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  1.  
  2. #include <stdio.h>
  3.  
  4. int prefixSum[1005][1005];
  5.  
  6. int main() {
  7.     int M, N;
  8.  
  9.  
  10.     if (scanf("%d %d", &M, &N) != 2) return 0;
  11.  
  12.     for (int i = 1; i <= M; i++) {
  13.         for (int j = 1; j <= N; j++) {
  14.             scanf("%d", &prefixSum[i][j]);
  15.         }
  16.     }
  17.  
  18.     int B, K;
  19.     int isFirst = 1; 
  20.  
  21.     while (scanf("%d", &B) == 1) {
  22.         if (B == -9) {
  23.             break;
  24.         }
  25.  
  26.         scanf("%d", &K);
  27.  
  28.         int originalValue = prefixSum[B][K] 
  29.                           - prefixSum[B - 1][K] 
  30.                           - prefixSum[B][K - 1] 
  31.                           + prefixSum[B - 1][K - 1];
  32.  
  33.         if (!isFirst) {
  34.             printf(" ");
  35.         }
  36.         printf("%d", originalValue);
  37.         isFirst = 0;
  38.     }
  39.     printf("\n");
  40.  
  41.     return 0;
  42. }
  43.  
Success #stdin #stdout 0s 5284KB
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https://ideone.com/RWN3XO
language:
C (gcc 8.3)
created:
15 hours ago
visibility:
public

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