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  1. #include <stdio.h>
  2.  
  3. #define M 2   // 行数
  4. #define N 3   // 列数
  5.  
  6. void add(int *A, int *B, int *C, int m, int n){
  7.     int i, j;
  8.  
  9.     for(i = 0; i < m; i++){
  10.         for(j = 0; j < n; j++){
  11.             *(C + i*n + j) = *(A + i*n + j) + *(B + i*n + j);
  12.         }
  13.     }
  14. }
  15.  
  16. int main(void){
  17.  
  18.     int A[M][N] = {{1,2,3},{4,5,6}};
  19.     int B[M][N] = {{6,5,4},{3,2,1}};
  20.     int C[M][N] = {{0,0,0},{0,0,0}};
  21.  
  22.     int i, j;
  23.  
  24.     add((int *)A, (int *)B, (int *)C, M, N);
  25.  
  26.     for(i = 0; i < M; i++){
  27.         for(j = 0; j < N; j++){
  28.             printf("%d ", C[i][j]);
  29.         }
  30.         printf("\n");
  31.     }
  32.  
  33.     return 0;
  34. }
Success #stdin #stdout 0s 5320KB
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Standard input is empty
stdout
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7 7 7 
7 7 7
https://ideone.com/wrvEc7
language:
C (gcc 8.3)
created:
4 hours ago
visibility:
public

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