oj.uz

Submission #583645

# Submission time Handle Problem Language Result Execution time Memory
583645 2022-06-25T20:06:32 Z AGE Političari (COCI20_politicari) C++14
60 / 70
 62 ms 4224 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]});

    }

    int ok=0;
    reverse(v.begin(),v.end());
    while((v.back().F!=anss.F||v.back().S!=anss.S)&&m>0)
         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()
      | ^~~~
politicari.cpp: In function 'int main()':
politicari.cpp:46:9: warning: unused variable 'ok' [-Wunused-variable]
   46 |     int ok=0;
      |         ^~

Subtask #1
60.0 / 70.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 340 KB Output isn't correct
2 Correct 10 ms 1512 KB Output is correct
3 Correct 35 ms 3048 KB Output is correct
4 Correct 50 ms 3660 KB Output is correct
5 Correct 57 ms 4224 KB Output is correct
6 Correct 47 ms 4100 KB Output is correct
7 Incorrect 1 ms 340 KB Output isn't correct
8 Correct 3 ms 980 KB Output is correct
9 Correct 12 ms 1620 KB Output is correct
10 Correct 40 ms 3596 KB Output is correct
11 Correct 62 ms 4172 KB Output is correct
12 Correct 57 ms 4172 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 3 ms 980 KB Output is correct