HackerRank - Algorithms - Warmup - Time Conversion

timeconversion.c

#include <math.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include <stdbool.h>

int main(void)
{
    int hours, minutes, seconds;
    char time[3];
    scanf("%d:%d:%d%s", &hours, &minutes, &seconds, time);
    
    if (hours < 12 && (strcmp("PM",time) == 0))
    {
        hours += 12;
    }
    if (hours == 12 && (strcmp("AM",time) == 0))
    {
        hours = 0;
    }
    
    printf("%02d:%02d:%02d", hours, minutes, seconds);
    return 0;
}