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  1.     #include <stdio.h>
  2.     #define POSSIBLE_POINTS_LENGTH 4
  3.  
  4.     int possiblePoints[POSSIBLE_POINTS_LENGTH] = { 3, 6, 7, 8 };
  5.  
  6.     int checkIfValid(int score)
  7.     {
  8.         int i, j;
  9.         if (score < 0) return 0;
  10.         for (i = 0; i < POSSIBLE_POINTS_LENGTH; ++i)
  11.         {
  12.             if (score % possiblePoints[i] == 0)
  13.             {
  14.                 return 1;
  15.             }
  16.             else
  17.             {
  18.                 for (j = 0; j < POSSIBLE_POINTS_LENGTH; ++j)
  19.                 {
  20.                     if (checkIfValid(score - possiblePoints[j]))
  21.                     {
  22.                         return 1;
  23.                     }
  24.                 }
  25.             }
  26.         }
  27.         return 0;
  28.     }
  29.  
  30.     int main(void) {
  31.         int score, isValid;
  32.         scanf("%d", &score);
  33.         isValid = checkIfValid(score);
  34.         if (isValid)
  35.         {
  36.             printf("Valid Score");
  37.         }
  38.         else
  39.         {
  40.             printf("Invalid Score");
  41.         }
  42.         return 0;
  43.     }
  44.  
Success #stdin #stdout 0s 2296KB
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Valid Score
https://ideone.com/Zlr0iI
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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