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Codeforces Round #762 (Div. 3) B. Squares and Cubes

2022-01-01 19:00:27  阅读:205  来源: 互联网

标签:Cubes 762 Codeforces number int likes test integer Polycarp


题目链接:Problem - B - Codeforces

Polycarp likes squares and cubes of positive integers. Here is the beginning of the sequence of numbers he likes: 1, 4, 8, 9, ....

For a given number n, count the number of integers from 1 to n that Polycarp likes. In other words, find the number of such x that x is a square of a positive integer number or a cube of a positive integer number (or both a square and a cube simultaneously).

Input

The first line contains an integer t (1≤t≤20) — the number of test cases.

Then tt lines contain the test cases, one per line. Each of the lines contains one integer nn (1≤n≤109).

Output

For each test case, print the answer you are looking for — the number of integers from 1 to nn that Polycarp likes.

Example

input

Copy

6
10
1
25
1000000000
999999999
500000000

output

Copy

4
1
6
32591
32590
23125

题意:从1到n之间有几个平方数和立方数

思路:将所有的平方数和立方数都压入set,然后遍历一遍即可

#include<bits/stdc++.h>
using namespace std;
#define ll long long
set<ll> se;

int main(){
	ios::sync_with_stdio(false);
	for(ll i = 1; i * i <= 1000000000; i++){
		se.insert(i * i);
	}
	for(ll i = 1; i * i * i <= 1000000000; i++){
		se.insert(i * i * i);
	}
	int t;
	cin >> t;
	int n;
	while(t--){
		cin >> n;
		int ans = 0;
		for(auto i : se){
			if(n >= i){
				ans++;
			}else{
				break;
			}
		}
		cout << ans << endl;
	}
	return 0;
}

标签:Cubes,762,Codeforces,number,int,likes,test,integer,Polycarp
来源: https://blog.csdn.net/m0_55682843/article/details/122269711

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