Answer 1

I did it like this in C👇🏻
Check if this Works:

#include <stdio.h>

int main (void)
{
int h, m;
char time;
scanf ("%d:%d %c", &h, &m, &time);

if (h==12 && (time=='A' || time=='a')) h=0;
else if (h!=12 && (time=='P' || time=='p')) h+=12;
printf("%02d:%02d\n", h, m);

return 0;
}

Hope this helps😊