зад

#include <iostream>

using namespace std;

int main() {
  double C[4][4];

  for (int i = 0; i < 4; i++) {
    for (int j = 0; j < 4; j++) {
      cout << "Enter C[" << i << "][" << j << "]: ";
      cin >>C[i][j];
    }
  }

  double min[4] = {C[0][0], C[0][1], C[0][2], C[0][3]};

  for (int i = 0; i < 4; i++) {
    for (int j = 0; j < 4; j++) {
      if(C[i][0] < min[0])
        min[0] = C[i][0];

      if(C[i][1] < min[1])
        min[1] = C[i][1];

      if(C[i][2] < min[2])
        min[2] = C[i][2];

      if(C[i][3] < min[3])
        min[3] = C[i][3];

      cout << C[i][j] << "  ";
    }
    cout << endl;
  }

  for (int i = 0; i < 4; i++) {
    cout << min[i] << "  ";
  }

  return 0;
}