oj.uz

Submission #583632

# Submission time Handle Problem Language Result Execution time Memory
583632 2022-06-25T19:40:57 Z AGE Političari (COCI20_politicari) C++14
65 / 70
 60 ms 4204 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.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--;

    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 9 ms 1492 KB Output is correct
3 Correct 33 ms 3108 KB Output is correct
4 Correct 42 ms 3664 KB Output is correct
5 Correct 50 ms 4120 KB Output is correct
6 Correct 47 ms 4128 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 11 ms 1620 KB Output is correct
10 Correct 39 ms 3596 KB Output is correct
11 Correct 51 ms 4204 KB Output is correct
12 Correct 60 ms 4184 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 6 ms 896 KB Output is correct