oj.uz

답안 #860866

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
860866 2023-10-14T16:32:09 Z elotelo966 Bosses (BOI16_bosses) C++17
100 / 100
 490 ms 4440 KB 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,avx2,fma")
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define OYY 1000000000005
#define mod 1000000007
#define faster ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define mid (start+end)/2
#define lim 100005
vector<int> v[lim];
int dis[lim],n,vis[lim];

inline int bfs(int node){
    for (int i=1;i<=n;i++){
        dis[i]=OYY;
        vis[i]=0;
    }
    queue <pair<int,int>> pq;
    pq.push({1,node});
    dis[node]=1;
    vis[node]=1;
    //cout<<node<<" "<<dis[node]<<endl;
    while(!pq.empty()){
        int nd=pq.front().second;
        pq.pop();
       // cout<<pq.top().first<<" "<<pq.top().second<<" "<<dis[nd]<<endl;
        for(int i=0;i<v[nd].size();i++){
            if(vis[v[nd][i]])continue;
            dis[v[nd][i]]=min(dis[v[nd][i]],dis[nd]+1);
            vis[v[nd][i]]=1;
            pq.push({-dis[v[nd][i]],v[nd][i]});
        }
    }
    int cev=0;
    for(int i=1;i<=n;i++){
        cev+=dis[i];
    }
   // cout<<cev<<endl;
    return cev;
}

int32_t main(){
    faster
    cin>>n;
    for(int i=1;i<=n;i++){
        int deg,tut;cin>>deg;
        for(int j=0;j<deg;j++){
            cin>>tut;
            v[tut].push_back(i);
        }
    }
    int cev=OYY;
    for(int i=1;i<=n;i++){
        cev=min(cev,bfs(i));
    }
    cout<<cev<<'\n';
    return 0;
}

Compilation message

bosses.cpp: In function 'long long int bfs(long long int)':
bosses.cpp:28:22: 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]
   28 |         for(int i=0;i<v[nd].size();i++){
      |                     ~^~~~~~~~~~~~~

Subtask #1
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4188 KB Output is correct
2 Correct 1 ms 4188 KB Output is correct
3 Correct 2 ms 4188 KB Output is correct
4 Correct 2 ms 4188 KB Output is correct
5 Correct 1 ms 4184 KB Output is correct
6 Correct 1 ms 4144 KB Output is correct

Subtask #2
45.0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4188 KB Output is correct
2 Correct 1 ms 4188 KB Output is correct
3 Correct 2 ms 4188 KB Output is correct
4 Correct 2 ms 4188 KB Output is correct
5 Correct 1 ms 4184 KB Output is correct
6 Correct 1 ms 4144 KB Output is correct
7 Correct 1 ms 4188 KB Output is correct
8 Correct 1 ms 4188 KB Output is correct
9 Correct 1 ms 4188 KB Output is correct
10 Correct 2 ms 4188 KB Output is correct
11 Correct 2 ms 4192 KB Output is correct

Subtask #3
33.0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4188 KB Output is correct
2 Correct 1 ms 4188 KB Output is correct
3 Correct 2 ms 4188 KB Output is correct
4 Correct 2 ms 4188 KB Output is correct
5 Correct 1 ms 4184 KB Output is correct
6 Correct 1 ms 4144 KB Output is correct
7 Correct 1 ms 4188 KB Output is correct
8 Correct 1 ms 4188 KB Output is correct
9 Correct 1 ms 4188 KB Output is correct
10 Correct 2 ms 4188 KB Output is correct
11 Correct 2 ms 4192 KB Output is correct
12 Correct 5 ms 4188 KB Output is correct
13 Correct 4 ms 4188 KB Output is correct
14 Correct 127 ms 4188 KB Output is correct
15 Correct 15 ms 4184 KB Output is correct
16 Correct 490 ms 4408 KB Output is correct
17 Correct 489 ms 4384 KB Output is correct
18 Correct 475 ms 4440 KB Output is correct