Reverse a String In-Place

Code

#include <stdio.h>

void reverse_string(char *str) {
    // Your logic here
    char tmp;
    char* s = str;
    char* e = str;
    while (0 != *e) { e++; }
    e--;
    while (s < e) {
        tmp = *s;
        *s = *e;
        *e = tmp;
        s++;
        e--;
    }
}

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

My logic is similar to the solution