oj.uz

Submission #583618

# Submission time Handle Problem Language Result Execution time Memory
583618 2022-06-25T18:44:06 Z AGE Političari (COCI20_politicari) C++14
65 / 70
 51 ms 4292 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();
    anss={0,0};
    viss.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});

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

    while(1){

        int x=v.size()-1;

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


        viss[{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!=anss.F||(*v.rbegin()).S!=anss.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>12);
    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
65.0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 10 ms 1544 KB Output is correct
3 Correct 35 ms 3084 KB Output is correct
4 Correct 43 ms 3584 KB Output is correct
5 Correct 51 ms 4172 KB Output is correct
6 Correct 49 ms 4292 KB Output is correct
7 Incorrect 0 ms 340 KB Output isn't correct
8 Correct 4 ms 952 KB Output is correct
9 Correct 10 ms 1632 KB Output is correct
10 Correct 39 ms 3604 KB Output is correct
11 Correct 49 ms 4256 KB Output is correct
12 Correct 47 ms 4124 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 4 ms 980 KB Output is correct