How to Reverse a String in C Language?

 In C language, you can reverse a string using the following steps:

1. Take the input string from the user.
2. Find the length of the string using the strlen() function.
3. Swap the first character with the last character, the second character with the second-last character, and so on until the middle of the string is reached.
4. Print the reversed string.

Here is an example program that reverses a string:

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

int main() {
    char str[100], temp;
    int i, j, len;

    printf("Enter a string: ");
    scanf("%s", str);

    len = strlen(str);

    for (i = 0, j = len - 1; i < j; i++, j--) {
        temp = str[i];
        str[i] = str[j];
        str[j] = temp;
    }

    printf("Reversed string: %s", str);

    return 0;
}

In this program, the input string is taken from the user using the scanf() function. The length of the string is calculated using the strlen() function. The for loop swaps the characters at the beginning and end of the string and works its way towards the middle. The reversed string is printed using the printf() function.