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  1. #include <stdio.h>
  2.  
  3. void cal_array(const int (*x)[3], const int (*y)[2], const int (*z)[2], int (*ans)[2]) {
  4.     for (int i = 0; i < 2; i++) {        
  5.         for (int j = 0; j < 2; j++) {    
  6.             ans[i][j] = z[i][j];         
  7.             for (int k = 0; k < 3; k++) {
  8.                 ans[i][j] += x[i][k] * y[k][j];
  9.             }
  10.         }
  11.     }
  12. }
  13. int main(void) {
  14.     int x[2][3] = {
  15.         {1, 2, 3},
  16.         {4, 5, 6}
  17.     };
  18.     int y[3][2] = {
  19.         {6, 5},
  20.         {4, 3},
  21.         {2, 1}
  22.     };
  23.     int z[2][2] = {
  24.         {10, 4},
  25.         {6, 9}
  26.     };
  27.     int ans[2][2];
  28.     cal_array(x, y, z, ans);
  29.     printf("計算結果:\n");
  30.     for (int i = 0; i < 2; i++) {
  31.         for (int j = 0; j < 2; j++) {
  32.             printf("%d ", ans[i][j]);
  33.         }
  34.         printf("\n");
  35.     }
  36.     return 0;
  37. }
Success #stdin #stdout 0.01s 5308KB
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stdin
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Standard input is empty
stdout
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計算結果:
30 18 
62 50
https://ideone.com/jSNheC
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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