Submission #2243659
Source Code Expand
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Diagnostics; using System.IO; namespace AtCoder { class Program { private static string Read() { return Console.ReadLine(); } private static int ReadInt() { return int.Parse(Read()); } private static long ReadLong() { return long.Parse(Read()); } private static double ReadDouble() { return double.Parse(Read()); } private static int[] ReadInts() { return Array.ConvertAll(Read().Split(), int.Parse); } private static long[] ReadLongs() { return Array.ConvertAll(Read().Split(), long.Parse); } private static double[] ReadDoubles() { return Array.ConvertAll(Read().Split(), double.Parse); } static int Solve(int N, int[] P) { int count = 0; for (int i = 0; i < N; ++i) { if (P[i] == i + 1) { if (i + 1 < N) { int tmp = P[i]; P[i] = P[i + 1]; P[i + 1] = tmp; } ++count; } } return count; } static void Main(string[] args) { int N = ReadInt(); Console.WriteLine(Solve(N, ReadInts())); } } }
Submission Info
Submission Time | |
---|---|
Task | D - Derangement |
User | M_Saito |
Language | C# (Mono 4.6.2.0) |
Score | 400 |
Code Size | 1436 Byte |
Status | AC |
Exec Time | 54 ms |
Memory | 18912 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 400 / 400 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | 0_000.txt, 0_001.txt, 0_002.txt, 0_003.txt |
All | 0_000.txt, 0_001.txt, 0_002.txt, 0_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 1_011.txt, 1_012.txt, 1_013.txt, 1_014.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_000.txt | AC | 20 ms | 11092 KB |
0_001.txt | AC | 20 ms | 11092 KB |
0_002.txt | AC | 20 ms | 9044 KB |
0_003.txt | AC | 20 ms | 11092 KB |
1_004.txt | AC | 20 ms | 11092 KB |
1_005.txt | AC | 52 ms | 16736 KB |
1_006.txt | AC | 52 ms | 14816 KB |
1_007.txt | AC | 53 ms | 16864 KB |
1_008.txt | AC | 53 ms | 18784 KB |
1_009.txt | AC | 53 ms | 18912 KB |
1_010.txt | AC | 52 ms | 14816 KB |
1_011.txt | AC | 52 ms | 14816 KB |
1_012.txt | AC | 54 ms | 18912 KB |
1_013.txt | AC | 52 ms | 14816 KB |
1_014.txt | AC | 53 ms | 16864 KB |