結果
問題 | No.488 四角関係 |
ユーザー |
|
提出日時 | 2017-02-24 22:50:48 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 36 ms / 5,000 ms |
コード長 | 3,286 bytes |
コンパイル時間 | 1,071 ms |
コンパイル使用メモリ | 113,108 KB |
実行使用メモリ | 28,728 KB |
最終ジャッジ日時 | 2025-01-02 23:29:21 |
合計ジャッジ時間 | 2,814 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 22 |
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc) Copyright (C) Microsoft Corporation. All rights reserved.
ソースコード
using System;using System.Collections.Generic;using System.Linq;using System.IO;using System.Globalization;using System.Diagnostics;using static System.Console;using Pair = System.Collections.Generic.KeyValuePair<int, int>;class Program{static void Main(){SetOut(new StreamWriter(OpenStandardOutput()) { AutoFlush = false });new Program().Solve();Out.Flush();}Scanner cin = new Scanner();Random rnd = new Random();Stopwatch sw = new Stopwatch();readonly int[] dd = { 0, 1, 0, -1, 0 };readonly int mod = 1000000007;readonly string alfa = "abcdefghijklmnopqrstuvwxyz";int N, M;void Solve(){N = cin.Nextint; M = cin.Nextint;var B = new bool[N, N];for (int i = 0; i < M; i++){int a = cin.Nextint, b = cin.Nextint;B[a, b] = true;B[b, a] = true;}int cnt = 0;for (int i = 0; i < N; i++){for (int j = i + 1; j < N; j++){for (int k = j + 1; k < N; k++){for (int l = k + 1; l < N; l++){if (B[i, j]){if (B[j, k] && B[k, l] && B[l, i]){if (!B[i, k] && !B[j, l]){cnt++;}}else if (B[j, l] && B[l, k] && B[k, i]){if (!B[i, l] && !B[j, k]){cnt++;}}}else if (B[i, l]){if (B[l, j] && B[j, k] && B[k, i]){if (!B[i, j] && !B[k, l]){cnt++;}}}}}}}WriteLine(cnt);}}class Scanner{string[] s; int i;char[] cs = new char[] { ' ' };public Scanner() { s = new string[0]; i = 0; }public string[] Scan { get { return ReadLine().Split(); } }public int[] Scanint { get { return Array.ConvertAll(Scan, int.Parse); } }public long[] Scanlong { get { return Array.ConvertAll(Scan, long.Parse); } }public double[] Scandouble { get { return Array.ConvertAll(Scan, double.Parse); } }public string Next{get{if (i < s.Length) return s[i++];string st = ReadLine();while (st == "") st = ReadLine();s = st.Split(cs, StringSplitOptions.RemoveEmptyEntries);i = 0;return Next;}}public int Nextint { get { return int.Parse(Next); } }public long Nextlong { get { return long.Parse(Next); } }public double Nextdouble { get { return double.Parse(Next); } }}