oj.uz

답안 #472546

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
472546 2021-09-13T17:36:54 Z ZaZo_ Political Development (BOI17_politicaldevelopment) C++14
4 / 100
 1339 ms 2220 KB 
#include <bits/stdc++.h>
#define ZAZO ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define int long long
using namespace std;
vector<int>edges[50001];
int vis[50001]={0};
int mx=1,n,k;
void dfs(int node , int cnt)
{
  if(vis[node])
  {
    mx=max(min(cnt,k),mx);
    return ;
  }
  vis[node] = 1;
  if(mx>k) return ;
  for(int i = 0 ; i < edges[node].size(); i ++)
  {
      dfs(edges[node][i],cnt+1);
  }
}
int32_t main() {
  ZAZO
  cin >> n >> k ;
  for(int i = 0 ; i < n ; i ++)
  {
    int d;
    cin>>d;
    for(int j = 0 ; j < d ; j ++)
    {
      int x; cin>>x;
      edges[i].push_back(x);
      edges[x].push_back(i);
    }
  }
  for(int i = 0 ; i < n ; i ++)
  {
    dfs(i,0);
    memset(vis,0,sizeof vis);
  }
  cout<<mx<<endl;
}

Compilation message

politicaldevelopment.cpp: In function 'void dfs(long long int, long long int)':
politicaldevelopment.cpp:17:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |   for(int i = 0 ; i < edges[node].size(); i ++)
      |                   ~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1868 KB Output is correct
2 Correct 1 ms 1868 KB Output is correct
3 Correct 1339 ms 2132 KB Output is correct
4 Correct 900 ms 2176 KB Output is correct
5 Correct 914 ms 2180 KB Output is correct
6 Correct 973 ms 2220 KB Output is correct
7 Correct 933 ms 2212 KB Output is correct
8 Correct 67 ms 1868 KB Output is correct
9 Correct 1 ms 1868 KB Output is correct
10 Correct 71 ms 1868 KB Output is correct

Subtask #2
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1868 KB Output is correct
2 Correct 1 ms 1868 KB Output is correct
3 Correct 1339 ms 2132 KB Output is correct
4 Correct 900 ms 2176 KB Output is correct
5 Correct 914 ms 2180 KB Output is correct
6 Correct 973 ms 2220 KB Output is correct
7 Correct 933 ms 2212 KB Output is correct
8 Correct 67 ms 1868 KB Output is correct
9 Correct 1 ms 1868 KB Output is correct
10 Correct 71 ms 1868 KB Output is correct
11 Correct 917 ms 2184 KB Output is correct
12 Incorrect 955 ms 2180 KB Output isn't correct
13 Halted 0 ms 0 KB -

Subtask #3
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 67 ms 1868 KB Output is correct
2 Incorrect 2 ms 1868 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1868 KB Output is correct
2 Correct 1 ms 1868 KB Output is correct
3 Correct 1339 ms 2132 KB Output is correct
4 Correct 900 ms 2176 KB Output is correct
5 Correct 914 ms 2180 KB Output is correct
6 Correct 973 ms 2220 KB Output is correct
7 Correct 933 ms 2212 KB Output is correct
8 Correct 67 ms 1868 KB Output is correct
9 Correct 1 ms 1868 KB Output is correct
10 Correct 71 ms 1868 KB Output is correct
11 Correct 917 ms 2184 KB Output is correct
12 Incorrect 955 ms 2180 KB Output isn't correct
13 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1868 KB Output is correct
2 Correct 1 ms 1868 KB Output is correct
3 Correct 1339 ms 2132 KB Output is correct
4 Correct 900 ms 2176 KB Output is correct
5 Correct 914 ms 2180 KB Output is correct
6 Correct 973 ms 2220 KB Output is correct
7 Correct 933 ms 2212 KB Output is correct
8 Correct 67 ms 1868 KB Output is correct
9 Correct 1 ms 1868 KB Output is correct
10 Correct 71 ms 1868 KB Output is correct
11 Correct 917 ms 2184 KB Output is correct
12 Incorrect 955 ms 2180 KB Output isn't correct
13 Halted 0 ms 0 KB -