結果
問題 | No.1103 Directed Length Sum |
ユーザー | fairy_lettuce |
提出日時 | 2020-07-03 23:44:02 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 1,851 ms / 3,000 ms |
コード長 | 8,018 bytes |
コンパイル時間 | 980 ms |
コンパイル使用メモリ | 118,240 KB |
実行使用メモリ | 148,852 KB |
最終ジャッジ日時 | 2024-09-17 05:05:43 |
合計ジャッジ時間 | 19,733 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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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 | 25 ms
26,260 KB |
testcase_01 | AC | 25 ms
24,304 KB |
testcase_02 | AC | 1,324 ms
148,852 KB |
testcase_03 | AC | 1,125 ms
113,636 KB |
testcase_04 | AC | 1,042 ms
88,804 KB |
testcase_05 | AC | 1,851 ms
119,020 KB |
testcase_06 | AC | 651 ms
70,212 KB |
testcase_07 | AC | 134 ms
36,160 KB |
testcase_08 | AC | 199 ms
40,472 KB |
testcase_09 | AC | 96 ms
37,064 KB |
testcase_10 | AC | 298 ms
52,260 KB |
testcase_11 | AC | 1,152 ms
90,728 KB |
testcase_12 | AC | 625 ms
70,496 KB |
testcase_13 | AC | 302 ms
52,696 KB |
testcase_14 | AC | 78 ms
32,084 KB |
testcase_15 | AC | 464 ms
61,924 KB |
testcase_16 | AC | 1,286 ms
93,060 KB |
testcase_17 | AC | 1,427 ms
98,152 KB |
testcase_18 | AC | 297 ms
52,132 KB |
testcase_19 | AC | 1,125 ms
88,856 KB |
testcase_20 | AC | 110 ms
35,232 KB |
testcase_21 | AC | 192 ms
41,292 KB |
testcase_22 | AC | 917 ms
76,312 KB |
testcase_23 | AC | 503 ms
60,392 KB |
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.C { static class Program { public static void Solve(Scanner cin) { int n = cin.ReadInt(); var (a, b) = cin.ReadValueArray<int, int>(n - 1); for (int i = 0; i < n - 1; i++) { a[i]--; b[i]--; } var children = new List<List<int>>(); var parent = new int[n]; var depth = new long[n]; for (int i = 0; i < n; i++) { children.Add(new List<int>()); parent[i] = -1; } for (int i = 0; i < n - 1; i++) { children[a[i]].Add(b[i]); parent[b[i]] = a[i]; } var root = 0; for (int i = 0; i < n; i++) { if (parent[i] == -1) root = i; } var q = new Queue<int>(); q.Enqueue(root); depth[root] = 0; while (q.Count > 0) { var now = q.Dequeue(); var nextdepth = depth[now] + 1; foreach (var e in children[now]) { depth[e] = nextdepth; q.Enqueue(e); } } long ans = 0; for (int i = 0; i < n; i++) { ans += depth[i] * (depth[i] + 1) / 2; } Console.WriteLine(ans % 1000000007); } 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); } } }