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  1. #include <stdio.h>
  2.  
  3. int main(void)
  4. {
  5.     int month;
  6.     int day;
  7.     int year;
  8.  
  9.     const char *months[12] =
  10.     {
  11.         "January",
  12.         "February",
  13.         "March",
  14.         "April",
  15.         "May",
  16.         "June",
  17.         "July",
  18.         "August",
  19.         "September",
  20.         "October",
  21.         "November",
  22.         "December"
  23.     };
  24.  
  25.     printf("Enter date in the form mm/dd/yyyy: ");
  26.     scanf("%d/%d/%d", &month, &day, &year);
  27.  
  28.     if (month >= 1 && month <= 12 &&
  29.         day >= 1 && day <= 31)
  30.     {
  31.         printf("%s %d, %d\n",
  32.                months[month - 1],
  33.                day,
  34.                year);
  35.     }
  36.     else
  37.     {
  38.         printf("Invalid date.\n");
  39.     }
  40.  
  41.     return 0;
  42. }
Success #stdin #stdout 0s 5356KB
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stdin
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Standard input is empty
stdout
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Enter date in the form mm/dd/yyyy: Invalid date.
https://ideone.com/qmHVfS
language:
C (gcc 8.3)
created:
1 hour ago
visibility:
public

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