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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int main ()
  4. {
  5.     int a[3][3]={ {-1,2,-3},
  6.                 {0,2,7},
  7.                 {2,-2,5}
  8.     };
  9.  
  10.     int b[3][3]={ {-1,9,-6},
  11.                 {0,6,8},
  12.                 {5-8,4}
  13.     };
  14.  
  15.     int c[3][3]={0};
  16.     for(int i=0;i<3;i++){
  17.     for(int j=0;j<3;j++){
  18.         for(int k=0;k<3;k++){
  19.             c[i][j]+=a[i][k]*b[k][j];
  20.         }
  21.     }
  22.     }
  23.     cout<<"Matrix A: "<<endl;
  24.     for(int i=0;i<3;i++){
  25.         for(int j=0;j<3;j++){
  26.             cout<<a[i][j]<<" ";
  27.         }
  28.         cout<<endl;
  29.     }
  30.     cout<<"Matrix B: "<<endl;
  31.     for(int i=0;i<3;i++){
  32.         for(int j=0;j<3;j++){
  33.             cout<<b[i][j]<<" ";
  34.         }
  35.         cout<<endl;
  36.     }
  37.     cout<<"Matrix c= "<<endl;
  38.     for(int i=0;i<3;i++){
  39.         for(int j=0;j<3;j++){
  40.             cout<<c[i][j]<<" ";
  41.         }
  42.         cout<<endl;
  43.     }
  44. }
  45.  
Success #stdin #stdout 0s 5276KB
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stdin
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Standard input is empty
stdout
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Matrix A: 
-1 2 -3 
0 2 7 
2 -2 5 
Matrix B: 
-1 9 -6 
0 6 8 
-3 4 0 
Matrix c= 
10 -9 22 
-21 40 16 
-17 26 -28
https://ideone.com/tZA7Mw
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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