Answer to Question #329464 in C++ for Jack

Question

Write a program to find the table of numbers using a while loop. Your program should ask the size of the table. That size defines the rows and columns. Sample output:

IT must be done using WHILE loop.

Enter size: 6

1 2 3 4 5 6

------------------------------------------

1* 1 2 3 4 5 6

2* 2 4 6 8 10 12

3* 3 6 9 12 15 18

4* 4 8 12 16 20 24

5* 5 10 15 20 25 30

6* 6 12 18 24 30 36

Answer 1

#include <iostream>

int main() {
  int table_size;

  std::cout << "Enter size: ";
  std::cin >> table_size;
  
  int i = 1;
  while (i <= table_size) {
    std::cout << i << ' ';
    ++i;
  }

  std::cout << std::endl;
  std::cout << "------------------------------------------";
  std::cout << std::endl;

  int row = 1, col = 1;
  while (row <= table_size) {
    if (col == 1) {
      std::cout << row << "* "; 
    }
    
    std::cout << row * col << ' ';

    if (col == table_size) {
      ++row;
      col = 1;

      std::cout << std::endl;
    } else {
      ++col; 
    } 
  }
  return 0;
}