Question

How to print a right-angled triangle of numbers in C++

Answer 1

#include <iostream>

void print_right_angled_triangle_of_numbers(int n) {
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= i; j++) {
            std::cout << j << " ";
        }
        std::cout << "\n";
    }
}
    
int main(void)
{
    int n = 7;
     
    print_right_angled_triangle_of_numbers(n);
}



/*
run:

1 
1 2 
1 2 3 
1 2 3 4 
1 2 3 4 5 
1 2 3 4 5 6 
1 2 3 4 5 6 7 
  
*/

 

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