AtCoder Beginner Contest 008

Submission #3980904

Source codeソースコード

#include "bits/stdc++.h"

using namespace std;

using ll = long long;
using ld = long double;

const double PI = 3.1415926535897932384626433832795;

const int dx[] = { 0, 1, 0, -1 };
const int dy[] = { -1, 0, 1, 0 };

int gcd(int x, int y) { return y ? gcd(y, x % y) : abs(x); }
ll gcd(ll x, ll y) { return y ? gcd(y, x % y) : abs(x); }
int lcm(int x, int y) { return x / gcd(x, y) * y; }
ll lcm(ll x, ll y) { return x / gcd(x, y) * y; }

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);

	int n;
	cin >> n;

	vector<int> c(n);
	for (auto &v : c) {
		cin >> v;
	}
	sort(begin(c), end(c));

	double ans = 0;
	for (int i = 0; i < n; i++) {
		int s = 0;
		for (int j = 0; j < n; j++) {
			if (i == j) {
				continue;
			}

			if (c[i] % c[j] == 0) {
				s++;
			}
		}
		ans += (s % 2 == 1 ? 0.5 : (s + 2.0) / (2 * s + 2.0));
	}

	printf("%.12lf\n", ans);
	return 0;
}

Submission

Task問題 C - コイン
User nameユーザ名 Ant
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 AC
Score得点 100
Source lengthソースコード長 920 Byte
File nameファイル名
Exec time実行時間 1 ms
Memory usageメモリ使用量 256 KB

Test case

Set

Set name Score得点 / Max score Cases
Sample - sample_01.txt,sample_02.txt,sample_03.txt
Subtask1 99 / 99 subtask1_01.txt,subtask1_02.txt,subtask1_03.txt,subtask1_04.txt,subtask1_05.txt,subtask1_06.txt,subtask1_07.txt,subtask1_08.txt,subtask1_09.txt,subtask1_10.txt,subtask1_11.txt,subtask1_12.txt,subtask1_13.txt,subtask1_14.txt,subtask1_15.txt,subtask1_16.txt,subtask1_17.txt,subtask1_18.txt,subtask1_19.txt,subtask1_20.txt
Subtask2 1 / 1 subtask1_01.txt,subtask1_02.txt,subtask1_03.txt,subtask1_04.txt,subtask1_05.txt,subtask1_06.txt,subtask1_07.txt,subtask1_08.txt,subtask1_09.txt,subtask1_10.txt,subtask1_11.txt,subtask1_12.txt,subtask1_13.txt,subtask1_14.txt,subtask1_15.txt,subtask1_16.txt,subtask1_17.txt,subtask1_18.txt,subtask1_19.txt,subtask1_20.txt,subtask2_01.txt,subtask2_02.txt,subtask2_03.txt,subtask2_04.txt,subtask2_05.txt,subtask2_06.txt,subtask2_07.txt,subtask2_08.txt,subtask2_09.txt,subtask2_10.txt,subtask2_11.txt,subtask2_12.txt,subtask2_13.txt,subtask2_14.txt,subtask2_15.txt,subtask2_16.txt,subtask2_17.txt,subtask2_18.txt,subtask2_19.txt,subtask2_20.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
sample_01.txt AC 1 ms 256 KB
sample_02.txt AC 1 ms 256 KB
sample_03.txt AC 1 ms 256 KB
subtask1_01.txt AC 1 ms 256 KB
subtask1_02.txt AC 1 ms 256 KB
subtask1_03.txt AC 1 ms 256 KB
subtask1_04.txt AC 1 ms 256 KB
subtask1_05.txt AC 1 ms 256 KB
subtask1_06.txt AC 1 ms 256 KB
subtask1_07.txt AC 1 ms 256 KB
subtask1_08.txt AC 1 ms 256 KB
subtask1_09.txt AC 1 ms 256 KB
subtask1_10.txt AC 1 ms 256 KB
subtask1_11.txt AC 1 ms 256 KB
subtask1_12.txt AC 1 ms 256 KB
subtask1_13.txt AC 1 ms 256 KB
subtask1_14.txt AC 1 ms 256 KB
subtask1_15.txt AC 1 ms 256 KB
subtask1_16.txt AC 1 ms 256 KB
subtask1_17.txt AC 1 ms 256 KB
subtask1_18.txt AC 1 ms 256 KB
subtask1_19.txt AC 1 ms 256 KB
subtask1_20.txt AC 1 ms 256 KB
subtask2_01.txt AC 1 ms 256 KB
subtask2_02.txt AC 1 ms 256 KB
subtask2_03.txt AC 1 ms 256 KB
subtask2_04.txt AC 1 ms 256 KB
subtask2_05.txt AC 1 ms 256 KB
subtask2_06.txt AC 1 ms 256 KB
subtask2_07.txt AC 1 ms 256 KB
subtask2_08.txt AC 1 ms 256 KB
subtask2_09.txt AC 1 ms 256 KB
subtask2_10.txt AC 1 ms 256 KB
subtask2_11.txt AC 1 ms 256 KB
subtask2_12.txt AC 1 ms 256 KB
subtask2_13.txt AC 1 ms 256 KB
subtask2_14.txt AC 1 ms 256 KB
subtask2_15.txt AC 1 ms 256 KB
subtask2_16.txt AC 1 ms 256 KB
subtask2_17.txt AC 1 ms 256 KB
subtask2_18.txt AC 1 ms 256 KB
subtask2_19.txt AC 1 ms 256 KB
subtask2_20.txt AC 1 ms 256 KB