Squares
Given a positive integer n, your task is to find all the numbers that are greater than or equal to 1 and their squares don’t exceed n. The program should print the squares of those numbers.
Input  | Output  | 
|---|---|
15  | 1 4 9  | 
16  | 1 4 9 16  | 
Constraints
Time limit: 2 seconds
Memory limit: 512 MB
Output limit: 1 MB