C Program to reverse a string

               C PROGRAM TO REVERSE A STRING

Consider the following I/O samples to reverse a string.

SAMPLE INPUT: techtrendstract

SAMPLE OUTPUT: tcartsdnerthcet

The algorithm used here is :

1. Input the string
2. Find the length of the string
3. Swap the position of array element using loop
4. Store the swapped position
5. Print the reversed string.  

C PROGRAM:  

#include<stdio.h>

#include<string.h>

int main()

{

   char string [100], temp; // declaration of character variables

   int i, j = 0; // declaration of integer variable

   printf(" Enter the string to be reversed:");

   gets(string ); // string input

   i = 0;

   j = strlen(string ) - 1; // counting the length

   while (i < j) // for reversing string

   {

      temp = string [i];

      string [i] = string [j];

      string [j] = temp;

      i++;

      j--;

   }

   printf("\nThe Reversed string is :%s", string ); // Output

   return (0);

}

OUTPUT:

                     

The given source code in C program to Reverse a String is short and simple to understand. The source code is well tested in DEV-C++ and is completely error free. 

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