93. Reverse a String In-Place

#include <stdio.h>

void reverse_string(char *str) {
    // Your logic here
    char *b, *e, c;
    b = str;
    e = str;
    while (*e != '\0'){
        e++;
    }
    e--;
    while (b<e){
        c = *b;
        *b = *e;
        *e = c;
        b++;
        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;
}