Category Archives: C Programs

C Programs

C Program to Sort a String in Alphabetical Order

In this tutorial, we will learn to create a C program that will Sort a String in Alphabetical Order 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.
Concepts of for loop.
Using String functions of c language.

Sort a String in Alphabetical Order

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 string from the user. Then will check the number of elements of the string. Now we will arrange that string in alphabetical order.

With the help of this program, we can Sort a String in Alphabetical Order

Algorithm:-

1. Declaring the variables for the program.

2. Add a sting to the variable

3. Print the given string.

4. Now pass thatstring to for loop for sorting

5. Printing the result string.

6. End

1. Declaring the variables for the program.

2. Add a sting to the variable

3. Print the given string.

4. Now pass thatstring to for loop for sorting

5. Printing the result string.

6. End

Program to Sort a String in Alphabetical Order:-

#include <stdio.h>
#include <string.h>
//including header files in the program
int main ()
{
   //declaring variables required for the program
   char string[] = "w3adda";
   char flag;
   int i, j;
   
   //calculating string size 
   int n = strlen(string);
   
   //sting before sorting
   printf("String before sorting - %s \n", string);
   
   //for loop for sorting 
   for (i = 0; i < n-1; i++) {
      for (j = i+1; j < n; j++) {
         if (string[i] > string[j]) {
            flag = string[i];
            string[i] = string[j];
            string[j] = flag;
         }
      }
   }
   //printing output in alpfabetical order 
   printf("String after sorting  - %s \n", string);
   return 0;
}

#include <stdio.h>

#include <string.h>

//including header files in the program

int main ()

{

//declaring variables required for the program

char string[] = "w3adda";

char flag;

int i, j;

//calculating string size

int n = strlen(string);

//sting before sorting

printf("String before sorting - %s \n", string);

//for loop for sorting

for (i = 0; i < n-1; i++) {

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

if (string[i] > string[j]) {

flag = string[i];

string[i] = string[j];

string[j] = flag;

}

//printing output in alpfabetical order

printf("String after sorting - %s \n", string);

return 0;

}

Output:-

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

string1[] = it will hold the string value.
flag = it will hold the temporary value.
i = it will hold the integer value for the loop.
j = it will hold the integer value for the loop.
n = it will hold the size of the string.

Including the required header files.

Taking Input string.

Printing before the alphabetical order.

Printing a String in Alphabetical Order.

Program Code for arranging.

C Program to Concatenate Two Strings Using strcat

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C Program to Concatenate Two Strings Using strcat

In this tutorial, we will learn to create a C program that will Concatenate Two Strings 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.
Using String functions of c language.

Concatenate Two Strings Using strcat

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 strcat function.

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

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input number from the user.

3. Adding the given sting to second string.

4. Passing those variables to strcat loop.

5. Printing the result words.

6. End

1. Declaring the variables for the program.

2. Taking the input number from the user.

3. Adding the given sting to second string.

4. Passing those variables to strcat loop.

5. Printing the result words.

6. End

Program to Concatenate Two Strings Using strcat:-

// C Program to concatenate
// two strings  using strcat
#include <stdio.h>
#include <string.h>
int main()
// Getting the two Strings to be concatenated

{
    // Declare new String variables
	// to store the concatenated String
    char string1[100], string2[100];
     //Gettin string one from user 
    printf("Enter the first string \n");
    gets(string1);
    //Gettin string two from user 
    printf("Enter the second string \n");
    gets(string2);
    
    strcat(string1,string2);
    // Print the concatenated string
    printf("String obtained on concatenation is %s\n",string1);
    
    return 0;

}

// C Program to concatenate

// two strings using strcat

#include <stdio.h>

#include <string.h>

int main()

// Getting the two Strings to be concatenated

{

// Declare new String variables

// to store the concatenated String

char string1[100], string2[100];

//Gettin string one from user

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

gets(string1);

//Gettin string two from user

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

gets(string2);

strcat(string1,string2);

// Print the concatenated string

printf("String obtained on concatenation is %s\n",string1);

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.

Taking Input string 1 from the user.

Taking Input string 2 from the user.

Printing Output using the strcat function which is available in c language.

C Program to Copy String Without Using strcpy

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C Program to Copy String Without Using strcpy

In this tutorial, we will learn to create a C program that will Copy String Without Using strcpy 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.
Concepts of for loop.
Using String functions of c language.

Copy String Without Using strcpy

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 string from the user. Then will pass that string to a for loop for copying. The C programming language has many pre-defined functions for string manipulation. but in today’s tutorial, we will do without using strcpy().

With the help of this program, we can Copy String Without Using strcpy

Algorithm:-

1. Declaring the variables for the program.

2. Add a sting to the variable

3. Print the given string.

4. Now pass thatstring to for loop for copying

5. Printing the result string.

6. End

1. Declaring the variables for the program.

2. Add a sting to the variable

3. Print the given string.

4. Now pass thatstring to for loop for copying

5. Printing the result string.

6. End

Program to Copy String Without Using strcpy:-

#include <stdio.h>
int main() 
{
    //declaring variables
    char string1[100], string2[100], i;
    //taking input string from the user
    printf("Enter string 1 to be copied: ");
    //putting string in 1 variable
    fgets(string1, sizeof(string1), stdin);
    //Adding that string to another variable
    for (i = 0; string1[i] != '\0'; ++i) 
    {
        string2[i] = string1[i];
    }
    
    string2[i] = '\0';
    //printing output of string copied without strcpy
    printf ("Copied string 2 without strcpy(): %s", string2);
    return 0;
}

#include <stdio.h>

int main()

{

//declaring variables

char string1[100], string2[100], i;

//taking input string from the user

printf("Enter string 1 to be copied: ");

//putting string in 1 variable

fgets(string1, sizeof(string1), stdin);

//Adding that string to another variable

for (i = 0; string1[i] != '\0'; ++i)

{

string2[i] = string1[i];

}

string2[i] = '\0';

//printing output of string copied without strcpy

printf ("Copied string 2 without strcpy(): %s", string2);

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 for the loop.

Taking Input string from the user.

Reading the input string from the user.

Copying the string with the help of for loop without using strcpy() function.

Printing output copied string2 without strcpy.

C Program to Find the Length of a String

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C Program to Find the Length of a String.

In this tutorial, we will learn to create a C program that will Find the Length of a String 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.
Concepts of for loop.
Using String functions of c language.

Find the Length of a String.

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 string from the user. Then will pass that string to a for loop for copying. The C programming language has many pre-defined functions for string manipulation. but in today’s tutorial, we will do it with the help of for loop.

With the help of this program, we can Find the Length of a String.

Algorithm:-

1. Declaring the variables required for the program.

2. Taking input string from the user.

3. Storing the input from the user.

4. Using for loop to find the length of input string.

5. rinting the length of the string

6. End

1. Declaring the variables required for the program.

2. Taking input string from the user.

3. Storing the input from the user.

4. Using for loop to find the length of input string.

5. rinting the length of the string

6. End

Program to Find the Length of a String:-

#include <stdio.h>
#include <string.h>
// C program to find the length of string
int main()
{
    //Declaring the variables required for the program
	char String[1000];
	int i;
	
    //Taking input string from the user 
	printf("Enter the String: ");
	
	//Storing the input from the user 
	scanf("%s", String);
	
    //using for loop to find the length of given string
	for (i = 0; String[i] != '\0'; ++i);
	
    //Printing the length of the string
	printf("Length of String is %d", i);

	return 0;
}

#include <stdio.h>

#include <string.h>

// C program to find the length of string

int main()

{

//Declaring the variables required for the program

char String[1000];

int i;

//Taking input string from the user

printf("Enter the String: ");

//Storing the input from the user

scanf("%s", String);

//using for loop to find the length of given string

for (i = 0; String[i] != '\0'; ++i);

//Printing the length of the string

printf("Length of String is %d", i);

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 for the loop.

Taking input string from the user.

Reading the input string from the user/Storing the input from the user.

Find the length using for loop of a given string.

Printing the length of the string

C Program to Remove all Characters in a String Except Alphabet

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C Program to Remove all Characters in a String Except Alphabet

In this tutorial, we will learn to create a C program that will Remove all Characters in a String Except Alphabet 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.
For loop in c programming.
While loop in c programming.

Remove all Characters in a String Except Alphabet.

With the help of this program, we can Remove all Characters in a String Except Alphabet.

Algorithm:-

1. Declare the variables.

2. Take the input string from the user.

3. Pass that string type variable to a loop.

4. matching the number value if there is a value then will remove it.

5. Print the string without numbers.

6. End the program.

1. Declare the variables.

2. Take the input string from the user.

3. Pass that string type variable to a loop.

4. matching the number value if there is a value then will remove it.

5. Print the string without numbers.

6. End the program.

Program to Remove all Characters in a String Except Alphabet:-

#include <stdio.h>
int main() 
{
    // declaring local variable for the program.
   char line[150];
   
   //Taking input string from the user. 
   printf("Enter a string: ");
   
   //Scanning the string from the user.
   fgets(line, sizeof(line), stdin); 
   
   //Extracting numbers from the code.
   for (int i = 0, j; line[i] != '\0'; ++i) {

      // enter the loop if the character is not an alphabet
      // and not the null character
      while (!(line[i] >= 'a' && line[i] <= 'z') && !(line[i] >= 'A' && line[i] <= 'Z') && !(line[i] == '\0')) {
         for (j = i; line[j] != '\0'; ++j) {

            // if j is not alphabet,
            // assign the value of (j+1)th element to the jth element
            line[j] = line[j + 1];
         }
         line[j] = '\0';
      }
   }
   
   //printing output
   printf("Output String: ");
   puts(line);
   return 0;
}

#include <stdio.h>

int main()

{

// declaring local variable for the program.

char line[150];

//Taking input string from the user.

printf("Enter a string: ");

//Scanning the string from the user.

fgets(line, sizeof(line), stdin);

//Extracting numbers from the code.

for (int i = 0, j; line[i] != '\0'; ++i) {

// enter the loop if the character is not an alphabet

// and not the null character

while (!(line[i] >= 'a' && line[i] <= 'z') && !(line[i] >= 'A' && line[i] <= 'Z') && !(line[i] == '\0')) {

for (j = i; line[j] != '\0'; ++j) {

// if j is not alphabet,

// assign the value of (j+1)th element to the jth element

line[j] = line[j + 1];

}

line[j] = '\0';

}

//printing output

printf("Output String: ");

puts(line);

return 0;

}

Output:-

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

line[150] = it will hold the string value.
i = it will hold the integer value for the loop.
j = it will hold the integer value for the loop.

Taking input string from the user.

Scanning the input string from the user.

Storing the string and extracting only string data by for loop.

Printing output of the program.

C Program to Count the Number of Vowels, Consonants and so on

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C Program to Count the Number of Vowels, Consonants and so on

In this tutorial, we will learn to create a C program that will Count the Number of Vowels, Consonants, and so on 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.
For loop in c programming.

Count the Number of Vowels, Consonants, and so on

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 line of string from the user. Then will take the number of elements in the string, Now we will filter the string using the c programming.

With the help of this program, we can Count the Number of Vowels, Consonants, and so on.

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input number from the user.

3. Adding the given sting to program  .

4. Passing those variables to forloop.

5. Using those numbers to be saved in variables and filter them with for loop.

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 program .

4. Passing those variables to forloop.

5. Using those numbers to be saved in variables and filter them with for loop.

6. Printing the result words.

Program to Count the Number of Vowels, Consonants, and so on:-

#include <stdio.h>
int main()
{
    //Declaring the required variables
    char line[150];
    int vowels, consonant, digit, space;
    //Assigning blank value to all
    vowels = consonant = digit = space = 0;
    
    //Taking Input string From the user
    printf("Enter a line of string: ");
    
    fgets(line, sizeof(line), stdin);
    //Getting size of string from the user
    
    for (int i = 0; line[i] != '\0'; ++i) 
    {
        ////filtering vowels from the string
        if (line[i] == 'a' || line[i] == 'e' || line[i] == 'i' ||
            line[i] == 'o' || line[i] == 'u' || line[i] == 'A' ||
            line[i] == 'E' || line[i] == 'I' || line[i] == 'O' ||
            line[i] == 'U')
            {
            ++vowels;
            }
            
            //filtering consonants from the string
            else if ((line[i] >= 'a' && line[i] <= 'z') || 
            (line[i] >= 'A' && line[i] <= 'Z')) {
            ++consonant;
        } 
        
        //filtering numbers from the string
        else if (line[i] >= '0' && line[i] <= '9')
        {
            ++digit;
        }
        
        ////filtering white spaces from the string
        else if (line[i] == ' ')
        {
            ++space;
        }
    }

    //Printing number of vowels 
    printf("Vowels: %d", vowels);
    //Printing number of consonants
    printf("\nConsonants: %d", consonant);
    //Printing number of Numbers
    printf("\nNumbers: %d", digit);
    //Printing number of White spaces
    printf("\nWhite spaces: %d", space);
    return 0;
}

#include <stdio.h>

int main()

{

//Declaring the required variables

char line[150];

int vowels, consonant, digit, space;

//Assigning blank value to all

vowels = consonant = digit = space = 0;

//Taking Input string From the user

printf("Enter a line of string: ");

fgets(line, sizeof(line), stdin);

//Getting size of string from the user

for (int i = 0; line[i] != '\0'; ++i)

{

////filtering vowels from the string

if (line[i] == 'a' || line[i] == 'e' || line[i] == 'i' ||

line[i] == 'o' || line[i] == 'u' || line[i] == 'A' ||

line[i] == 'E' || line[i] == 'I' || line[i] == 'O' ||

line[i] == 'U')

{

++vowels;

}

//filtering consonants from the string

else if ((line[i] >= 'a' && line[i] <= 'z') ||

(line[i] >= 'A' && line[i] <= 'Z')) {

++consonant;

}

//filtering numbers from the string

else if (line[i] >= '0' && line[i] <= '9')

{

++digit;

}

////filtering white spaces from the string

else if (line[i] == ' ')

{

++space;

}

//Printing number of vowels

printf("Vowels: %d", vowels);

//Printing number of consonants

printf("\nConsonants: %d", consonant);

//Printing number of Numbers

printf("\nNumbers: %d", digit);

//Printing number of White spaces

printf("\nWhite spaces: %d", space);

return 0;

}

Output:-

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

line[150] = it will hold the string value.
vowels = it will hold the integer value for vowels.
consonant = it will hold the integer value for consonants.
digit= it will hold the integer value for numbers.
space= it will hold the integer value for spaces.

Input strings from the user.

Assigning blank value to all to prevent garbage value.

Calculating the size of the string.

Filtering vowels from the string.

consonants filtering from the string.

filtering numbers from the string.

filtering white spaces from the string.

Printing output.

C Program to Print Integer

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C Program to Print Integer

C Program to Add Two Numbers using Pointer

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In this tutorial, we will learn to create a C program that will add two number using pointer in C programming.

Prerequisites

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

C Operators.
Basic input/output.
Pointers.
Basic C programming.

What Is Pointer?

A pointer variable are who hold the address of another variable.
i.e direct address of the memory location using &(address) operator.

C Program to Add Two Numbers using Pointer.

In this program first of all we take values from user and passes the address or value to the pointer variable and without using the actual variable we will calculate addition of them using pointer .let see the code now.

#include <stdio.h>

int main() {
 int a,b,*p1,*p2,add;
 printf("enter values of a and b");
 scanf("%d%d",&a,&b); // taking values from user
 p1=&a; // passing the address of values  a
 p2=&b; // passing the address of values  b
 add=*p1 + *p2; // calculating values.

printf("additon of values =%d",add);  // print result
     return 0;
}

#include <stdio.h>

int main() {

int a,b,*p1,*p2,add;

printf("enter values of a and b");

scanf("%d%d",&a,&b); // taking values from user

p1=&a; // passing the address of values a

p2=&b; // passing the address of values b

add=*p1 + *p2; // calculating values.

printf("additon of values =%d",add); // print result

return 0;

}

Output

C Program to Add Two Numbers using Pointer

Explanation.

In the program, we have 2 integer variables a and b and 2 pointer variables *p1 and *p2 . Now we assign the addresses of a and b to p1 and p2 receptively.

and then adding value of a and b using *p1 and *p2 into add.

Here

variable p1 holds the address of variable a with &(address) operator and p2 holds the address of variable b. So here & operator provide the address of variables.

and with the help of *(Asterisk) operator we can access the value of given address using pointer variable.

as we can see in above image p1 holds the address of variable a and p2 holds the address of variable b and without using a and b we are adding the values of a and b using pointer.

So in this program we have calculate two values using pointer variables .

C Program To find Sum of GP Series

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In this tutorial, we will learn to create a C program that will find Sum of GP using C programming.

Prerequisites

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

Basic C programming.
C Operators.
Basic input/output.
Loops.
For loop.

What Is geometric progression(GP)?

GP stands for geometric progression. It is defined as a Geometric Sequence of numbers each term is found by multiplying the previous term by a constant.

Example

This sequence has a factor of 2.Each term (except the first term) is found by multiplying the previous term by 2.

Generally we write a Geometric Sequence like that:
{a, ar, ar², ar³, … }
where:

a is the first term, and
r is the factor between the terms (called “common ratio”).

C Program To find Sum of GP Series

In this program we will find sum of GP series using for loop. We would first declared and initialized the required variables. Next, we would prompt user to input the number of terms. Later we will generate the GP series of specified number of terms.

#include <stdio.h>
#include<math.h>
int main ()
{
  int f, no, cr, temp, i;   //Variable Declaration
  float sum = 0;	    
  printf ("\nEnter First Number of an G.P Series:  ");
  scanf ("%d", &f);	    //First term<strong> of</strong> series.
  printf ("\nEnter the Total Numbers in this G.P Series:  ");
  scanf ("%d", &no);		//Total Numbers of terms 
  printf ("\nEnter the Common Ratio:  ");
  scanf ("%d", &cr);		//Common ratio
  temp = f;

  printf ("The G.P Series is  :  ");   //Printing the series
  for (i = 0; i < no; i++)
    {
      printf ("%d  ", temp);
      sum = sum + temp;		//Update the sum in each iteration
      temp = temp * cr;		 
    }
  printf ("\nSum of G P Series is =  %f\n", sum);
  return 0;
}

#include <stdio.h>

#include<math.h>

int main ()

{

int f, no, cr, temp, i; //Variable Declaration

float sum = 0;

printf ("\nEnter First Number of an G.P Series: ");

scanf ("%d", &f); //First term<strong> of</strong> series.

printf ("\nEnter the Total Numbers in this G.P Series: ");

scanf ("%d", &no); //Total Numbers of terms

printf ("\nEnter the Common Ratio: ");

scanf ("%d", &cr); //Common ratio

temp = f;

printf ("The G.P Series is : "); //Printing the series

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

{

printf ("%d ", temp);

sum = sum + temp; //Update the sum in each iteration

temp = temp * cr;

}

printf ("\nSum of G P Series is = %f\n", sum);

return 0;

}

Output

C Program To find Sum of GP Series

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

no = Total Numbers of terms to be printed
f = First term of series.
cr= common ratio.
sum= adding values of GP.
temp= holding temporary values.
i= for iteration.

In the next statement user will be prompted to enter the number of terms which will be assigned to variable ‘no’ and first value in variable f and common ratio in cr.

Now ,We will loop through the iterator ‘i’ up to the number of terms.Inside the for loop we are printing the value of temp variable and adding the sum of series in variable sum. When loop ends we print the sum of given gp. So in that way we find the sum of given gp number.

C Program To find sum of AP series

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In this tutorial, we will learn to create a C program that will find sum of AP Series using C programming.

Prerequisites

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

Basic C programming.
C loop statements
C for Loop.
Basic input/output.
Conditional statement.
If-else statement.

What Is Arithmetic Progression series?

A Series with same constant difference is known as arithmetic series. This constant is called common difference.The first element of series is a and constant difference is d. The series is looks like a, a + d, a + 2d, a + 3d,a+4d . . no.

Example.

If a=1 and d=3 and total_term=5

C Program To find sum of AP series

In this program we will print A.P series using for loop. We would first declared and initialized the required variables. Next, we would prompt user to input the number of terms. Later we will generate the A.P series of specified number of terms and sum of terms.

#include <stdio.h>
int main() {
    
    int a, total_no, d, final_term, i;
    int sum = 0;
    
    printf("Enter First Term of Series:  ");
    scanf("%d", &a);
    printf("Enter the Total Numbers in our Series:  ");
    scanf("%d", &total_no);
    printf("Enter the Common Difference:  ");
    scanf("%d", &d);
    // mathematical formal for A.P
    sum = (total_no * (2 * a + (total_no - 1) * d)) / 2;
    final_term = a + (total_no - 1) * d; // finding final term.
    printf("\n The Sum of Series A.P. : ");
    for(i = a; i <= final_term; i = i + d) // printing all values
    {
        if(i != final_term)  
            printf("%d + ", i);
        else
            printf("%d = %d", i, sum); // printing sum
    }
    printf("\n");
    return 0;
}

#include <stdio.h>

int main() {

int a, total_no, d, final_term, i;

int sum = 0;

printf("Enter First Term of Series: ");

scanf("%d", &a);

printf("Enter the Total Numbers in our Series: ");

scanf("%d", &total_no);

printf("Enter the Common Difference: ");

scanf("%d", &d);

// mathematical formal for A.P

sum = (total_no * (2 * a + (total_no - 1) * d)) / 2;

final_term = a + (total_no - 1) * d; // finding final term.

printf("\n The Sum of Series A.P. : ");

for(i = a; i <= final_term; i = i + d) // printing all values

{

if(i != final_term)

printf("%d + ", i);

else

printf("%d = %d", i, sum); // printing sum

}

printf("\n");

return 0;

}

Output

Formulas used

Sum of series:

Sum = Total_no/2(2 *a + (Total_no-1) d)

1	Sum = Total_no/2(2 *a + (Total_no-1) d)

Final_term of series:

Tn = a + (n-1) d

1	Tn = a + (n-1) d

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

Total_no= number of terms to be printed.
d = common difference.
final_term= Last term of series.
i= for iteration.
sum = adding sum of series.

In the next statement user will be prompt to enter the first term,common difference and total term in the series in following variable total_no,a,d .
The formula used in this program is.

Where Total_no is the last term of a finite sequence and d is common difference and sum the sum of Total_no terms.
Then, we will find the sum of the A.P Series. Here, we used Loop to display the A.P series.

You can see in image how series printing and showing the sum or series.

C Program To Count number of vowels in a string

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In this tutorial, we will learn to create a C program that will find the number of vowels in a string using C programming.

Prerequisites

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

Basic input/output.
loop statements.
for Loop.
Array.

What Is vowel ?

Let us take an example, in the following string “Education” there are five vowels ‘a’,’e’,’i’,’o’ and ‘u’. here in this program we check every character inputted by user in a string and find the number of vowel in it.

C Program To Count number of vowels in a string.

First of all In this program we take string from user,and with the help of array and loop we will find number of vowel in given string.

#include <stdio.h>
void main()
{
	char str[100];
	int len,i,vowel=0;
	printf("\nENTER A STRING: ");
	gets(str); // getting string from user
	len=strlen(str); // finding length of a string
	for(i=0;i<len;i++)
	{   // checking vowels in a string
        if(str[i]=='a' || str[i]=='e' || str[i]=='i' || str[i]=='o' || str[i]=='u' || str[i]=='A' || str[i]=='E' || str[i]=='I' || str[i]=='O' || str[i]=='U')
        vowel=vowel+1;
	}
	printf("\nThere are %d Vowels ian a given  String",vowel); //printing number of vowels
}

#include <stdio.h>

void main()

{

char str[100];

int len,i,vowel=0;

printf("\nENTER A STRING: ");

gets(str); // getting string from user

len=strlen(str); // finding length of a string

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

{ // checking vowels in a string

if(str[i]=='a' || str[i]=='e' || str[i]=='i' || str[i]=='o' || str[i]=='u' || str[i]=='A' || str[i]=='E' || str[i]=='I' || str[i]=='O' || str[i]=='U')

vowel=vowel+1;

}

printf("\nThere are %d Vowels ian a given String",vowel); //printing number of vowels

}

Output

C Program To Count number of vowels in a string

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

str = number of terms to be printed
len = counting length of string
vowel= for counting number of vowel
i= for iteration of loop.

Explanation.

In this program we will do following task step by step.

First of all we will take string as input.
then with help of strlen() function we find the length of a string.

Then check each character of the string to check as shown in above image.
If the string character is a vowel, increment the counter value of vowels.
Print the total number of vowels in the end.

C Program to Print small Alphabets a to z

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In this tutorial, we will learn to create a C program which will print small alphabet form a-z using C programming.

Prerequisites

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

c data type
C loops.
Basic input/output.

C Program to Print Alphabets from a-z(small)

In the following program with the help of for loop we will print alphabet form ‘a-z‘. Firstly we take a variable name ‘alpha‘ of type character .Then initialize loop form alpha=’a’ that will goes till alpha=’z’ and the structure of loop be like this

within the loop body print the value of alpha.

C Program to Print Alphabets from a-z(small).

In this program we will print value from a -z using for loop.
Firstly we declare required header file and variable. Next we print complete value form a-z using or loop.
Let’s take a have look.

#include<stdio.h>
int main()
{   
    char alpha; // Declaring the variable
    printf("Alphabets from a to z are :\n ");
    for (alpha ='a'; alpha <= 'z'; alpha++)    // Traversing each character
    {
	printf(" %c\t",alpha);	// Printing the alphabet from a-z
    }
    return 0;
    }

#include<stdio.h>

int main()

{

char alpha; // Declaring the variable

printf("Alphabets from a to z are :\n ");

for (alpha ='a'; alpha <= 'z'; alpha++) // Traversing each character

{

printf(" %c\t",alpha); // Printing the alphabet from a-z

}

return 0;

}

Output

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

alpha= for holding value from a-z.

Here we creating a program in which we print series from ‘a-z’

Here first we take a variable name alpha and Initialize loop variable from alpha=’a’, that goes till alpha=’z’ , then increment the loop each iteration by 1. The structure of loop look like this

within the loop we print the value of alpha and we will get the following series.

C Program to Print small Alphabets a to z

In this program, the loop display the English alphabet in lowercase.