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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. void printMin(int n, double* mat){
  5. 	std::cout <<"min: \n";
  6. 	for(int i = 0; i < n; ++i)
  7. 		std::cout << mat[i] << " ";
  8. 	std::cout << "\n";
  9. }
  10.  
  11. int main()
  12. {
  13.    int n,d;
  14.    do {
  15.     cout << "Vvedite n: ";
  16.     cin >> n;
  17.     d=(n>0);
  18.     if (d) break;
  19.     printf("  Vvedite zanovo!\n  ");
  20. }
  21. while (1);
  22.    double A[n][n] = {};
  23.    double min[n] = {};
  24.    double u = 0;
  25.  
  26.    for (int i = 0; i < n; i++) {
  27.        for (int j = 0; j < n; j++) {
  28.            cout << "Vvedite A["<<i<<"]["<<j<<"]: ";
  29.             cin >> A[i][j];
  30.        }
  31.    }
  32.  
  33. 	std::cout <<"matrica: \n";
  34. 	for(int i = 0; i < n; ++i){
  35. 		for(int j = 0; j < n; ++j)
  36. 			std::cout << A[i][j] << " ";
  37. 		std::cout << "\n";
  38. 	}
  39.  
  40.  for (int j = 0; j < n; j++) {
  41.        min[j] = A[0][j];
  42.    }
  43.  
  44.    for (int j = 0; j < n; j++) {
  45.        for (int i = 0; i < n; i++) {
  46.            if (A[i][j] < min[j])
  47.                min[j] = A[i][j];
  48.        }
  49.    }
  50.  
  51. 	printMin(n, min);
  52.  
  53.  
  54.    for (int i = 0; i < n; i++) {
  55.        u += min[i]*min[n - i - 1];
  56.    }
  57. cout << "U = ";
  58.    cout << u << endl;
  59.  
  60.    return 0;
  61. }
Success #stdin #stdout 0.01s 5520KB
comments (?)
stdin 
3
3 9 2 
8 5 1
4 7 6
stdout 
Vvedite n: Vvedite A[0][0]: Vvedite A[0][1]: Vvedite A[0][2]: Vvedite A[1][0]: Vvedite A[1][1]: Vvedite A[1][2]: Vvedite A[2][0]: Vvedite A[2][1]: Vvedite A[2][2]: matrica: 
3 9 2 
8 5 1 
4 7 6 
min: 
3 5 1 
U = 31
https://ideone.com/vAdcSG
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
secret

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