Submission #1307019
Source Code Expand
using System; using System.Collections.Generic; using System.Linq; using System.Collections; using System.Linq.Expressions; static class Program { static void Main() { new Magatro().Solve(); } } class Magatro { private int N, K; const int Mod = 1000000007; private int[,] Combination; private void Scan() { var l = Console.ReadLine().Split(' '); N = int.Parse(l[0]); K = int.Parse(l[1]); } private void Calc() { Combination = new int[501, 501]; for(int i = 0; i < 501; i++) { for(int j = 0; j <= i; j++) { if(i == 0 || j == 0) { Combination[i, j] = 1; } else { Combination[i, j] = (Combination[i - 1, j - 1] + Combination[i - 1, j]) % Mod; } } } } public void Solve() { Scan(); Calc(); if (N > K) { int ans = 0; for(int i = 1; i <= K; i++) { ans += Combination[N, i]; ans %= Mod; } Console.WriteLine(ans); } else { Console.WriteLine(Combination[N, K % N]); } } }
Submission Info
Submission Time | |
---|---|
Task | B - 高橋幼稚園 |
User | mban |
Language | C# (Mono 4.6.2.0) |
Score | 80 |
Code Size | 1394 Byte |
Status | WA |
Exec Time | 23 ms |
Memory | 13172 KB |
Judge Result
Set Name | Sample | Subtask1 | Subtask2 | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 80 / 80 | 0 / 20 | ||||||||
Status |
|
|
|
Set Name | Test Cases |
---|---|
Sample | subtask0_sample_01.txt, subtask0_sample_02.txt, subtask0_sample_03.txt |
Subtask1 | subtask0_sample_01.txt, subtask0_sample_02.txt, 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 |
Subtask2 | subtask0_sample_01.txt, subtask0_sample_02.txt, subtask0_sample_03.txt, 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, 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 |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
subtask0_sample_01.txt | AC | 22 ms | 9824 KB |
subtask0_sample_02.txt | AC | 22 ms | 11872 KB |
subtask0_sample_03.txt | AC | 22 ms | 11872 KB |
subtask1_01.txt | AC | 21 ms | 9824 KB |
subtask1_02.txt | AC | 22 ms | 9824 KB |
subtask1_03.txt | AC | 22 ms | 9824 KB |
subtask1_04.txt | AC | 22 ms | 11872 KB |
subtask1_05.txt | AC | 22 ms | 11872 KB |
subtask1_06.txt | AC | 22 ms | 11872 KB |
subtask1_07.txt | AC | 22 ms | 9824 KB |
subtask1_08.txt | AC | 22 ms | 9824 KB |
subtask1_09.txt | AC | 22 ms | 9824 KB |
subtask1_10.txt | AC | 22 ms | 11872 KB |
subtask1_11.txt | AC | 22 ms | 11872 KB |
subtask1_12.txt | AC | 22 ms | 9696 KB |
subtask1_13.txt | AC | 21 ms | 9824 KB |
subtask1_14.txt | AC | 22 ms | 9824 KB |
subtask1_15.txt | AC | 21 ms | 9824 KB |
subtask1_16.txt | AC | 22 ms | 13172 KB |
subtask1_17.txt | AC | 22 ms | 9824 KB |
subtask1_18.txt | AC | 22 ms | 11872 KB |
subtask1_19.txt | AC | 22 ms | 11872 KB |
subtask2_01.txt | WA | 22 ms | 11872 KB |
subtask2_02.txt | WA | 22 ms | 11872 KB |
subtask2_03.txt | WA | 23 ms | 13172 KB |
subtask2_04.txt | WA | 22 ms | 9824 KB |
subtask2_05.txt | WA | 22 ms | 11872 KB |
subtask2_06.txt | WA | 22 ms | 11872 KB |
subtask2_07.txt | WA | 22 ms | 11872 KB |
subtask2_08.txt | WA | 23 ms | 13172 KB |
subtask2_09.txt | WA | 22 ms | 11872 KB |
subtask2_10.txt | WA | 21 ms | 9824 KB |
subtask2_11.txt | AC | 21 ms | 9824 KB |