oj.uz

답안 #583613

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
583613 2022-06-25T18:40:56 Z AGE Političari (COCI20_politicari) C++14
55 / 70
 73 ms 3648 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[510][510];
map<pair<int,int>,int>vis;
vector<pair<int,int>>v;
pair<int,int>ans;
main()
{
    v.clear();
    ans={0,0};
    vis.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});

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

    while(1){

        int x=v.size()-1;

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


        vis[{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]});

    }


    reverse(v.begin(),v.end());
    while((v.size())&&((*v.rbegin()).F!=ans.F||(*v.rbegin()).S!=ans.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
55.0 / 70.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 468 KB Execution killed with signal 6
2 Correct 10 ms 1108 KB Output is correct
3 Runtime error 34 ms 3648 KB Execution killed with signal 6
4 Correct 44 ms 2072 KB Output is correct
5 Correct 52 ms 2312 KB Output is correct
6 Correct 48 ms 2292 KB Output is correct
7 Incorrect 1 ms 340 KB Output isn't correct
8 Correct 4 ms 852 KB Output is correct
9 Correct 11 ms 1232 KB Output is correct
10 Correct 41 ms 2064 KB Output is correct
11 Correct 65 ms 2312 KB Output is correct
12 Correct 73 ms 2292 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 4 ms 736 KB Output is correct