結果
問題 | No.507 ゲーム大会(チーム決め) |
ユーザー | AreTrash |
提出日時 | 2019-01-17 12:43:55 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,156 bytes |
コンパイル時間 | 1,596 ms |
コンパイル使用メモリ | 119,340 KB |
実行使用メモリ | 32,916 KB |
最終ジャッジ日時 | 2024-07-01 06:57:10 |
合計ジャッジ時間 | 4,522 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 32 ms
25,220 KB |
testcase_01 | AC | 31 ms
25,088 KB |
testcase_02 | AC | 33 ms
27,028 KB |
testcase_03 | WA | - |
testcase_04 | AC | 33 ms
25,000 KB |
testcase_05 | AC | 32 ms
27,004 KB |
testcase_06 | AC | 31 ms
27,156 KB |
testcase_07 | AC | 133 ms
32,652 KB |
testcase_08 | WA | - |
testcase_09 | AC | 124 ms
30,740 KB |
testcase_10 | AC | 123 ms
30,612 KB |
testcase_11 | AC | 109 ms
32,536 KB |
testcase_12 | AC | 124 ms
30,628 KB |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | AC | 31 ms
23,220 KB |
testcase_20 | WA | - |
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.IO; using System.Collections.Generic; using System.Linq; namespace No507 { public class Program { int N; int M; int K; int[] A; void Solve(StreamScanner ss, StreamWriter sw) { //--------------------------------- N = ss.Next(int.Parse); M = ss.Next(int.Parse); K = ss.Next(int.Parse); A = ss.Next(int.Parse, N - 1).OrderByDescending(x => x).ToArray(); var ret = BinarySearch.LowerBound(CountStrongPairs, M, 0, A.Length) - 1; sw.WriteLine(ret == -1 ? ret : A[ret]); //--------------------------------- } int CountStrongPairs(long index) { var ret = 0; var right = A.Length - 1; for (var left = 0; left < A.Length; left++) { if (left == index) continue; if (left >= right) break; for (; left < right; right--) { if (right == index || A[right] + A[left] <= A[index] + K) continue; ret++; break; } } return ret; } static void Main() { var ss = new StreamScanner(new StreamReader(Console.OpenStandardInput())); var sw = new StreamWriter(Console.OpenStandardOutput()) {AutoFlush = false}; new Program().Solve(ss, sw); sw.Flush(); } static readonly Func<string, string> String = s => s; } public static partial class BinarySearch { static long BoundToTheRight(Func<long, bool> pred, long left, long right) { if (left > right) throw new ArgumentException("left must <= right"); while (true) { if (left == right) return right; var mid = (left + right - 1) / 2; if (pred(mid)) right = mid; else left = mid + 1; } } public static long LowerBound<T>(Func<long, T> func, T value, long left, long right) where T : IComparable<T> { return BoundToTheRight(x => func(x).CompareTo(value) >= 0, left, right); } public static long UpperBound<T>(Func<long, T> func, T value, long left, long right) where T : IComparable<T> { return BoundToTheRight(x => func(x).CompareTo(value) > 0, left, right); } public static int LowerBound<T>(this T[] source, T value) where T : IComparable<T> { return (int)LowerBound(x => source[x], value, 0, source.Length); } public static int UpperBound<T>(this T[] source, T value) where T : IComparable<T> { return (int)UpperBound(x => source[x], value, 0, source.Length); } public static int Range<T>(this T[] source, T vLeft, T vRight) where T : IComparable<T> { return source.UpperBound(vRight) - source.LowerBound(vLeft); } } public class StreamScanner { static readonly char[] Sep = {' '}; readonly Queue<string> buffer = new Queue<string>(); readonly TextReader textReader; public StreamScanner(TextReader textReader) { this.textReader = textReader; } public T Next<T>(Func<string, T> parser) { if (buffer.Count != 0) return parser(buffer.Dequeue()); var nextStrings = textReader.ReadLine().Split(Sep, StringSplitOptions.RemoveEmptyEntries); foreach (var nextString in nextStrings) buffer.Enqueue(nextString); return Next(parser); } public T[] Next<T>(Func<string, T> parser, int x) { var ret = new T[x]; for (var i = 0; i < x; ++i) ret[i] = Next(parser); return ret; } public T[][] Next<T>(Func<string, T> parser, int x, int y) { var ret = new T[y][]; for (var i = 0; i < y; ++i) ret[i] = Next(parser, x); return ret; } } }