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

int main() {
	char str[] = "abcde";
	for (int start = 0, len = strlen(str), lim = len / 2; start < lim; start++) {
		int end = len - start - 1;
		
		char temp = str[start];
		str[start] = str[end];
		str[end] = temp;
	}

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