P065.c

Metadata

• Author — Amit Dutta (amitdutta4255@gmail.com)
• Last updated — 12 Jan 2026
• License — MIT

Problem Statement

Problem Statement

Write a program to reverse a string

Source Code

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void str_rev(char[]);

int main()
{
    char str[101];
    printf("Enter the string (Max: 100 Character): ");
    gets(str);
    printf("\nBefore Reverse: %s", str);
    str_rev(str);
    printf("\nAfter Reverse: %s", str);
    return 0;
}

void str_rev(char str[])
{
    int i, j;
    char temp;
    i = 0;
    j = strlen(str) - 1; // not taking the null
    while (i < j)
    {
        temp = str[i];
        str[i] = str[j];
        str[j] = temp;
        i++;
        j--;
    }
}