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  1. #include <stdio.h>
  2. main()
  3. {
  4.   int A[2][3], B[3][4], C[2][4];
  5.   int i, j, k;
  6.  
  7.   for (i = 0; i < 2; i++)
  8.     for (j = 0; j < 3; j++)
  9.       scanf("%d", &(A[i][j]));
  10.   for (i = 0; i < 3; i++)
  11.     for (j = 0; j < 4; j++)
  12.       scanf("%d", &(B[i][j]));
  13.   for (i = 0; i < 2; i++)
  14.     for (j = 0; j < 4; j++)
  15.       C[i][j] = 0;
  16.  
  17.   for (i = 0; i < 2; i++)
  18.     for (j = 0; j < 4; j++)
  19.       for (k = 0; k < 3; k++)
  20. 	C[i][j] += A[i][k] * B[k][j];
  21.  
  22.   for (i = 0; i < 2; i++){
  23.     for (j = 0; j < 4; j++)
  24.       printf("%4d ", C[i][j]);
  25.     printf("\n");
  26.   }   
  27.   return 0;    
  28. }
  29.  
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
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4 6 2
7 8 3
5 8 2 5
6 7 4 2
7 6 5 4
stdout
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  70   86   42   40 
 104  130   61   63
https://ideone.com/3sdNpr
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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