Sum By Columns With Random Numbers

  ////////////////////////////////////////////////////////////////////////
 // Задачата събира матрицата по колони и извежда сумата под колоната. //
////////////////////////////////////////////////////////////////////////
#include <iostream>
#include <ctime>

using namespace std;

int main() {
  srand(time(0));
  int matrix[2][7];
  int sum_columns[7];

  for (size_t i = 0; i < 2; i++) {
    for (size_t j = 0; j < 7; j++) {
        matrix[i][j] = rand() % (9 - 1);
    }
  }

  for (size_t j = 0; j < 7; j++) {
    sum_columns[j] = 0;
    for (size_t i = 0; i < 2; i++) {
      sum_columns[j] = sum_columns[j] + matrix[i][j];
    }
  }

  for (size_t i = 0; i < 2; i++) {
    for (size_t j = 0; j < 7; j++) {
        cout << matrix[i][j] << "   ";
    }
    cout << endl;
  }

  for (size_t i = 0; i < 7; i++) {
    cout << sum_columns[i] << "   ";
  }

    return 0;
}