EASY LEVEL (1–10)

1. Print numbers from 1 to N

Problem:

Given an integer N, print numbers from 1 to N using a while loop.

Example:

Input:5
Output:
12345

1. Print numbers from N to 1

Input:5
Output:
54321

1. Print all even numbers up to N

Input:10
Output:
246810

1. Print all odd numbers up to N

Input:10
Output:
13579

1. Find sum from 1 to N

Input:5
Output:
15

1. Print multiplication table of N