結果
問題 | No.460 裏表ちわーわ |
ユーザー | kuuso1 |
提出日時 | 2016-12-11 04:45:58 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 1,991 ms / 2,000 ms |
コード長 | 6,148 bytes |
コンパイル時間 | 1,322 ms |
コンパイル使用メモリ | 111,104 KB |
実行使用メモリ | 22,912 KB |
最終ジャッジ日時 | 2024-11-29 03:04:17 |
合計ジャッジ時間 | 12,276 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 | 26 ms
18,560 KB |
testcase_01 | AC | 26 ms
18,688 KB |
testcase_02 | AC | 28 ms
18,816 KB |
testcase_03 | AC | 25 ms
18,688 KB |
testcase_04 | AC | 25 ms
18,816 KB |
testcase_05 | AC | 60 ms
22,388 KB |
testcase_06 | AC | 60 ms
22,400 KB |
testcase_07 | AC | 1,991 ms
22,528 KB |
testcase_08 | AC | 42 ms
20,608 KB |
testcase_09 | AC | 28 ms
18,688 KB |
testcase_10 | AC | 204 ms
22,656 KB |
testcase_11 | AC | 60 ms
22,396 KB |
testcase_12 | AC | 501 ms
22,524 KB |
testcase_13 | AC | 870 ms
22,656 KB |
testcase_14 | AC | 612 ms
22,648 KB |
testcase_15 | AC | 568 ms
22,656 KB |
testcase_16 | AC | 60 ms
22,400 KB |
testcase_17 | AC | 728 ms
22,528 KB |
testcase_18 | AC | 800 ms
22,656 KB |
testcase_19 | AC | 1,269 ms
22,912 KB |
testcase_20 | AC | 60 ms
22,516 KB |
testcase_21 | AC | 591 ms
22,784 KB |
testcase_22 | AC | 612 ms
22,780 KB |
testcase_23 | AC | 963 ms
22,656 KB |
testcase_24 | AC | 54 ms
22,144 KB |
testcase_25 | AC | 25 ms
18,560 KB |
testcase_26 | AC | 25 ms
18,560 KB |
testcase_27 | AC | 26 ms
18,560 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.Collections; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; class TEST{ static void Main(){ Sol mySol =new Sol(); mySol.Solve(); } } class Sol{ public void Solve(){ int[] a0 = new int[H]; for(int i=0;i<H;i++){ for(int j=0;j<W;j++){ if(A[i][j] == 1){ a0[i] |= (1<<j); } } } Min = 9999; fm = (1<<W)-1; int[] r = Enumerable.Repeat(-1,H).ToArray(); dfs(a0,r,-1); Console.WriteLine(Min == 9999 ? "Impossible" : Min.ToString()); } int Min; int fm; int cnt = 0; void dfs(int[] Mp, int[] route, int dep){ if(dep == H-1){ for(int i=0;i<H;i++) if(Mp[i] != 0) return; int tot = 0; for(int i=0;i<H;i++) tot += PopCnt(route[i]); Min = Math.Min(Min,tot); cnt++; return; } dep++; for(int i=0;i<(1<<W);i++){ int lm = 0; for(int j=0;j<W;j++){ if(((i>>j) & 1) == 1){ lm ^= j == 0 ? 3 : (7<<(j-1)); } } lm &= fm; int[] nMp = (int[]) Mp.Clone(); for(int j=dep-1;j<=dep+1;j++){ if(j<0 || j>=H)continue; nMp[j] ^= lm; } if(dep-1>=0){ if(nMp[dep-1] == 0){ var r = (int[])route.Clone(); r[dep] = i; int tt = 0; for(int j=0;j<H;j++) if(r[j]!=-1) tt += PopCnt(r[j]); if(tt <= Min)dfs(nMp,r,dep); } }else{ var r = (int[])route.Clone(); r[dep] = i; int tt = 0; for(int j=0;j<H;j++) if(r[j]!=-1) tt += PopCnt(r[j]); if(tt <= Min)dfs(nMp,r,dep); } } } int PopCnt(int bits){ bits = (bits & 0x55555555) + (bits >> 1 & 0x55555555); bits = (bits & 0x33333333) + (bits >> 2 & 0x33333333); bits = (bits & 0x0f0f0f0f) + (bits >> 4 & 0x0f0f0f0f); bits = (bits & 0x00ff00ff) + (bits >> 8 & 0x00ff00ff); return (bits & 0x0000ffff) + (bits >>16 & 0x0000ffff); } int H,W; int[][] A; public Sol(){ using( var r = new FastIn()){ H = r.ReadInt(); W = r.ReadInt(); A = new int[H][]; for(int i=0;i<H;i++) A[i] = new int[W]; for(int i=0;i<H;i++){ for(int j=0;j<W;j++){ A[i][j] = r.ReadInt(); } } } } static String rs(){return Console.ReadLine();} static int ri(){return int.Parse(Console.ReadLine());} static long rl(){return long.Parse(Console.ReadLine());} static double rd(){return double.Parse(Console.ReadLine());} static String[] rsa(char sep=' '){return Console.ReadLine().Split(sep);} static int[] ria(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>int.Parse(e));} static long[] rla(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>long.Parse(e));} static double[] rda(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>double.Parse(e));} } class FastIn:IDisposable { int Size; byte[] Mem; int ptr; int rsize; bool unfinished; Stream stdin; void Init(int n) { Size = n; Mem = new byte[Size]; rsize=(stdin=Console.OpenStandardInput()).Read(Mem, 0, Size); ptr = 0; unfinished=(rsize == Size); } void Next() { if (unfinished == false) return; rsize=stdin.Read(Mem, 0, Size); ptr = 0; unfinished = (rsize == Size); } ~FastIn(){ stdin.Dispose(); } void IDisposable.Dispose(){ stdin.Dispose(); } public void Dispose(){ stdin.Dispose(); } public FastIn() { Init(100000); } public FastIn(int n) { Init(n); } public int ReadInt() { int ret = 0; int sig = 1; while (ptr < rsize && Mem[ptr] != ' ' && Mem[ptr] != '\n' && Mem[ptr] != '\r' ) { if(ret==0 && Mem[ptr] == '-'){ sig *= -1; ptr++; continue; } ret = ret * 10 + Mem[ptr++] - '0'; if (ptr == Size) Next(); } while (ptr < rsize && (Mem[ptr] == ' ' || Mem[ptr] == '\n' || Mem[ptr] == '\r') ) { ptr++; if (ptr == Size) Next(); } return ret*sig; } public uint ReadUint() { uint ret = 0; uint sig = 1; while (ptr < rsize && Mem[ptr] != ' ' && Mem[ptr] != '\n' && Mem[ptr] != '\r' ) { ret = ret * 10 + Mem[ptr++] - '0'; if (ptr == Size) Next(); } while (ptr < rsize && (Mem[ptr] == ' ' || Mem[ptr] == '\n' || Mem[ptr] == '\r') ) { ptr++; if (ptr == Size) Next(); } return ret*sig; } public long ReadLong() { long ret = 0; long sig = 1; while (ptr < rsize && Mem[ptr] != ' ' && Mem[ptr] != '\n' && Mem[ptr] != '\r' ) { if(ret==0 && Mem[ptr] == '-'){ sig *= -1; ptr++; continue; } ret = ret * 10 + Mem[ptr++] - '0'; if (ptr == Size) Next(); } while (ptr < rsize && (Mem[ptr] == ' ' || Mem[ptr] == '\n' || Mem[ptr] == '\r') ) { ptr++; if (ptr == Size) Next(); } return ret*sig; } public double ReadDouble() { double ret = 0; double sig = 1; bool dot = false; double keta = 0.1; while (ptr < rsize && Mem[ptr] != ' ' && Mem[ptr] != '\n' && Mem[ptr] != '\r' ) { if(ret==0 && Mem[ptr] == '-'){ sig *= -1; ptr++; if (ptr == Size) Next(); continue; } if(Mem[ptr] == '.'){ dot = true; ptr++; if (ptr == Size) Next(); continue; } if(!dot){ ret = ret * 10 + Mem[ptr++] - '0'; if (ptr == Size) Next(); }else{ ret = ret + (Mem[ptr++] - '0')*keta; keta /= 10.0; if (ptr == Size) Next(); } } while (ptr < rsize && (Mem[ptr] == ' ' || Mem[ptr] == '\n' || Mem[ptr] == '\r') ) { ptr++; if (ptr == Size) Next(); } return ret*sig; } public String ReadStr() { //2byte文字はNG StringBuilder sb = new StringBuilder(); while (ptr < rsize && Mem[ptr] != ' ' && Mem[ptr] != '\n' && Mem[ptr] != '\r') { sb.Append((char)Mem[ptr++]); if (ptr == Size && unfinished) Next(); } while (ptr < rsize && (Mem[ptr] == ' ' || Mem[ptr] == '\n' || Mem[ptr] == '\r') ) { ptr++; if (ptr == Size && unfinished) Next(); } return sb.ToString(); } public String ReadLine() { //極力使わない(split/parseするくらいなら上をつかう) StringBuilder sb = new StringBuilder(); while (ptr < rsize && Mem[ptr] != '\n' && Mem[ptr] != '\r') { sb.Append((char)Mem[ptr++]); if (ptr == Size && unfinished) Next(); } while (ptr < rsize && (Mem[ptr] == ' ' || Mem[ptr] == '\n' || Mem[ptr] == '\r')) { ptr++; if (ptr == Size && unfinished) Next(); } return sb.ToString(); } }