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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() 
  5. {
  6. 	int n;
  7. 	cin>>n;
  8.  
  9. 	int **A = new int*[n]; 
  10. 	for (int i=0;i<n;i++)
  11.         A[i] = new int [n];
  12.  
  13.     int **B = new int*[n]; 
  14.     for (int i=0;i<n;i++)
  15.         B[i] = new int [n];
  16.  
  17.       int **C = new int*[n]; 
  18.     for (int i=0;i<n;i++)
  19.         C[i] = new int [n];
  20.  
  21.     for(int i=0;i<n;i++)
  22.     	for(int j=0;j<n;j++)
  23.     		cin>>A[i][j];
  24.  
  25.     for(int i=0;i<n;i++)
  26.     	for(int j=0;j<n;j++)
  27.     		cin>>B[i][j];
  28.  
  29.     for(int i=0;i<n;i++)
  30.     	for(int j=0;j<n;j++)
  31.     		{
  32.     			for(int k=0;k<n;k++)
  33.     			C[i][j]=C[i][j]+A[i][k]*B[k][j];
  34.     		}
  35.  
  36.  
  37.  
  38.     for(int i=0;i<n;i++)
  39.        {
  40.     	for(int j=0;j<n;j++)
  41.     		cout<<C[i][j]<<" ";
  42.     	cout<<"\n";
  43.        }
  44. 	return 0;
  45.  
  46. }
Success #stdin #stdout 0s 3232KB
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stdin
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2
1 2
3 4

1 2
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stdout
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7 10 
15 22
https://ideone.com/j6Qvgv
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
secret

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