[SWEA] 제곱수 만들기

 

 

[문제]

https://swexpertacademy.com/main/code/problem/problemDetail.do?contestProbId=AXWXH_h695kDFAST

SW Expert Academy

 

 

[소스 코드]

import java.io.*;
import java.util.*;
public class Solution {
	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int T = Integer.parseInt(br.readLine());
		for(int tc=1;tc<=T;tc++) {
			int n = Integer.parseInt(br.readLine());
			int result = 1;
			for(int i=2;i<=Math.sqrt(n);i++) {
				int cnt = 0;
				while(n%i==0) {
					n /= i;
					cnt++;
				}
				if(cnt%2!=0) {
					result *= i;
				}
			}
			if(n!=1) {
				result *= n;
			}
			System.out.println("#"+tc+" "+result);
		}
	}
}