Reverse a String In-Place

Code

#include <stdio.h>

void reverse_string(char *str) {
    // Your logic here
    char tmp; // temporary var
    char *left = str; // Pointer to begining of string
    int n =0; // String length counter
    while(str[n] !='\0'){
        str;
        n++;
    }
   char *right = left + (n-1); // pointer to end of string
    while ( left < right){ //swap right value with left
        tmp = *left;
        *left = *right;
        *right = tmp;
        left++;
        right--;
    }
    
}

int main() {
    char str[101];
    fgets(str, sizeof(str), stdin);

    // Remove newline
    int i = 0;
    while (str[i] != '\0') {
        if (str[i] == '\n') {
            str[i] = '\0';
            break;
        }
        i++;
    }

    reverse_string(str);
    printf("%s", str);
    return 0;
}

Solving Approach