Category Archives: C Programs

C Programs

C Program to Insertion Sort Using Array

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C Program to implement Insertion sort Algorithm

In this tutorial, we will learn to create a C program that will do insertion sort using C programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in C Programming.
Creating and Using the user-defined function in C programming.

What is Insertion Sort?

In every programming language, the sorting of data is a very important factor. In C Language. Many different techniques for sorting are available to work with but in this tutorial, we will focus on the Insertion Sort Technique.

In this technique, the work is done by inserting the smaller number to the first position. i.e.

the first and second number is sorted if the number is big then it is moved to the right and if it is small the moves to the left.

Algorithm

The simple steps of insertion sort are as follows -

Step 1 - Let us assume if the element already sorted. Return 1.

Step 2 - Pick the next element store it separately in a key.

Step 3 - Now, compare the key with all elements in the sorted array.

Step 4 - If the element in the sorted array is smaller than the current element, 
         then move to the next element. Else, shift greater elements in the array 
         towards the right.
Step 5 - Insert the value.

Step 6 - Repeat until the array is sorted.

The simple steps of insertion sort are as follows -

Step 1 - Let us assume if the element already sorted. Return 1.

Step 2 - Pick the next element store it separately in a key.

Step 3 - Now, compare the key with all elements in the sorted array.

Step 4 - If the element in the sorted array is smaller than the current element,

then move to the next element. Else, shift greater elements in the array

towards the right.

Step 5 - Insert the value.

Step 6 - Repeat until the array is sorted.

Program For Insertion Sort

#include <stdio.h>  
  
void insert(int x[], int n) 
/* function for sorting an array with insertion sort */  
{  
    int i, j, flag;  
    for (i = 1; i < n; i++) {  
        flag = x[i];  
        j = i - 1;  
  
        while(j>=0 && flag <= x[j]) 
        /* Move the elements greater than flag to one position 
             next from their current position*/  
        {    
            x[j+1] = x[j];     
            j = j-1;    
        }    
        x[j+1] = flag;    
    }  
}  
  
void printArry(int x[], int n) 
/* function to print the array */  
{  
    int i;  
    for (i = 0; i < n; i++)  
        printf("%d ", x[i]);  
}  
  
int main()  
{  
    int x[] = { 54, 65, 21, 32, 87, 98, 78, 89 };  
    int n = sizeof(x) / sizeof(x[0]);  
    printf("Elements of array before sorting are - \n");  
    printArry(x, n);  
    insert(x, n);  
    printf("\nElements of array after sorting are - \n");    
    printArry(x, n);  
  
    return 0;  
}

#include <stdio.h>

void insert(int x[], int n)

/* function for sorting an array with insertion sort */

{

int i, j, flag;

for (i = 1; i < n; i++) {

flag = x[i];

j = i - 1;

while(j>=0 && flag <= x[j])

/* Move the elements greater than flag to one position

next from their current position*/

{

x[j+1] = x[j];

j = j-1;

}

x[j+1] = flag;

}

void printArry(int x[], int n)

/* function to print the array */

{

int i;

for (i = 0; i < n; i++)

printf("%d ", x[i]);

}

int main()

{

int x[] = { 54, 65, 21, 32, 87, 98, 78, 89 };

int n = sizeof(x) / sizeof(x[0]);

printf("Elements of array before sorting are - \n");

printArry(x, n);

insert(x, n);

printf("\nElements of array after sorting are - \n");

printArry(x, n);

return 0;

}

Output:-

In the above program, we have first declared and initialized a set of variables required in the program.

n = it will hold the size of the array.
x[]= it will hold the elements in an array.

Function to print array:-

Insertion sort function

Main function body

C Program to Access Elements of an Array Using Pointer

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C Program to Access Elements of an Array Using Pointer

In this tutorial, we will learn to create a C program that will Access Elements of an Array Using Pointer using C programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in C Programming.
Using pointer in C programming.

Access Elements of an Array Using Pointer:-

As we all know array is a collection of similar data type elements. In an array, only one variable is declared which can store multiple values. First will take the elements of an array from the user. Then will pass the elements address to the pointer and the will print the elements of array /Access Elements of an Array Using Pointer with the help of C Programming Language.

Pointer is a variable that can store the address of another variable.

Algorithm:-

STEP 1: START

STEP 2: INITIALIZE array[]

STEP 3: take input elements

STEP 4: create pointer

STEP 5: pass array to pointer

STEP 6: print array using pointer

STEP 7: Return 0.

STEP 8: END.

STEP 1: START

STEP 2: INITIALIZE array[]

STEP 3: take input elements

STEP 4: create pointer

STEP 5: pass array to pointer

STEP 6: print array using pointer

STEP 7: Return 0.

STEP 8: END.

Program:-

Access Elements of an Array Using Pointer.

#include <stdio.h>
int main() {
    //declaring variaable
    int arry[5];
    int i;
    
    //Taking elements of array from the user
    printf("Enter 5 elements for the array: ");
    for (i = 0; i < 5; ++i)
        scanf("%d", arry + i);
        
    //printing elements of array with the help of pointer
    
    //declaring pointer
     int *ptr = arry;
     
   printf("You have entered \n");
    for(i = 0; i < 5; i++)
        printf("array[%d] = %d\n",i,*(ptr+i));

    return 0;
   
}

#include <stdio.h>

int main() {

//declaring variaable

int arry[5];

int i;

//Taking elements of array from the user

printf("Enter 5 elements for the array: ");

for (i = 0; i < 5; ++i)

scanf("%d", arry + i);

//printing elements of array with the help of pointer

//declaring pointer

int *ptr = arry;

printf("You have entered \n");

for(i = 0; i < 5; i++)

printf("array[%d] = %d\n",i,*(ptr+i));

return 0;

}

Output:-

The above program we have to first initialize the required variable.

array = it will hold the elements in an array.
i = it will hold the integer value to control array.

Creating Pointer.

*ptr = it will hold the address of elements in a array.

Taking input from the user in an array elements in array.

Printing using array.

C Program to Reverse an Array

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C Program to Reverse an Array

In this tutorial, we will learn to create a C program that will reverse the element of Array using C programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in C Programming.

The reverse of the array:-

As we all know array is a collection of similar data type elements. In an array, only one variable is declared which can store multiple values. First will take the number of elements of an array from the user. Then will take the elements from the user for the array. And at last, we will reverse the array using C Programming Language.

Algorithm:-

STEP 1: START

STEP 2: INITIALIZE arr[] = {25, 11, 7, 75, 56}

STEP 3: length= sizeof(arr)/sizeof(arr[0])

STEP 4: min = arr[0]

STEP 5: SET i=0. PRINT ARRAY i<lenght NORMAL ORDER

STEP 6: SET i=lenght -1 THEN PRINT

STEP 7: i=i-1.

STEP 8: PRINT "REVERSE ORDER OF ARRAY IS AS FOLLOWS"

STEP 9: RETURN 0.

STEP 10: END.

STEP 1: START

STEP 2: INITIALIZE arr[] = {25, 11, 7, 75, 56}

STEP 3: length= sizeof(arr)/sizeof(arr[0])

STEP 4: min = arr[0]

STEP 5: SET i=0. PRINT ARRAY i<lenght NORMAL ORDER

STEP 6: SET i=lenght -1 THEN PRINT

STEP 7: i=i-1.

STEP 8: PRINT "REVERSE ORDER OF ARRAY IS AS FOLLOWS"

STEP 9: RETURN 0.

STEP 10: END.

Program:-

To Reverse element from the array

#include<stdio.h>
int main()
{
//fill the code;
int n;
//Input form user number of elements of array
printf("Enter the number of elements of array :-\n");
scanf("%d",&n);
int arr[n];
int i;
//Input form user elements of array
printf("Enter the of elements of array :-\n");
for(i = 0; i < n; i++)
{
scanf("%d",&arr[i]);
}
//Output Reverse elements of array
printf(“Reversed array is:\n”);
for(i = n-1; i >= 0; i--)
{
printf("%d\n",arr[i]);
}
return 0;
}

#include<stdio.h>

int main()

{

//fill the code;

int n;

//Input form user number of elements of array

printf("Enter the number of elements of array :-\n");

scanf("%d",&n);

int arr[n];

int i;

//Input form user elements of array

printf("Enter the of elements of array :-\n");

for(i = 0; i < n; i++)

{

scanf("%d",&arr[i]);

}

//Output Reverse elements of array

printf(“Reversed array is:\n”);

for(i = n-1; i >= 0; i--)

{

printf("%d\n",arr[i]);

}

return 0;

}

Output:-

In the above program we have first initialized the required variable

arr = it will hold the elements in an array.
n = it will hold the number of elements in an array.
i = it will hold the integer value to control the array.
size = it will hold the size of array.

Taking input from the user in an array number of elements in array

Taking input from the user in an array elements in array

Program Code

C Program to Find Minimum Element in Array

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C Program to Find Minimum Element in Array

In this tutorial, we will learn to create a C program that will find the Minimum Element in Array using C programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in C Programming.
Creating and Using the user-defined function in C programming.

The minimum value of array:-

As we all know array is a collection of similar data type elements. In an array, only one variable is declared which can store multiple values. The index value of the array start’s from “0” if the array is having size 5 i.e. a[5] = { 1, 2, 3, 4, 5 } values can be stored in that array. Now the a[0] = 1 , a[1] = 2, a[2] = 3, a[3] = 4, a[4] = 5. On the array, we can do many operations with the help of the c language.

We will find the minimum size element with the help of conditional statements.

Algorithm:-

STEP 1: START

STEP 2: INITIALIZE arr[] = {25, 11, 7, 75, 56}

STEP 3: length= sizeof(arr)/sizeof(arr[0])

STEP 4: min = arr[0]

STEP 5: SET i=0. REPEAT STEP 6 and STEP 7 UNTIL i<length

STEP 6: if(arr[i]<min)               min=arr[i]

STEP 7: i=i+1.

STEP 8: PRINT "Smallest element present in given array:" by assigning min

STEP 9: RETURN 0.

STEP 10: END.

STEP 1: START

STEP 2: INITIALIZE arr[] = {25, 11, 7, 75, 56}

STEP 3: length= sizeof(arr)/sizeof(arr[0])

STEP 4: min = arr[0]

STEP 5: SET i=0. REPEAT STEP 6 and STEP 7 UNTIL i<length

STEP 6: if(arr[i]<min) min=arr[i]

STEP 7: i=i+1.

STEP 8: PRINT "Smallest element present in given array:" by assigning min

STEP 9: RETURN 0.

STEP 10: END.

Program:-

To find minimum value element from array

#include <stdio.h>
int main()
{
  int array[100], size, i, location = 0;
  //Declaring the variables in the program.
  //Taking the size of array input from the user 
  printf("Enter number of elements in array\n");
  scanf("%d", &size);
  //Taking elements of array as input from user
  printf("Enter %d integers\n", size);

  for (i = 0; i < size; i++)
    scanf("%d", &array[c]);

  for (i = 1; i < size; i++)
    if (array[c] < array[location])
      location = i;
  //Printing output of the program to user
  printf("Minimum element is present at location %d and its value is %d.\n", 
location+1, array[location]);
  return 0;
}

#include <stdio.h>

int main()

{

int array[100], size, i, location = 0;

//Declaring the variables in the program.

//Taking the size of array input from the user

printf("Enter number of elements in array\n");

scanf("%d", &size);

//Taking elements of array as input from user

printf("Enter %d integers\n", size);

for (i = 0; i < size; i++)

scanf("%d", &array[c]);

for (i = 1; i < size; i++)

if (array[c] < array[location])

location = i;

//Printing output of the program to user

printf("Minimum element is present at location %d and its value is %d.\n",

location+1, array[location]);

return 0;

}

Output:-

In the above program we have first initialized the required variable

location = it will hold the location of array elements.
array[100] = it will hold the elements in an array.
i = it will hold the integer value to control the array.
size = it will hold the size of the array.

Printing output of the program to user

Program Code

C Program to Find Maximum Element in Array

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C Program to Find Maximum Element in Array

In this tutorial, we will learn to create a C program that will find the maximum Element in Array using C programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in C Programming.
Creating and Using the user-defined function in C programming.

The Maximum value of array:-

We will find the maximum size element with the help of conditional statements.

Algorithm:-

STEP 1: START

STEP 2: INITIALIZE array

STEP 3: take input array size

STEP 4: take input array elements

STEP 5: check using statements

STEP 6: PRINT "Largest element present in given array:" 

STEP 7: RETURN 0.

STEP 8: END.

STEP 1: START

STEP 2: INITIALIZE array

STEP 3: take input array size

STEP 4: take input array elements

STEP 5: check using statements

STEP 6: PRINT "Largest element present in given array:"

STEP 7: RETURN 0.

STEP 8: END.

Program:-

To find the Maximum value element from the array

#include <stdio.h>
int main() 
{
  //declaring variables.
  int no;
  double arr[100];
  //Taking input size of array 
  printf("Enter the number of elements between 1 to 100): ");
  scanf("%d", &no);
  //any numner input
  for (int i = 0; i < no; ++i) {
    printf("Enter element %d: ", i + 1);
    scanf("%lf", &arr[i]);
  }
  // storing the largest number to arr[0]
  for (int i = 1; i < no; ++i) {
    if (arr[0] < arr[i]) {
      arr[0] = arr[i];
    }
  }
  //printing output
  printf("Largest element = %.2lf", arr[0]);

  return 0;
}

#include <stdio.h>

int main()

{

//declaring variables.

int no;

double arr[100];

//Taking input size of array

printf("Enter the number of elements between 1 to 100): ");

scanf("%d", &no);

//any numner input

for (int i = 0; i < no; ++i) {

printf("Enter element %d: ", i + 1);

scanf("%lf", &arr[i]);

}

// storing the largest number to arr[0]

for (int i = 1; i < no; ++i) {

if (arr[0] < arr[i]) {

arr[0] = arr[i];

}

//printing output

printf("Largest element = %.2lf", arr[0]);

return 0;

}

Output:-

In the above program, we have first initialized the required variable

arr[100] = it will hold the elements in an array.
i = it will hold the integer value to control the array.
no= it will hold the size of the array.

Printing output of the program to the user

Input Size.

Input elements of the array.

Calculating the maximum value.

C Program to Calculate Average Using Arrays

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C Program to Find Average an Array

In this tutorial, we will learn to create a C program that will average the elements of Array using C programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in C Programming.

Average of the array:-

As we all know array is a collection of similar data type elements. In an array, only one variable is declared which can store multiple values. First will take the number of elements of an array from the user. Then will take the elements from the user for the array. And at last, will total the values and divide them from the number of elements of the array to find the average using C Programming Language.

Algorithm:-

STEP 1: START

STEP 2: INITIALIZE arr[] = {25, 11, 7, 75, 56}

STEP 3: length= sizeof(arr)/sizeof(arr[0])

STEP 4: min = arr[0]

STEP 5: SET i=0. PRINT ARRAY i<lenght NORMAL ORDER

STEP 6: SET i=lenght -1 THEN PRINT

STEP 7: i=i-1.

STEP 8: PRINT "REVERSE ORDER OF ARRAY IS AS FOLLOWS"

STEP 9: RETURN 0.

STEP 10: END.

STEP 1: START

STEP 2: INITIALIZE arr[] = {25, 11, 7, 75, 56}

STEP 3: length= sizeof(arr)/sizeof(arr[0])

STEP 4: min = arr[0]

STEP 5: SET i=0. PRINT ARRAY i<lenght NORMAL ORDER

STEP 6: SET i=lenght -1 THEN PRINT

STEP 7: i=i-1.

STEP 8: PRINT "REVERSE ORDER OF ARRAY IS AS FOLLOWS"

STEP 9: RETURN 0.

STEP 10: END.

Program:-

To find the Average value element from the array

#include<stdio.h>
int main()
{
//fill the code;
int n;
//Input form user number of elements of array
printf("Enter the number of elements of array :-\n");
scanf("%d",&n);
int arr[n];
int i, avg=0, sum=0;
//Input form user elements of array
printf("Enter the of elements of array :-\n");
for(i = 0; i < n; i++)
{
scanf("%d",&arr[i]);
}
//Sum of array elements
for(i = 0; i < n; i++)
{
sum = sum+arr[i];
}
//Average of array elements
avg = sum/n;
//Output Average of elements of array
printf("Average of array is %d\n", avg);

return 0;
}

#include<stdio.h>

int main()

{

//fill the code;

int n;

//Input form user number of elements of array

printf("Enter the number of elements of array :-\n");

scanf("%d",&n);

int arr[n];

int i, avg=0, sum=0;

//Input form user elements of array

printf("Enter the of elements of array :-\n");

for(i = 0; i < n; i++)

{

scanf("%d",&arr[i]);

}

//Sum of array elements

for(i = 0; i < n; i++)

{

sum = sum+arr[i];

}

//Average of array elements

avg = sum/n;

//Output Average of elements of array

printf("Average of array is %d\n", avg);

return 0;

}

Output:-

In the above program we have first initialized the required variable

arr = it will hold the elements in an array.
n = it will hold the number of elements in an array.
i = it will hold the integer value to control the array.
sum= it will hold the sum of the array.
avg= it will hold the average of the array.

Taking input from the user in an array number of elements in the array.

Taking input from the user in array elements in the array.

Sum of the array.

Average of Array.

C Program For Merging Of Two Arrays

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C Program to Merge Two Arrays

In this tutorial, we will learn to create a C program that will merge two different array the element of Array using C programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in C Programming.

Merging of two arrays:-

As we all know array is a collection of similar data type elements. In array only one variable is declared which can store multiple values. First will take the number of elements of array1 from the user. Then will take the number of elements of array2 from the user. Then will take the elements from the user for the array1 and as well as for array 2.

And at last, will merge the values and of the different arrays into a single array using C Programming Language.

Algorithm:-

STEP 1: START

STEP 2: INITIALIZE arr[] = {25, 11, 7, 75, 56}

STEP 3: length= sizeof(arr)/sizeof(arr[0])

STEP 4: min = arr[0]

STEP 5: SET i=0. PRINT ARRAY i<lenght NORMAL ORDER

STEP 6: SET i=lenght -1 THEN PRINT

STEP 7: i=i-1.

STEP 8: PRINT "REVERSE ORDER OF ARRAY IS AS FOLLOWS"

STEP 9: RETURN 0.

STEP 10: END.

STEP 1: START

STEP 2: INITIALIZE arr[] = {25, 11, 7, 75, 56}

STEP 3: length= sizeof(arr)/sizeof(arr[0])

STEP 4: min = arr[0]

STEP 5: SET i=0. PRINT ARRAY i<lenght NORMAL ORDER

STEP 6: SET i=lenght -1 THEN PRINT

STEP 7: i=i-1.

STEP 8: PRINT "REVERSE ORDER OF ARRAY IS AS FOLLOWS"

STEP 9: RETURN 0.

STEP 10: END.

Program:-

To find Merge the two array element into single array

// Online C compiler to run C program online
#include <stdio.h>

int main()
{
    
    int n1,n2,n3;            
    //Declaration of Size of Array 1
    printf("\nEnter the size of first array \n");
    scanf("%d",&n1);
    //Declaration of Size of Array 2
    printf("\nEnter the size of second array \n");
    scanf("%d",&n2);
    
    n3=n1+n2;
    printf("\nEnter the first array elements\n");
    int a[n1],b[n2],c[n3];     //Declaration of Array 
    for(int i=0;i<n1;i++)      //Initialization of Array
    {
       scanf("%d",&a[i]);
       c[i]=a[i];
    }
    int k=n1;
    printf("\nEnter the second array elements\n");
    for(int i=0;i<n2;i++)      //Initialization of Array
    {
        scanf("%d",&b[i]);
        c[k]=b[i];
        k++;
    }
    printf("\nThe merged third array..\n");
    for(int i=0;i<n3;i++)
    printf("%d ",c[i]);        //Printing of the merged array 
    
    
    return 0;   
}

// Online C compiler to run C program online

#include <stdio.h>

int main()

{

int n1,n2,n3;

//Declaration of Size of Array 1

printf("\nEnter the size of first array \n");

scanf("%d",&n1);

//Declaration of Size of Array 2

printf("\nEnter the size of second array \n");

scanf("%d",&n2);

n3=n1+n2;

printf("\nEnter the first array elements\n");

int a[n1],b[n2],c[n3]; //Declaration of Array

for(int i=0;i<n1;i++) //Initialization of Array

{

scanf("%d",&a[i]);

c[i]=a[i];

}

int k=n1;

printf("\nEnter the second array elements\n");

for(int i=0;i<n2;i++) //Initialization of Array

{

scanf("%d",&b[i]);

c[k]=b[i];

k++;

}

printf("\nThe merged third array..\n");

for(int i=0;i<n3;i++)

printf("%d ",c[i]); //Printing of the merged array

return 0;

}

Output:-

The above program we have first initialize the required variable

a[] = it will hold the elements in a array1.
b[] = it will hold the elements in a array2.
c[] = it will hold the elements in a array3.
n1 = it will hold the number of elements of array1.
n2 = it will hold the number of elements of array2.
n3 = it will hold the number of elements of array3.
i = it will hold the integer value to control array using for loop.

Taking input from the user for array1 as well as array2 and merging them.

Printing merged array.

C Program to Insert an Element in an Array

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C Program to Insert an Element in an Array

In this tutorial, we will learn to create a C program that will Insert an Element in an Array using C programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in C Programming.

Insert an Element of Array

Algorithm:-

Step 1. Initialize variable.

Step 2. Take size of array .

Step 3. Take elements of array.

Step 4. Take location to insert a element.

Step 5. insert the element.

Step 6. Print result.

Step 7. End

Step 1. Initialize variable.

Step 2. Take size of array .

Step 3. Take elements of array.

Step 4. Take location to insert a element.

Step 5. insert the element.

Step 6. Print result.

Step 7. End

Program:-

To insert an element in the array

#include <stdio.h>

int main()
{
//declaring variables
int array[100], position, i, no, value;
//taking size of array
printf("Enter number of elements in array\n");
scanf("%d", &no);
//taking elements of array
printf("Enter %d elements\n", no);
//for loop for input
for (i = 0; i < no; i++)
scanf("%d", &array[i]);
//taking insertion position i.e. location for inserting element
printf("Enter the location where you wish to insert an element\n");
scanf("%d", &position);
//value to be inserted
printf("Enter the value to insert\n");
scanf("%d", &value);

for (i = no - 1; i >= position - 1; i--)
array[i+1] = array[i];

array[position-1] = value;
//printing output
printf("Resultant array is\n");

for (i = 0; i <= no; i++)
printf("%d\n", array[i]);
return 0;
}

#include <stdio.h>

int main()

{

//declaring variables

int array[100], position, i, no, value;

//taking size of array

printf("Enter number of elements in array\n");

scanf("%d", &no);

//taking elements of array

printf("Enter %d elements\n", no);

//for loop for input

for (i = 0; i < no; i++)

scanf("%d", &array[i]);

//taking insertion position i.e. location for inserting element

printf("Enter the location where you wish to insert an element\n");

scanf("%d", &position);

//value to be inserted

printf("Enter the value to insert\n");

scanf("%d", &value);

for (i = no - 1; i >= position - 1; i--)

array[i+1] = array[i];

array[position-1] = value;

//printing output

printf("Resultant array is\n");

for (i = 0; i <= no; i++)

printf("%d\n", array[i]);

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

arrah[] = it will hold the elements in an array.
no = it will hold the number of elements in an array.
i = it will hold the integer value to control the array.
value = it will hold the value to be inserted.
position = it will hold the location for the insert element of the array.

Taking input from the user in an array number of elements in the array

Taking input from the user in array elements in the array

Insert location for elements.

inert value.

Printing output

C Program to Reverse a Sentence Using Recursion

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C Program to Reverse a Sentence Using Recursion

In this tutorial, we will learn to create a C program that will C Program to Reverse a Sentence Using Recursion in C programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Usage of Conditional statements.
Basic Input and Output function in C Programming.
Basic C programming.

Reverse a Sentence Using Recursion

In c programming, we have many predefined functions to workout with. The c language allows us to take long inputs from the users i.e. statements, these string values in the c programming language can be manipulated with the help of many predefined functions available for working.

The string manipulation functions can be applied to the variables or to be exact on the input statements. Available functions in a c programming language can make it easier to work with the strings.

With the help of these functions, we can reverse a string. Change a string to an upper case string or to a lower case string and many more.

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input statement from the user.

3. Send that statement to the function.

4. Passing those variable to if conditional.

5. Printing the result words.

1. Declaring the variables for the program.

2. Taking the input statement from the user.

3. Send that statement to the function.

4. Passing those variable to if conditional.

5. Printing the result words.

Program to Reverse a sentence using the recursion:-

#include <stdio.h>
void reverseSentence();
int main() 
{
    //print meaasge to take input sentence
    printf("Enter a sentence: ");
    reverseSentence();
    return 0;
}

void reverseSentence() 
{
    //declaring the vareables 
    char c;
    //Taking Input sentence
    scanf("%c", &c);
    
    if (c != '\n') 
    {
        //printing reverse sentence
        reverseSentence();
        printf("%c", c);
    }
}

#include <stdio.h>

void reverseSentence();

int main()

{

//print meaasge to take input sentence

printf("Enter a sentence: ");

reverseSentence();

return 0;

}

void reverseSentence()

{

//declaring the vareables

char c;

//Taking Input sentence

scanf("%c", &c);

if (c != '\n')

{

//printing reverse sentence

reverseSentence();

printf("%c", c);

}

Output:-

In the above program we have first initialized the required variable.

c = string type variable that will hold the value of the input sentence.

Input strings from the user.

Scanning the input for the program.

Reverse printing function for the sentence.

Main Function of the program.

C Program to Concatenate Two Strings Using Pointers

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C Program to Concatenate Two Strings Using Pointers

In this tutorial, we will learn to create a C program that will Concatenate Two Strings Using Pointers in C programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
While loop in c programming.

Concatenate Two Strings Using Pointers

As we all know the String is a collection of character data types. In strings, only one variable is declared which can store multiple values. First will take the number of elements of string 1 from the user. Then will take the number of elements of string 2 from the user. Then will take the elements from the user for string 1 and as well as for string 2. And concatenate them using the pointer.

With the help of this program, we can Concatenate Two Strings Using Pointers.

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input number from the user.

3. Adding the given sting to pointers.

4. Passing those variables to while loop.

5. Using the those while loop one by one to add the strings.

6. Printing the result words.

1. Declaring the variables for the program.

2. Taking the input number from the user.

3. Adding the given sting to pointers.

4. Passing those variables to while loop.

5. Using the those while loop one by one to add the strings.

6. Printing the result words.

Program to Concatenate Two Strings Using Pointers:-

#include <stdio.h>  

int main()  

{
  //Declaring the required variables
  char string1[20]; // declaration char array1   
  char string2[20]; // declaration char array2   
  int i=0,j=0; // integer variables declaration 
  char *str1; // of char pointer declaration
  char *str2;  // char pointer  declaration
  str1=string1;  
  str2=string2;  
  
  //Taking Input From the user
  printf("Enter the first string\n");  
  scanf("%s",string1);  
  printf("\nEnter the second string\n");  
  scanf("%s", string2);  
  while(string1[i]!='\0')  
  {  
     ++str1;  
     i++;  
  }  
  
  while(string2[j]!='\0')  
  {  
      *str1=*str2;  
      str1++;  
      str2++;  
      j++;  
  }  
  printf("The concatenated string is %s",string1);  
  
    return 0;  
}

#include <stdio.h>

int main()

{

//Declaring the required variables

char string1[20]; // declaration char array1

char string2[20]; // declaration char array2

int i=0,j=0; // integer variables declaration

char *str1; // of char pointer declaration

char *str2; // char pointer declaration

str1=string1;

str2=string2;

//Taking Input From the user

printf("Enter the first string\n");

scanf("%s",string1);

printf("\nEnter the second string\n");

scanf("%s", string2);

while(string1[i]!='\0')

{

++str1;

i++;

}

while(string2[j]!='\0')

{

*str1=*str2;

str1++;

str2++;

j++;

}

printf("The concatenated string is %s",string1);

return 0;

}

Output:-

The above program we have first initialize the required variable.

string1[20] = it will hold the string value.
string2[20] = it will hold the string value.
i = it will hold the integer value.
j = it will hold the integer value.
*str1 = pointer type variable 1.
*str2 = pointer type variable 2.

Input strings from the user.

While loop body for concatenating the strings using the pointers and printing the concatenated string.

C Program to Compare Two Strings Without Using strcmp

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C Program to Compare Two Strings Without Using strcmp

In this tutorial, we will learn to create a C program that will Compare Two Strings Without Using strcmp in C programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic of C programming.
For loop and its concepts in C Programming.
Conditional Statements in C Programming.

Compare Two Strings Without Using strcmp

As we all know the String is a collection of character data types. In strings, only one variable is declared which can store multiple values. First will take the elements of string 1 from the user. Then will take the elements of string 2 from the user. Then will compare the two taken strings without using the predefined functions. i.e. compare them without using the strcmp function.

With the help of this program, we can Compare Two Strings Without Using strcmp

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input string one from the user.

3. Taking the input string two from the user.

4. Comparing the string one and two.

5. Printing the result .

6. End

1. Declaring the variables for the program.

2. Taking the input string one from the user.

3. Taking the input string two from the user.

4. Comparing the string one and two.

5. Printing the result .

6. End

Program to Compare Two Strings Without Using strcmp:-

/* C program to Compare Two Strings without using strcmp() */
 
#include <stdio.h>
#include <string.h>

int main()
{
    //DECLARING THE VARIABLES.
  	char String1[100], String2[100];
  	int  i;
    //TAKING INPUT STRING ONE FROM THE USER
  	printf("\n Please Enter the First String :  ");
  	gets(String1);
  	//TAKING INPUT STRING TWO FROM THE USER
  	printf("\n Please Enter the Second String :  ");
  	gets(String2);
  	//COMPARING STRINGS WITHOUT USING THE STRCMP()
  	for(i = 0; String1[i] == String2[i] && String1[i] == '\0'; i++);
  	if(String1[i] < String2[i])
   	{
   	    //PRINTING IF STING ONE IS LESS THAN STRING TWO
   		printf("\n string 1 is Less than string 2");
	}
	else if(String1[i] > String2[i])
   	{
   	    //PRINTING IF STING TWO IS LESS THAN STRING ONE
   		printf("\n string 2 is Less than string 1");
	}
	else
   	{
   	    //PRINTING IF STING ONE IS EQUAL TO STRING TWO
   		printf("\n string 1 is Equal to string 2");
	}
  	
  	return 0;
}

/* C program to Compare Two Strings without using strcmp() */

#include <stdio.h>

#include <string.h>

int main()

{

//DECLARING THE VARIABLES.

char String1[100], String2[100];

int i;

//TAKING INPUT STRING ONE FROM THE USER

printf("\n Please Enter the First String : ");

gets(String1);

//TAKING INPUT STRING TWO FROM THE USER

printf("\n Please Enter the Second String : ");

gets(String2);

//COMPARING STRINGS WITHOUT USING THE STRCMP()

for(i = 0; String1[i] == String2[i] && String1[i] == '\0'; i++);

if(String1[i] < String2[i])

{

//PRINTING IF STING ONE IS LESS THAN STRING TWO

printf("\n string 1 is Less than string 2");

}

else if(String1[i] > String2[i])

{

//PRINTING IF STING TWO IS LESS THAN STRING ONE

printf("\n string 2 is Less than string 1");

}

else

{

//PRINTING IF STING ONE IS EQUAL TO STRING TWO

printf("\n string 1 is Equal to string 2");

}

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

string1[100] = it will hold the string value.
string2[100] = it will hold the string value.
i = it will hod the integer value that will control the for loop

Taking Input string 1 from the user.

Taking Input string 2 from the user.

Printing Output without using the strcmp function which is available in c language.

C Program to Concatenate Two Strings Without Using strcat

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C Program to Concatenate Two Strings Without Using strcat

In this tutorial, we will learn to create a C program that will Concatenate Two Strings Without Using strcat in C programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
While loop in c programming.

Concatenate Two Strings Without Using strcat.

With the help of this program, we can Concatenate Two Strings Without Using strcat

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input number from the user.

3. Adding the given sting to third string.

4. Passing those variables to while loop.

5. Using the those while loop one by one to add the strings.

6. Printing the result words.

1. Declaring the variables for the program.

2. Taking the input number from the user.

3. Adding the given sting to third string.

4. Passing those variables to while loop.

5. Using the those while loop one by one to add the strings.

6. Printing the result words.

Program to Concatenate Two Strings Using Without Using strcat :-

#include <stdio.h>

int main()
{
    // C Program to concatenate
    // two strings without using strcat
	// Getting the two Strings to be concatenated
	char string1[100] = "Best tutorial site", string2[100] = " W3adda ";

	// Declare a new Strings
	// to store the concatenated String
	char string3[100];

	int i = 0, j = 0;

    //Printing string one and two
	printf("\nFirst string is : %s", string1);
	printf("\nSecond string is : %s", string2);

	// Insert the first string in the new string
	while (string1[i] != '\0') {
		string3[j] = string1[i];
		i++;
		j++;
	}

	// Insert the second string in the new string
	i = 0;
	while (string2[i] != '\0') {
		string3[j] = string2[i];
		i++;
		j++;
	}
	string3[j] = '\0';

	// Print the concatenated string
	printf("\nConcatenated string: %s", string3);

	return 0;
}

#include <stdio.h>

int main()

{

// C Program to concatenate

// two strings without using strcat

// Getting the two Strings to be concatenated

char string1[100] = "Best tutorial site", string2[100] = " W3adda ";

// Declare a new Strings

// to store the concatenated String

char string3[100];

int i = 0, j = 0;

//Printing string one and two

printf("\nFirst string is : %s", string1);

printf("\nSecond string is : %s", string2);

// Insert the first string in the new string

while (string1[i] != '\0') {

string3[j] = string1[i];

i++;

j++;

}

// Insert the second string in the new string

i = 0;

while (string2[i] != '\0') {

string3[j] = string2[i];

i++;

j++;

}

string3[j] = '\0';

// Print the concatenated string

printf("\nConcatenated string: %s", string3);

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

string1[100] = it will hold the string value.
string2[100] = it will hold the string value.
i = it will hold the integer value.
j = it will hold the integer value.
string3 = it will hold the string value.

Input strings.

While loop body for the first string to another.

While loop body for the second string to another.

Printing Output.