Submission #1611762


Source Code Expand

using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;
using static System.Console;
using Pair = System.Collections.Generic.KeyValuePair<int, int>;
//using System.Numerics;
//using static System.Math;

class Program
{
    static void Main()
    {
        //SetOut(new StreamWriter(OpenStandardOutput()) { AutoFlush = false });
        new Program().solve();
        Out.Flush();
    }
    Scanner cin = new Scanner();
    readonly int[] dd = { 0, 1, 0, -1, 0 };
    readonly int mod = 1000000007;
    readonly string alfa = "abcdefghijklmnopqrstuvwxyz";
    readonly string ALFA = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

    int N;
    int R, C;
    List<Edge>[] G;
    long[] W;
    const long inf = long.MaxValue / 3;
    bool[] B;
    bool ok = true;
    void solve()
    {
        R = cin.nextint;
        C = cin.nextint;
        N = cin.nextint;
        G = Enumerable.Range(0, R + C).Select(i => new List<Edge>()).ToArray();
        for (int i = 0; i < N; i++)
        {
            int r = cin.nextint - 1;
            int c = cin.nextint - 1;
            int a = cin.nextint;
            G[r].Add(new Edge(R + c, a));
            G[R + c].Add(new Edge(r, a));
        }
        W = Enumerable.Repeat(inf, R + C).ToArray();
        B = new bool[R + C];
        for (int i = 0; i < R + C; i++)
        {
            dfs(i, 0, -1);
        }
        //WriteLine(string.Join(" ", W));
        if (ok && W.Take(R).Min() + W.Skip(R).Min() >= 0)
        {
            WriteLine("Yes");
        }
        else
        {
            WriteLine("No");
        }
    }
    void dfs(int u, long value, int before)
    {
        //WriteLine(u + 1);
        if (B[u])
        {
            if (before == 0 && W[u] != value)
            {
                ok = false;
            }
            return;
        }
        B[u] = true;
        W[u] = value;
        foreach (var v in G[u])
        {
            dfs(v.to, v.cost - value, 0);
        }
    }


    struct Edge : IComparable<Edge>
    {
        public int to; public long cost;
        public Edge(int to, long cost)
        {
            this.to = to;
            this.cost = cost;
        }
        public int CompareTo(Edge e)
        {
            return cost.CompareTo(e.cost);
        }
    }

}

class Scanner
{
    string[] s; int i;
    char[] cs = new char[] { ' ' };
    public Scanner() { s = new string[0]; i = 0; }
    public string[] scan { get { return ReadLine().Split(); } }
    public int[] scanint { get { return Array.ConvertAll(scan, int.Parse); } }
    public long[] scanlong { get { return Array.ConvertAll(scan, long.Parse); } }
    public double[] scandouble { get { return Array.ConvertAll(scan, double.Parse); } }
    public string next
    {
        get
        {
            if (i < s.Length) return s[i++];
            string st = ReadLine();
            while (st == "") st = ReadLine();
            s = st.Split(cs, StringSplitOptions.RemoveEmptyEntries);
            i = 0;
            return next;
        }
    }
    public int nextint { get { return int.Parse(next); } }
    public long nextlong { get { return long.Parse(next); } }
    public double nextdouble { get { return double.Parse(next); } }
}

Submission Info

Submission Time
Task D - Grid and Integers
User claw88
Language C# (Mono 4.6.2.0)
Score 0
Code Size 3333 Byte
Status WA
Exec Time 344 ms
Memory 56716 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 800
Status
AC × 5
AC × 50
WA × 19
Set Name Test Cases
Sample 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 0_04.txt
All 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 0_04.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt, 1_24.txt, 1_25.txt, 1_26.txt, 1_27.txt, 1_28.txt, 1_29.txt, 1_30.txt, 1_31.txt, 1_32.txt, 1_33.txt, 1_34.txt, 1_35.txt, 1_36.txt, 1_37.txt, 1_38.txt, 1_39.txt, 1_40.txt, 1_41.txt, 1_42.txt, 1_43.txt, 1_44.txt, 1_45.txt, 1_46.txt, 1_47.txt, 1_48.txt, 1_49.txt, 1_50.txt, 1_51.txt, 1_52.txt, 1_53.txt, 1_54.txt, 1_55.txt, 1_56.txt, 1_57.txt, 1_58.txt, 1_59.txt, 1_60.txt, 1_61.txt, 1_62.txt, 1_63.txt
Case Name Status Exec Time Memory
0_00.txt AC 30 ms 9556 KB
0_01.txt AC 28 ms 13524 KB
0_02.txt AC 30 ms 11476 KB
0_03.txt AC 30 ms 13524 KB
0_04.txt AC 28 ms 13524 KB
1_00.txt AC 72 ms 32368 KB
1_01.txt AC 72 ms 32368 KB
1_02.txt AC 72 ms 30320 KB
1_03.txt AC 74 ms 30320 KB
1_04.txt AC 72 ms 28272 KB
1_05.txt AC 64 ms 30192 KB
1_06.txt AC 310 ms 50956 KB
1_07.txt AC 344 ms 50824 KB
1_08.txt AC 300 ms 42644 KB
1_09.txt AC 299 ms 42644 KB
1_10.txt AC 315 ms 42128 KB
1_11.txt AC 302 ms 41996 KB
1_12.txt AC 337 ms 56716 KB
1_13.txt AC 328 ms 50444 KB
1_14.txt AC 343 ms 52620 KB
1_15.txt AC 331 ms 50444 KB
1_16.txt AC 314 ms 48408 KB
1_17.txt AC 317 ms 49944 KB
1_18.txt AC 319 ms 52500 KB
1_19.txt AC 325 ms 50836 KB
1_20.txt AC 167 ms 30548 KB
1_21.txt WA 115 ms 28160 KB
1_22.txt WA 56 ms 25008 KB
1_23.txt WA 211 ms 37308 KB
1_24.txt AC 206 ms 28364 KB
1_25.txt AC 176 ms 28352 KB
1_26.txt WA 42 ms 12640 KB
1_27.txt WA 77 ms 24812 KB
1_28.txt AC 282 ms 36140 KB
1_29.txt WA 119 ms 26980 KB
1_30.txt AC 272 ms 35372 KB
1_31.txt WA 160 ms 32984 KB
1_32.txt AC 188 ms 28212 KB
1_33.txt AC 267 ms 39468 KB
1_34.txt WA 74 ms 25260 KB
1_35.txt AC 198 ms 25508 KB
1_36.txt WA 83 ms 29864 KB
1_37.txt AC 111 ms 24108 KB
1_38.txt WA 236 ms 36068 KB
1_39.txt WA 105 ms 29368 KB
1_40.txt WA 233 ms 38248 KB
1_41.txt WA 157 ms 36840 KB
1_42.txt AC 193 ms 30312 KB
1_43.txt AC 226 ms 32060 KB
1_44.txt AC 230 ms 36532 KB
1_45.txt AC 92 ms 25332 KB
1_46.txt AC 264 ms 34860 KB
1_47.txt WA 113 ms 25600 KB
1_48.txt AC 95 ms 23360 KB
1_49.txt WA 65 ms 21424 KB
1_50.txt AC 161 ms 32076 KB
1_51.txt AC 242 ms 32092 KB
1_52.txt WA 86 ms 32168 KB
1_53.txt WA 103 ms 31368 KB
1_54.txt WA 110 ms 25980 KB
1_55.txt AC 113 ms 22996 KB
1_56.txt AC 197 ms 35028 KB
1_57.txt AC 253 ms 32712 KB
1_58.txt AC 243 ms 34420 KB
1_59.txt WA 65 ms 27504 KB
1_60.txt AC 30 ms 11476 KB
1_61.txt AC 29 ms 9428 KB
1_62.txt AC 30 ms 11604 KB
1_63.txt AC 27 ms 9428 KB