// Demonstration of nested while loops
// Written by: Angela Finlayson
// Date: 19/09/2024
//
// Print time
//
// hh:mm:ss
// Note that %02d means to pad an integer with leading 0s to make sure it
// is at least 2 digits

#include <stdio.h>
#define MAX_HOURS 24
#define MAX_MINUTES 60
#define MAX_SECONDS 60

int main(void) { 
    int hours = 0;                    
    while (hours < MAX_HOURS) {
        int minutes = 0;              
        while (minutes < MAX_MINUTES) {
            int seconds = 0;
            while (seconds < MAX_SECONDS) {
                printf("%02d:%02d:%02d\n", hours, minutes, seconds);
                seconds = seconds + 1;
            }
            minutes = minutes + 1;
        }
        hours = hours + 1;
    }

    return 0;
}