oj.uz

답안 #472289

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
472289 2021-09-13T11:11:06 Z morasha3 Political Development (BOI17_politicaldevelopment) C++17
0 / 100
 9 ms 1356 KB 
#include<bits/stdc++.h>
typedef long long ll;
const ll mod = (ll) 1e9 + 7;
const ll mx = (ll) 1e5 +7;
using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    ll n,k,ans=0;
    cin>>n>>k;
    vector<vector<ll>>v(n);
    map<pair<ll,ll>,ll>m;
    bool r=0;
    for(int i=0; i<n; i++)
    {
        ll a;
        cin>>a;
        for(int j=0; j<a; j++)
        {
            ll b;
            cin>>b;
            v[i].push_back(b);
            v[b].push_back(i);
            m[ {i,b}]=1;
            m[ {b,i}]=1;
            ans=2;
            r=1;
        }
    }
    for(int i=0; i<n; i++)
    { vector<ll>e;
        for(int j=0; j<v[i].size(); j++)
        {
           ll cnt=1;
                bool f=1;
            for(int h=0; h<e.size(); h++)
            {
                if(m[ {v[i][j],e[h]}]==1||m[ {e[h],v[i][j]}]==1)
                {
                    if(f)
                    {
                        cnt++;
                        f=0;
                    }
                    cnt++;
                    if(cnt>=k)break;
                }
            }
            e.push_back(v[i][j]);
            ans=max(ans,cnt);
            if(cnt>=k)break;
        }
        if(ans>=k)break;
    }
    if(ans>k)ans=k;
    if(k==1)ans=0;
    if(k==2&&r==1)ans=2;
    else if(r==0&&k==2)ans=0;
    cout<<ans;
}

Compilation message

politicaldevelopment.cpp: In function 'int main()':
politicaldevelopment.cpp:34:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |         for(int j=0; j<v[i].size(); j++)
      |                      ~^~~~~~~~~~~~
politicaldevelopment.cpp:38:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |             for(int h=0; h<e.size(); h++)
      |                          ~^~~~~~~~~

Subtask #1
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 7 ms 1328 KB Output is correct
4 Correct 6 ms 1356 KB Output is correct
5 Correct 6 ms 1356 KB Output is correct
6 Correct 9 ms 1356 KB Output is correct
7 Correct 7 ms 1356 KB Output is correct
8 Incorrect 1 ms 332 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 7 ms 1328 KB Output is correct
4 Correct 6 ms 1356 KB Output is correct
5 Correct 6 ms 1356 KB Output is correct
6 Correct 9 ms 1356 KB Output is correct
7 Correct 7 ms 1356 KB Output is correct
8 Incorrect 1 ms 332 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #3
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 7 ms 1328 KB Output is correct
4 Correct 6 ms 1356 KB Output is correct
5 Correct 6 ms 1356 KB Output is correct
6 Correct 9 ms 1356 KB Output is correct
7 Correct 7 ms 1356 KB Output is correct
8 Incorrect 1 ms 332 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 7 ms 1328 KB Output is correct
4 Correct 6 ms 1356 KB Output is correct
5 Correct 6 ms 1356 KB Output is correct
6 Correct 9 ms 1356 KB Output is correct
7 Correct 7 ms 1356 KB Output is correct
8 Incorrect 1 ms 332 KB Output isn't correct
9 Halted 0 ms 0 KB -