oj.uz

Submission #583606

# Submission time Handle Problem Language Result Execution time Memory
583606 2022-06-25T18:36:41 Z AGE Političari (COCI20_politicari) C++14
60 / 70
 60 ms 2324 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>1);
    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

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 468 KB Execution killed with signal 6
2 Correct 9 ms 1108 KB Output is correct
3 Correct 31 ms 1856 KB Output is correct
4 Correct 41 ms 2052 KB Output is correct
5 Correct 60 ms 2200 KB Output is correct
6 Correct 55 ms 2252 KB Output is correct
7 Incorrect 1 ms 340 KB Output isn't correct
8 Correct 3 ms 852 KB Output is correct
9 Correct 10 ms 1236 KB Output is correct
10 Correct 37 ms 2036 KB Output is correct
11 Correct 45 ms 2252 KB Output is correct
12 Correct 47 ms 2324 KB Output is correct
13 Correct 1 ms 540 KB Output is correct
14 Correct 3 ms 852 KB Output is correct