oj.uz

Submission #583204

# Submission time Handle Problem Language Result Execution time Memory
583204 2022-06-25T05:00:08 Z AGE Političari (COCI20_politicari) C++14
65 / 70
 56 ms 2300 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;
main()
{
    int n,m;
    cin>>n>>m;

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

    vector<pair<int,int>>v;
    v.pb({0,1});
    v.pb({1,2});

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

    pair<int,int>ans;
    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.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--;

    cout<<v[xx].S<<endl;
    return 0;
}

Compilation message

politicari.cpp:11:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   11 | main()
      | ^~~~

Subtask #1
65.0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 12 ms 1108 KB Output is correct
3 Correct 31 ms 1792 KB Output is correct
4 Correct 42 ms 2036 KB Output is correct
5 Correct 49 ms 2272 KB Output is correct
6 Correct 56 ms 2272 KB Output is correct
7 Incorrect 1 ms 340 KB Output isn't correct
8 Correct 4 ms 724 KB Output is correct
9 Correct 11 ms 1236 KB Output is correct
10 Correct 42 ms 2104 KB Output is correct
11 Correct 52 ms 2300 KB Output is correct
12 Correct 50 ms 2292 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 3 ms 852 KB Output is correct