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  1.     #include <iostream>
  2.     using namespace std;
  3.  
  4.     int main() {
  5.     	int n;
  6.     	cin>>n;
  7.     	double x[n][n],y[n][n],z[n][n],mu=0;
  8.     	for (int i = 0; i < n; i++){
  9.     		for (int j = 0; j < n; j++){
  10.     			cin>>x[i][j];
  11.     			y[j][i]=x[i][j];
  12.     		}
  13.     	}
  14.     	for (int i = 0; i < n; i++){
  15.     		for (int j = 0; j < n; j++){
  16.     			for (int p = 0; p < n; p++){	
  17.     				mu += x[i][p]*y[p][j];
  18.     			}
  19.     			z[i][j] = mu;
  20.     			mu = 0;
  21.     		}
  22.     	}
  23.     	for (int i = 0; i < n; i++){
  24.     		for (int j = 0; j < n; j++){
  25.     			cout<<z[i][j]<<" ";
  26.     		}
  27.     		cout<<endl;
  28.     	}
  29.     }
  30.  
  31.  
Success #stdin #stdout 0s 3464KB
comments (?)
stdin
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4
1 2 3 4
5 6 7 8
9 0 1 2
3 4 5 6
stdout
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30 70 20 50 
70 174 68 122 
20 68 86 44 
50 122 44 86
https://ideone.com/iXjoLZ
Умножение матрицы на транспонированную
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
secret

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