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

void reverseString(char* s, int sSize){
    int end = sSize - 1;
    int start = 0;
    char temp;
    while (end > start) {
        temp = s[start];
        s[start++] = s[end];
        s[end--] = temp;
    }
}

int main() {
    printf("Expected: olleH\n");
    char str[] = "Hello";
    reverseString(str, 5);
    printf("Got: %s\n", str);
    return 0;
}