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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     int mat1[2][2] = {
  5.         {1, 2},
  6.         {3, 4}
  7.     };
  8.  
  9.     int mat2[2][2] = {
  10.         {5, 6},
  11.         {7, 8}
  12.     };
  13.  
  14.     int sum[2][2], diff[2][2];
  15.  
  16.     // 和と差の計算
  17.     for (int i = 0; i < 2; i++) {
  18.         for (int j = 0; j < 2; j++) {
  19.             sum[i][j] = mat1[i][j] + mat2[i][j];
  20.             diff[i][j] = mat1[i][j] - mat2[i][j];
  21.         }
  22.     }
  23.  
  24.     // 結果の表示
  25.     printf("Sum:\n");
  26.     for (int i = 0; i < 2; i++) {
  27.         for (int j = 0; j < 2; j++) {
  28.             printf("%d ", sum[i][j]);
  29.         }
  30.         printf("\n");
  31.     }
  32.  
  33.     printf("Difference:\n");
  34.     for (int i = 0; i < 2; i++) {
  35.         for (int j = 0; j < 2; j++) {
  36.             printf("%d ", diff[i][j]);
  37.         }
  38.         printf("\n");
  39.     }
  40.  
  41.     return 0;
  42. }
Success #stdin #stdout 0s 5288KB
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stdin
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Standard input is empty
stdout
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Sum:
6 8 
10 12 
Difference:
-4 -4 
-4 -4
https://ideone.com/KqZrhM
language:
C (gcc 8.3)
created:
137 days ago
visibility:
secret

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