結果

問題 No.2927 Reverse Polish Equation
ユーザー KumaTachiRenKumaTachiRen
提出日時 2024-10-12 15:25:26
言語 C#
(.NET 8.0.203)
結果
AC  
実行時間 335 ms / 2,000 ms
コード長 7,258 bytes
コンパイル時間 8,076 ms
コンパイル使用メモリ 167,092 KB
実行使用メモリ 219,676 KB
最終ジャッジ日時 2024-10-16 00:22:53
合計ジャッジ時間 16,237 ms
ジャッジサーバーID
（参考情報） 		judge2 / 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 51 ms
29,312 KB
testcase_01 AC 51 ms
29,184 KB
testcase_02 AC 51 ms
29,440 KB
testcase_03 AC 51 ms
29,440 KB
testcase_04 AC 50 ms
29,312 KB
testcase_05 AC 53 ms
29,184 KB
testcase_06 AC 51 ms
29,280 KB
testcase_07 AC 69 ms
31,872 KB
testcase_08 AC 68 ms
32,000 KB
testcase_09 AC 67 ms
32,128 KB
testcase_10 AC 51 ms
29,312 KB
testcase_11 AC 68 ms
32,096 KB
testcase_12 AC 131 ms
40,192 KB
testcase_13 AC 181 ms
46,080 KB
testcase_14 AC 148 ms
41,720 KB
testcase_15 AC 165 ms
45,440 KB
testcase_16 AC 102 ms
36,224 KB
testcase_17 AC 202 ms
50,048 KB
testcase_18 AC 241 ms
54,656 KB
testcase_19 AC 74 ms
33,152 KB
testcase_20 AC 204 ms
49,636 KB
testcase_21 AC 271 ms
57,984 KB
testcase_22 AC 86 ms
34,404 KB
testcase_23 AC 50 ms
29,184 KB
testcase_24 AC 44 ms
23,680 KB
testcase_25 AC 52 ms
29,280 KB
testcase_26 AC 51 ms
29,184 KB
testcase_27 AC 264 ms
55,808 KB
testcase_28 AC 273 ms
52,072 KB
testcase_29 AC 97 ms
34,304 KB
testcase_30 AC 300 ms
54,784 KB
testcase_31 AC 79 ms
33,280 KB
testcase_32 AC 119 ms
36,992 KB
testcase_33 AC 165 ms
41,696 KB
testcase_34 AC 189 ms
44,416 KB
testcase_35 AC 52 ms
29,312 KB
testcase_36 AC 227 ms
54,912 KB
testcase_37 AC 145 ms
39,552 KB
testcase_38 AC 335 ms
57,856 KB
testcase_39 AC 175 ms
42,752 KB
testcase_40 AC 286 ms
54,400 KB
testcase_41 AC 251 ms
50,432 KB
testcase_42 AC 231 ms
54,016 KB
testcase_43 AC 231 ms
54,144 KB
testcase_44 AC 234 ms
54,144 KB
testcase_45 AC 223 ms
219,676 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
  復元対象のプロジェクトを決定しています...
  /home/judge/data/code/main.csproj を復元しました (96 ms)。
MSBuild のバージョン 17.9.6+a4ecab324 (.NET)
  main -> /home/judge/data/code/bin/Release/net8.0/main.dll
  main -> /home/judge/data/code/bin/Release/net8.0/publish/

ソースコード

diff # 

using Lib;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using static Lib.OutputLib;
public class Solver
{
    const bool MultiTestCase = false;
    void Solve()
    {
        int q = ri;
        long y = rl;

        var ops = new (int t, long v)[q];
        for (int i = 0; i < q; i++)
        {
            var s = rs;
            if (s[0] == '+')
            {
                ops[i] = (0, 0);
            }
            else if (s[0] == 'm')
            {
                if (s[1] == 'i')
                {
                    ops[i] = (1, 0);
                }
                else
                {
                    ops[i] = (2, 0);
                }
            }
            else if (s[0] == 'X')
            {
                ops[i] = (-1, 0);
            }
            else
            {
                long v = long.Parse(s);
                ops[i] = (-2, v);
            }
        }

        var st = new Stack<long>();
        long lt = -1, geq = y + 1;
        while (geq - lt > 1)
        {
            long x = (geq + lt) / 2;
            foreach (var (t, v) in ops)
            {
                if (t == 0) st.Push(st.Pop() + st.Pop());
                if (t == 1) st.Push(Math.Min(st.Pop(), st.Pop()));
                if (t == 2) st.Push(Math.Max(st.Pop(), st.Pop()));
                if (t == -1) st.Push(x);
                if (t == -2) st.Push(v);
            }
            long z = st.Pop();
            if (z < y) lt = x; else geq = x;
        }

        {
            long x = geq;
            foreach (var (t, v) in ops)
            {
                if (t == 0) st.Push(st.Pop() + st.Pop());
                if (t == 1) st.Push(Math.Min(st.Pop(), st.Pop()));
                if (t == 2) st.Push(Math.Max(st.Pop(), st.Pop()));
                if (t == -1) st.Push(x);
                if (t == -2) st.Push(v);
            }
            long z = st.Pop();
            Write(z == y ? x : -1);
        }
    }

#pragma warning disable CS0162
    public Solver() { if (!MultiTestCase) Solve(); else for (int t = ri; t > 0; t--) Solve(); }
#pragma warning restore CS0162

    const int IINF = 1 << 30;
    const long INF = 1L << 60;
    int ri { [MethodImpl(256)] get => (int)sc.Integer(); }
    long rl { [MethodImpl(256)] get => sc.Integer(); }
    uint rui { [MethodImpl(256)] get => (uint)sc.UInteger(); }
    ulong rul { [MethodImpl(256)] get => sc.UInteger(); }
    double rd { [MethodImpl(256)] get => sc.Double(); }
    string rs { [MethodImpl(256)] get => sc.Scan(); }
    string rline { [MethodImpl(256)] get => sc.Line(); }
    public StreamScanner sc = new StreamScanner(Console.OpenStandardInput());
    void ReadArray(out int[] a, int n) { a = new int[n]; for (int i = 0; i < a.Length; i++) a[i] = ri; }
    void ReadArray(out long[] a, int n) { a = new long[n]; for (int i = 0; i < a.Length; i++) a[i] = rl; }
    void ReadArray<T>(out T[] a, int n, Func<T> read) { a = new T[n]; for (int i = 0; i < a.Length; i++) a[i] = read(); }
    void ReadArray<T>(out T[] a, int n, Func<int, T> read) { a = new T[n]; for (int i = 0; i < a.Length; i++) a[i] = read(i); }
}

static class Program
{
    static public void Main(string[] args)
    {
        SourceExpander.Expander.Expand();
        Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false });
        new Solver();
        Console.Out.Flush();
    }
}
#region Expanded by https://github.com/kzrnm/SourceExpander
namespace Lib{public partial class StreamScanner{public int[][]ReadUnweightedTree(int n,int origin=1){var gr=new List<int>[n];for(int i=0;i<n;i++)gr[i]=new List<int>();for(int i=0;i<n-1;i++){int u=(int)(Integer()-origin);int v=(int)(Integer()-origin);gr[u].Add(v);gr[v].Add(u);}var g=new int[n][];for(int i=0;i<n;i++)g[i]=gr[i].ToArray();return g;}}}
namespace Lib{public partial class StreamScanner{public StreamScanner(Stream stream){str=stream;}private readonly Stream str;private readonly byte[]buf=new byte[1024];private int len,ptr;public bool isEof=false;public bool IsEndOfStream{get{return isEof;}}[MethodImpl(256)]private byte Read(){if(isEof)throw new EndOfStreamException();if(ptr>=len){ptr=0;if((len=str.Read(buf,0,1024))<=0){isEof=true;return 0;}}return buf[ptr++];}[MethodImpl(256)]public char Char(){byte b;do b=Read();while(b<33||126<b);return(char)b;}[MethodImpl(256)]public string Line(){var sb=new StringBuilder();for(var b=Char();b!=10&&!isEof;b=(char)Read())sb.Append(b);return sb.ToString();}[MethodImpl(256)]public string Scan(){var sb=new StringBuilder();for(var b=Char();b>=33&&b<=126;b=(char)Read())sb.Append(b);return sb.ToString();}[MethodImpl(256)]public long Integer(){long ret=0;var ng=false;byte b;do b=Read();while(b!='-'&&(b<'0'||'9'<b));if(b=='-'){ng=true;b=Read();}for(;'0'<=b&&b<='9';b=Read())ret=ret*10+(b^'0');return ng?-ret:ret;}[MethodImpl(256)]public ulong UInteger(){ulong ret=0;byte b;do b=Read();while(b<'0'||'9'<b);for(;'0'<=b&&b<='9';b=Read())ret=ret*10+(ulong)(b^'0');return ret;}[MethodImpl(256)]public double Double()=>double.Parse(Scan());}}
namespace Lib{public static class OutputLib{[MethodImpl(256)]public static void WriteJoin<T>(string s,IEnumerable<T>t)=>Console.WriteLine(string.Join(s,t));[MethodImpl(256)]public static void WriteMat<T>(T[,]a,string sep=" "){int sz1=a.GetLength(0),sz2=a.GetLength(1);var b=new T[sz2];for(int i=0;i<sz1;i++){for(int j=0;j<sz2;j++)b[j]=a[i,j];WriteJoin(sep,b);}}[MethodImpl(256)]public static void WriteMat<T>(T[][]a,string sep=" "){foreach(var ar in a)WriteJoin(sep,ar);}[MethodImpl(256)]public static void WriteMat<T>(T[][]a,Func<T,string>map,string sep=" "){foreach(var ar in a)WriteJoin(sep,ar.Select(x=>map(x)));}[MethodImpl(256)]public static void Write(object t)=>Console.WriteLine(t.ToString());[MethodImpl(256)]public static void Write(params object[]arg)=>Console.WriteLine(string.Join(" ",arg.Select(x=>x.ToString())));[MethodImpl(256)]public static void Write(string str)=>Console.WriteLine(str);[MethodImpl(256)]public static void WriteFlush(object t){Console.WriteLine(t.ToString());Console.Out.Flush();}[MethodImpl(256)]public static void WriteError(object t)=>Console.Error.WriteLine(t.ToString());[MethodImpl(256)]public static void Flush()=>Console.Out.Flush();[MethodImpl(256)]public static void YN(bool t)=>Console.WriteLine(t?"YES":"NO");[MethodImpl(256)]public static void Yn(bool t)=>Console.WriteLine(t?"Yes":"No");[MethodImpl(256)]public static void yn(bool t)=>Console.WriteLine(t?"yes":"no");[MethodImpl(256)]public static void DeleteLine()=>Console.Write("\x1b[1A\x1b[2K");[MethodImpl(256)]public static void ProgressBar(long now,long total,int blocks=50){int x=(int)((2*now*blocks+1)/(2*total));Console.Write($"\x1b[G[\x1b[42m{string.Concat(Enumerable.Repeat("_",x))}\x1b[0m{string.Concat(Enumerable.Repeat("_",blocks-x))}] : {now} / {total}");}}}
namespace SourceExpander{public class Expander{[Conditional("EXP")]public static void Expand(string inputFilePath=null,string outputFilePath=null,bool ignoreAnyError=true){}public static string ExpandString(string inputFilePath=null,bool ignoreAnyError=true){return "";}}}
#endregion Expanded by https://github.com/kzrnm/SourceExpander
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