結果
問題 | No.587 七対子 |
ユーザー |
|
提出日時 | 2020-06-30 05:15:21 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 33 ms / 2,000 ms |
コード長 | 7,475 bytes |
コンパイル時間 | 1,130 ms |
コンパイル使用メモリ | 112,000 KB |
実行使用メモリ | 19,072 KB |
最終ジャッジ日時 | 2024-07-19 20:14:05 |
合計ジャッジ時間 | 3,308 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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ファイルパターン | 結果 |
---|---|
other | AC * 35 |
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;using System.Numerics;namespace AtCoder.Contest.A{static class Program{public static void Solve(Scanner cin){var s = cin.ReadString().ToCharArray();Array.Sort(s);var p = s.Distinct();bool ok = true;int c = 0;char ans = ' ';foreach (var e in p){var t = s.Count(x => x == e);if (t > 2) ok = false;else if (t == 1){c++;ans = e;}}if (c > 1) ok = false;if (ok) Console.WriteLine(ans);else Console.WriteLine("Impossible");}public static void Main(string[] args){var sw = new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false };Console.SetOut(sw);var cin = new Scanner();Solve(cin);Console.Out.Flush();}public static void YESNO(bool condition){if (condition) Console.WriteLine("YES");else Console.WriteLine("NO");}public static void YesNo(bool condition){if (condition) Console.WriteLine("Yes");else Console.WriteLine("No");}public static void yesno(bool condition){if (condition) Console.WriteLine("yes");else Console.WriteLine("no");}}class Scanner{string[] s;int i;char[] separator = new char[] { ' ' };public Scanner(){s = new string[0];i = 0;}public string Read() => ReadString();public string ReadString(){if (i < s.Length) return s[i++];string st = Console.ReadLine();while (st == "") st = Console.ReadLine();s = st.Split(separator, StringSplitOptions.RemoveEmptyEntries);if (s.Length == 0) return ReadString();i = 0;return s[i++];}public string[] ReadStringArray(int N){string[] Array = new string[N];for (int i = 0; i < N; i++){Array[i] = ReadString();}return Array;}public int ReadInt(){return int.Parse(ReadString());}public int[] ReadIntArray(int N, int add = 0){int[] Array = new int[N];for (int i = 0; i < N; i++){Array[i] = ReadInt() + add;}return Array;}public long ReadLong(){return long.Parse(ReadString());}public long[] ReadLongArray(int N, long add = 0){long[] Array = new long[N];for (int i = 0; i < N; i++){Array[i] = ReadLong() + add;}return Array;}public double ReadDouble(){return double.Parse(ReadString());}public double[] ReadDoubleArray(int N, double add = 0){double[] Array = new double[N];for (int i = 0; i < N; i++){Array[i] = ReadDouble() + add;}return Array;}public T1 ReadValue<T1>() => (T1)Convert.ChangeType(ReadString(), typeof(T1));public (T1, T2) ReadValue<T1, T2>(){var inputs = ReadStringArray(2);var v1 = (T1)Convert.ChangeType(inputs[0], typeof(T1));var v2 = (T2)Convert.ChangeType(inputs[1], typeof(T2));return (v1, v2);}public (T1, T2, T3) ReadValue<T1, T2, T3>(){var inputs = ReadStringArray(3);var v1 = (T1)Convert.ChangeType(inputs[0], typeof(T1));var v2 = (T2)Convert.ChangeType(inputs[1], typeof(T2));var v3 = (T3)Convert.ChangeType(inputs[2], typeof(T3));return (v1, v2, v3);}public (T1, T2, T3, T4) ReadValue<T1, T2, T3, T4>(){var inputs = ReadStringArray(4);var v1 = (T1)Convert.ChangeType(inputs[0], typeof(T1));var v2 = (T2)Convert.ChangeType(inputs[1], typeof(T2));var v3 = (T3)Convert.ChangeType(inputs[2], typeof(T3));var v4 = (T4)Convert.ChangeType(inputs[3], typeof(T4));return (v1, v2, v3, v4);}public (T1, T2, T3, T4, T5) ReadValue<T1, T2, T3, T4, T5>(){var inputs = ReadStringArray(5);var v1 = (T1)Convert.ChangeType(inputs[0], typeof(T1));var v2 = (T2)Convert.ChangeType(inputs[1], typeof(T2));var v3 = (T3)Convert.ChangeType(inputs[2], typeof(T3));var v4 = (T4)Convert.ChangeType(inputs[3], typeof(T4));var v5 = (T5)Convert.ChangeType(inputs[4], typeof(T5));return (v1, v2, v3, v4, v5);}public (T1, T2, T3, T4, T5, T6) ReadValue<T1, T2, T3, T4, T5, T6>(){var inputs = ReadStringArray(6);var v1 = (T1)Convert.ChangeType(inputs[0], typeof(T1));var v2 = (T2)Convert.ChangeType(inputs[1], typeof(T2));var v3 = (T3)Convert.ChangeType(inputs[2], typeof(T3));var v4 = (T4)Convert.ChangeType(inputs[3], typeof(T4));var v5 = (T5)Convert.ChangeType(inputs[4], typeof(T5));var v6 = (T6)Convert.ChangeType(inputs[5], typeof(T6));return (v1, v2, v3, v4, v5, v6);}public (T1, T2, T3, T4, T5, T6, T7) ReadValue<T1, T2, T3, T4, T5, T6, T7>(){var inputs = ReadStringArray(7);var v1 = (T1)Convert.ChangeType(inputs[0], typeof(T1));var v2 = (T2)Convert.ChangeType(inputs[1], typeof(T2));var v3 = (T3)Convert.ChangeType(inputs[2], typeof(T3));var v4 = (T4)Convert.ChangeType(inputs[3], typeof(T4));var v5 = (T5)Convert.ChangeType(inputs[4], typeof(T5));var v6 = (T6)Convert.ChangeType(inputs[5], typeof(T6));var v7 = (T7)Convert.ChangeType(inputs[6], typeof(T7));return (v1, v2, v3, v4, v5, v6, v7);}public T1[] ReadValueArray<T1>(int N){var v1 = new T1[N];for (int i = 0; i < N; i++){v1[i] = ReadValue<T1>();}return v1;}public (T1[], T2[]) ReadValueArray<T1, T2>(int N){var (v1, v2) = (new T1[N], new T2[N]);for (int i = 0; i < N; i++){var (t1, t2) = ReadValue<T1, T2>();v1[i] = t1;v2[i] = t2;}return (v1, v2);}public (T1[], T2[], T3[]) ReadValueArray<T1, T2, T3>(int N){var (v1, v2, v3) = (new T1[N], new T2[N], new T3[N]);for (int i = 0; i < N; i++){var (t1, t2, t3) = ReadValue<T1, T2, T3>();v1[i] = t1;v2[i] = t2;v3[i] = t3;}return (v1, v2, v3);}public (T1[], T2[], T3[], T4[]) ReadValueArray<T1, T2, T3, T4>(int N){var (v1, v2, v3, v4) = (new T1[N], new T2[N], new T3[N], new T4[N]);for (int i = 0; i < N; i++){var (t1, t2, t3, t4) = ReadValue<T1, T2, T3, T4>();v1[i] = t1;v2[i] = t2;v3[i] = t3;v4[i] = t4;}return (v1, v2, v3, v4);}public (T1[], T2[], T3[], T4[], T5[]) ReadValueArray<T1, T2, T3, T4, T5>(int N){var (v1, v2, v3, v4, v5) = (new T1[N], new T2[N], new T3[N], new T4[N], new T5[N]);for (int i = 0; i < N; i++){var (t1, t2, t3, t4, t5) = ReadValue<T1, T2, T3, T4, T5>();v1[i] = t1;v2[i] = t2;v3[i] = t3;v4[i] = t4;v5[i] = t5;}return (v1, v2, v3, v4, v5);}public (T1[], T2[], T3[], T4[], T5[], T6[]) ReadValueArray<T1, T2, T3, T4, T5, T6>(int N){var (v1, v2, v3, v4, v5, v6) = (new T1[N], new T2[N], new T3[N], new T4[N], new T5[N], new T6[N]);for (int i = 0; i < N; i++){var (t1, t2, t3, t4, t5, t6) = ReadValue<T1, T2, T3, T4, T5, T6>();v1[i] = t1;v2[i] = t2;v3[i] = t3;v4[i] = t4;v5[i] = t5;v6[i] = t6;}return (v1, v2, v3, v4, v5, v6);}public (T1[], T2[], T3[], T4[], T5[], T6[], T7[]) ReadValueArray<T1, T2, T3, T4, T5, T6, T7>(int N){var (v1, v2, v3, v4, v5, v6, v7) = (new T1[N], new T2[N], new T3[N], new T4[N], new T5[N], new T6[N], new T7[N]);for (int i = 0; i < N; i++){var (t1, t2, t3, t4, t5, t6, t7) = ReadValue<T1, T2, T3, T4, T5, T6, T7>();v1[i] = t1;v2[i] = t2;v3[i] = t3;v4[i] = t4;v5[i] = t5;v6[i] = t6;v7[i] = t7;}return (v1, v2, v3, v4, v5, v6, v7);}}}