Submission #1281871


Source Code Expand

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

int main()
{
    int N, M;
    cin>>N>>M;
    vector<int> a(M);
    vector<int> b(M);
    vector<long long> c(M);
    for (int i=0; i<M; i++)
        cin>>a[i]>>b[i]>>c[i],
        a[i]--, b[i]--;

    long long oo = 0x1000000000000000LL;
    vector<long long> d(N, -oo);
    d[0] = 0LL;
    long long d1, d2;
    for (int i=0; i<2*N; i++)
    {
        for (int j=0; j<M; j++)
            d[b[j]] = max(d[b[j]], d[a[j]] + c[j]);
        if (i==N-1)
            d1 = d[N-1];
        if (i==2*N-1)
            d2 = d[N-1];
    }
    if (d1 == d2)
        cout<<d1<<endl;
    else
        cout<<"inf"<<endl;
}

Submission Info

Submission Time
Task D - Score Attack
User kusano
Language C++14 (GCC 5.4.1)
Score 400
Code Size 725 Byte
Status AC
Exec Time 10 ms
Memory 256 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 400 / 400
Status
AC × 3
AC × 30
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
All sample_01.txt, sample_02.txt, sample_03.txt, subtask_1_1.txt, subtask_1_10.txt, subtask_1_11.txt, subtask_1_12.txt, subtask_1_13.txt, subtask_1_14.txt, subtask_1_15.txt, subtask_1_16.txt, subtask_1_17.txt, subtask_1_18.txt, subtask_1_19.txt, subtask_1_2.txt, subtask_1_20.txt, subtask_1_21.txt, subtask_1_22.txt, subtask_1_23.txt, subtask_1_24.txt, subtask_1_25.txt, subtask_1_26.txt, subtask_1_27.txt, subtask_1_3.txt, subtask_1_4.txt, subtask_1_5.txt, subtask_1_6.txt, subtask_1_7.txt, subtask_1_8.txt, subtask_1_9.txt
Case Name Status Exec Time Memory
sample_01.txt AC 1 ms 256 KB
sample_02.txt AC 1 ms 256 KB
sample_03.txt AC 1 ms 256 KB
subtask_1_1.txt AC 3 ms 256 KB
subtask_1_10.txt AC 1 ms 256 KB
subtask_1_11.txt AC 2 ms 256 KB
subtask_1_12.txt AC 7 ms 256 KB
subtask_1_13.txt AC 1 ms 256 KB
subtask_1_14.txt AC 8 ms 256 KB
subtask_1_15.txt AC 10 ms 256 KB
subtask_1_16.txt AC 1 ms 256 KB
subtask_1_17.txt AC 1 ms 256 KB
subtask_1_18.txt AC 5 ms 256 KB
subtask_1_19.txt AC 9 ms 256 KB
subtask_1_2.txt AC 8 ms 256 KB
subtask_1_20.txt AC 1 ms 256 KB
subtask_1_21.txt AC 6 ms 256 KB
subtask_1_22.txt AC 10 ms 256 KB
subtask_1_23.txt AC 1 ms 256 KB
subtask_1_24.txt AC 7 ms 256 KB
subtask_1_25.txt AC 3 ms 256 KB
subtask_1_26.txt AC 8 ms 256 KB
subtask_1_27.txt AC 8 ms 256 KB
subtask_1_3.txt AC 6 ms 256 KB
subtask_1_4.txt AC 8 ms 256 KB
subtask_1_5.txt AC 4 ms 256 KB
subtask_1_6.txt AC 8 ms 256 KB
subtask_1_7.txt AC 7 ms 256 KB
subtask_1_8.txt AC 8 ms 256 KB
subtask_1_9.txt AC 1 ms 256 KB