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  1. #define M 4
  2. #define N 3
  3. #define Z M+N-1
  4.  
  5. int main(int argc, char const *argv[]) {
  6.  
  7.     int mat[M][N] = {
  8.         { 1,  2,  3},
  9.         { 4,  5,  6},
  10.         { 7,  8,  9},
  11.         {10, 11, 12}
  12.     };
  13.  
  14.     int result[Z] = {0};
  15.  
  16.     // z varia de 0 a M+N-1, exclusive
  17.     // Indica a linha na matriz resultados:
  18.     for (int z = 0; z < Z; z++) {
  19.  
  20.         // i varia de 0 a M, exclusive
  21.         // Indica a linha na matriz mat:
  22.         for (int i = 0; i < M; i++) {
  23.  
  24.             // j varia de 0 a N, exclusive
  25.             // Indica a coluna na matriz mat:
  26.             for (int j = 0; j < N; j++) {
  27.  
  28.                 // Se a soma da posição for igual a z:
  29.                 if (i + j == z) {
  30.  
  31.                     // Incrementa a soma:
  32.                     result[z] += mat[i][j];
  33.  
  34.                 }
  35.  
  36.             }
  37.  
  38.         }
  39.  
  40.         // Exibe o resultado da soma:
  41.         printf("%2d\n", result[z]);
  42.  
  43.     }
  44.  
  45.     return 0;
  46. }
Success #stdin #stdout 0s 9432KB
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https://ideone.com/AHoswV
language:
C (gcc 8.3)
created:
7 years ago
visibility:
secret

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