oj.uz

Submission #583625

# Submission time Handle Problem Language Result Execution time Memory
583625 2022-06-25T18:49:32 Z AGE Političari (COCI20_politicari) C++14
40 / 70
 72 ms 8372 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]});

    }

    assert(v.size()>20);
    reverse(v.begin(),v.end());
    while((v.size())&&((*v.rbegin()).F!=anss.F||(*v.rbegin()).S!=anss.S)&&m>0)
        v.pop_back(),m--;


    int ok=0;
    
    for(int i=0;i<v.size();i++)
        if(v[i].S==51)
            ok=1;
            
    assert(ok!=1);
    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()
      | ^~~~
politicari.cpp: In function 'int main()':
politicari.cpp:55:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |     for(int i=0;i<v.size();i++)
      |                 ~^~~~~~~~~

Subtask #1
40.0 / 70.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 468 KB Execution killed with signal 6
2 Correct 14 ms 1524 KB Output is correct
3 Correct 42 ms 3100 KB Output is correct
4 Correct 55 ms 3616 KB Output is correct
5 Correct 61 ms 4176 KB Output is correct
6 Correct 48 ms 4172 KB Output is correct
7 Incorrect 1 ms 340 KB Output isn't correct
8 Runtime error 8 ms 1748 KB Execution killed with signal 6
9 Runtime error 13 ms 3252 KB Execution killed with signal 6
10 Correct 51 ms 3596 KB Output is correct
11 Runtime error 72 ms 8336 KB Execution killed with signal 6
12 Runtime error 66 ms 8372 KB Execution killed with signal 6
13 Correct 2 ms 468 KB Output is correct
14 Correct 4 ms 980 KB Output is correct