oj.uz

Submission #583616

# Submission time Handle Problem Language Result Execution time Memory
583616 2022-06-25T18:41:36 Z AGE Političari (COCI20_politicari) C++14
55 / 70
 65 ms 3668 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

# Verdict Execution time Memory 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 46 ms 3668 KB Execution killed with signal 6
4 Correct 43 ms 1992 KB Output is correct
5 Correct 65 ms 2240 KB Output is correct
6 Correct 59 ms 2256 KB Output is correct
7 Incorrect 1 ms 340 KB Output isn't correct
8 Correct 8 ms 852 KB Output is correct
9 Correct 17 ms 1256 KB Output is correct
10 Correct 44 ms 2012 KB Output is correct
11 Correct 58 ms 2312 KB Output is correct
12 Correct 52 ms 2256 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 4 ms 852 KB Output is correct