oj.uz

답안 #583623

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
583623 2022-06-25T18:48:21 Z AGE Političari (COCI20_politicari) C++14
60 / 70
 63 ms 4180 KB 
#include<bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define int long long
using namespace std;
const int N=1e6,M=2e3,mod=1e9+7;
int a[1000][1000];
map<pair<int,int>,int>viss;
vector<pair<int,int>>v;
pair<int,int>anss;
main()
{
    v.clear();
    anss={0,0};
    viss.clear();

    int n,m;
    cin>>n>>m;

    for(int i=0;i<n;i++)
        for(int j=0;j<n;j++)
            cin>>a[i][j];

    v.pb({0,1});
    v.pb({1,2});

    viss[{0,1}]=1;
    viss[{1,2}]=1;

    while(1){

        int x=v.size()-1;

        if(viss[{v[x].S,a[v[x].S-1][v[x].F-1]}]==1){
            anss.F=v[x].S;
            anss.S=a[v[x].S-1][v[x].F-1];
            break;
        }


        viss[{v[x].S,a[v[x].S-1][v[x].F-1]}]=1;
        v.pb({v[x].S,a[v[x].S-1][v[x].F-1]});

    }

    assert(v.size()>20);
    reverse(v.begin(),v.end());
    while((v.size())&&((*v.rbegin()).F!=anss.F||(*v.rbegin()).S!=anss.S)&&m>0)
        v.pop_back(),m--;


    reverse(v.begin(),v.end());

    int xx=m%v.size();

    if(xx==0)
        xx=v.size();

    xx--;

   // assert(v[xx].S>12);
    cout<<v[xx].S<<endl;

    return 0;
}

Compilation message

politicari.cpp:12:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   12 | main()
      | ^~~~

Subtask #1
60.0 / 70.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 468 KB Execution killed with signal 6
2 Correct 10 ms 1528 KB Output is correct
3 Correct 30 ms 3060 KB Output is correct
4 Correct 39 ms 3656 KB Output is correct
5 Correct 63 ms 4172 KB Output is correct
6 Correct 51 ms 4128 KB Output is correct
7 Incorrect 1 ms 340 KB Output isn't correct
8 Correct 4 ms 980 KB Output is correct
9 Correct 10 ms 1668 KB Output is correct
10 Correct 42 ms 3584 KB Output is correct
11 Correct 47 ms 4140 KB Output is correct
12 Correct 50 ms 4180 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 4 ms 980 KB Output is correct