oj.uz

Submission #583611

# Submission time Handle Problem Language Result Execution time Memory
583611 2022-06-25T18:39:53 Z AGE Političari (COCI20_politicari) C++14
55 / 70
 53 ms 3624 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>15);
    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 1212 KB Output is correct
3 Runtime error 32 ms 3624 KB Execution killed with signal 6
4 Correct 38 ms 2088 KB Output is correct
5 Correct 49 ms 2292 KB Output is correct
6 Correct 51 ms 2252 KB Output is correct
7 Runtime error 1 ms 596 KB Execution killed with signal 6
8 Correct 4 ms 760 KB Output is correct
9 Correct 11 ms 1236 KB Output is correct
10 Correct 52 ms 2068 KB Output is correct
11 Correct 53 ms 2320 KB Output is correct
12 Correct 51 ms 2276 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 4 ms 852 KB Output is correct