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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     int month;
  5.     char* day;
  6. 	printf("Please input a month number: ");
  7.     scanf("%d",&month);
  8.     printf("\n");
  9.     switch(month){
  10.     case 1:
  11.         day = "31";
  12.         break;
  13.     case 2:
  14.         day = "28/29";
  15.         break;
  16.     case 3:
  17.         day = "31";
  18.         break;
  19.     case 4:
  20.         day = "30";
  21.         break;
  22.     case 5:
  23.         day = "31";
  24.         break;
  25.     case 6:
  26.         day = "30";
  27.         break;
  28.     case 7:
  29.         day = "31";
  30.         break;
  31.     case 8:
  32.         day = "31";
  33.         break;
  34.     case 9:
  35.         day = "30";
  36.         break;
  37.     case 10:
  38.         day = "31";
  39.         break;
  40.     case 11:
  41.         day = "30";
  42.         break;
  43.     case 12:
  44.         day = "31";
  45.         break;
  46.     default:
  47.         printf("Invalid input");
  48.     }
  49.     printf(day);
  50. 	return 0;
  51. }
  52.  
Success #stdin #stdout 0s 5284KB
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Please input a month number: 
31
https://ideone.com/d318Rx
language:
C (clang 8.0)
created:
22 days ago
visibility:
public

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