C++ Program to Print Consecutive Rows Numbers in Right Triangle

Write a C++ program to print consecutive row numbers in the right triangle pattern using for loop.

#include<iostream>
using namespace std;

int main()
{
	int i, j, val, rows;
     
    cout << "Enter Right Triangle of Consecutive Row Nums = ";
    cin >> rows;

    cout << "Consecutive Row Numbers in a Right Triangle Pattern\n"; 
    for(i = 1; i <= rows; i++)
    {
        val = i;
    	for(j = 1; j <= i; j++)
		{
            cout << val << " ";
            val =val + rows - j;
        }
        cout << "\n";
    }		
 	return 0;
}

This C++ example prints the right angled triangle pattern of consecutive row numbers using a while loop.

#include<iostream>
using namespace std;

int main()
{
	int i, j, val, rows;
     
    cout << "Enter Right Triangle of Consecutive Row Nums = ";
    cin >> rows;

    cout << "Consecutive Row Numbers in a Right Triangle Pattern\n"; 
    i = 1;
    while(i <= rows)
    {
        val = i;
        j = 1;
    	while( j <= i)
		{
            cout << val << " ";
            val =val + rows - j;
            j++;
        }
        cout << "\n";
        i++;
    }		
 	return 0;
}

Enter Right Triangle of Consecutive Row Nums = 15
Consecutive Row Numbers in a Right Triangle Pattern
1 
2 16 
3 17 30 
4 18 31 43 
5 19 32 44 55 
6 20 33 45 56 66 
7 21 34 46 57 67 76 
8 22 35 47 58 68 77 85 
9 23 36 48 59 69 78 86 93 
10 24 37 49 60 70 79 87 94 100 
11 25 38 50 61 71 80 88 95 101 106 
12 26 39 51 62 72 81 89 96 102 107 111 
13 27 40 52 63 73 82 90 97 103 108 112 115 
14 28 41 53 64 74 83 91 98 104 109 113 116 118 
15 29 42 54 65 75 84 92 99 105 110 114 117 119 120