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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     int hour, minute;
  5.  
  6.     // Input: Hour and Minute in 24-hour format
  7.     printf("Enter time in 24-hour format (HH:MM): ");
  8.     scanf("%d:%d", &hour, &minute);
  9.  
  10.     // Check for invalid input
  11.     if (hour < 0 || hour > 24 || minute < 0 || minute >= 60) {
  12.         printf("Invalid time\n");
  13.         return 0;
  14.     }
  15.  
  16.     // Conversion logic
  17.     if (hour == 0) { // 00:00 in 24-hour -> 12:00 AM
  18.         printf("%02d:%02d AM\n", 12, minute);
  19.     } else if (hour == 12) { // 12:00 in 24-hour -> 12:00 PM
  20.         printf("%02d:%02d PM\n", 12, minute);
  21.     } else if (hour > 12 && hour < 24) { // 13-23 hours -> Subtract 12 and append PM
  22.         printf("%02d:%02d PM\n", hour - 12, minute);
  23.     } else if (hour < 12) { // 01-11 hours -> AM
  24.         printf("%02d:%02d AM\n", hour, minute);
  25.     } else if (hour == 24) { // 24:00 is 12:00 PM
  26.         printf("%02d:%02d PM\n", 12, minute);
  27.     }
  28.  
  29.     return 0;
  30. }
Success #stdin #stdout 0s 5276KB
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Standard input is empty
stdout
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Enter time in 24-hour format (HH:MM): Invalid time
https://ideone.com/CVdOjE
language:
C++ 4.3.2 (gcc-4.3.2)
created:
7 days ago
visibility:
public

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