oj.uz

Submission #583636

# Submission time Handle Problem Language Result Execution time Memory
583636 2022-06-25T19:46:33 Z AGE Političari (COCI20_politicari) C++14
65 / 70
 53 ms 4236 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());

    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
65.0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 10 ms 1560 KB Output is correct
3 Correct 29 ms 3084 KB Output is correct
4 Correct 39 ms 3660 KB Output is correct
5 Correct 48 ms 4176 KB Output is correct
6 Correct 53 ms 4212 KB Output is correct
7 Incorrect 1 ms 340 KB Output isn't correct
8 Correct 4 ms 980 KB Output is correct
9 Correct 9 ms 1708 KB Output is correct
10 Correct 38 ms 3668 KB Output is correct
11 Correct 48 ms 4200 KB Output is correct
12 Correct 46 ms 4236 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 4 ms 980 KB Output is correct