oj.uz

Submission #583646

# Submission time Handle Problem Language Result Execution time Memory
583646 2022-06-25T20:06:58 Z AGE Političari (COCI20_politicari) C++14
70 / 70
 53 ms 4152 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[1000][1000];
map<pair<int,int>,int>viss;
vector<pair<int,int>>v;
pair<int,int>anss;
main()
{
    v.clear();
    viss.clear();

    int n,m;
    cin>>n>>m;

    for(int i=1;i<=n;i++)
        for(int j=1;j<=n;j++)
            cin>>a[i][j];

    v.pb({0,1});
    v.pb({1,2});

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

    while(1){

        int x=v.size()-1;

        if(viss[{v[x].S,a[v[x].S][v[x].F]}]==1){
            anss.F=v[x].S;
            anss.S=a[v[x].S][v[x].F];
            break;
        }


        viss[{v[x].S,a[v[x].S][v[x].F]}]=1;
        v.pb({v[x].S,a[v[x].S][v[x].F]});

    }

    reverse(v.begin(),v.end());
    while((v.back().F!=anss.F||v.back().S!=anss.S)&&m>1)
         v.pop_back(),m--;

    reverse(v.begin(),v.end());

    if(m==0){

        cout<<v[m].S<<endl;
        return 0;

    }
    int xx=m%v.size();

    if(xx==0)
        xx=v.size();

    xx--;

    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
70.0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 9 ms 1528 KB Output is correct
3 Correct 31 ms 3020 KB Output is correct
4 Correct 38 ms 3604 KB Output is correct
5 Correct 47 ms 4144 KB Output is correct
6 Correct 47 ms 4108 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 4 ms 980 KB Output is correct
9 Correct 11 ms 1680 KB Output is correct
10 Correct 39 ms 3660 KB Output is correct
11 Correct 53 ms 4152 KB Output is correct
12 Correct 51 ms 4144 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 3 ms 948 KB Output is correct