oj.uz

Submission #583608

# Submission time Handle Problem Language Result Execution time Memory
583608 2022-06-25T18:38:27 Z AGE Političari (COCI20_politicari) C++14
55 / 70
 49 ms 3708 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>25);
    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 1112 KB Output is correct
3 Runtime error 32 ms 3708 KB Execution killed with signal 6
4 Correct 42 ms 1996 KB Output is correct
5 Correct 48 ms 2220 KB Output is correct
6 Correct 49 ms 2232 KB Output is correct
7 Runtime error 1 ms 596 KB Execution killed with signal 6
8 Correct 6 ms 724 KB Output is correct
9 Correct 11 ms 1244 KB Output is correct
10 Correct 38 ms 2004 KB Output is correct
11 Correct 48 ms 2256 KB Output is correct
12 Correct 47 ms 2304 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 5 ms 852 KB Output is correct