Submission #880422

#	Time	Username	Problem	Language	Result	Execution time	Memory
880422		JakobZorz	Bosses (BOI16_bosses)	C++14	0 / 100	0 ms	348 KiB

bosses

#include<iostream>
#include<vector>
#include<queue>
#include<stack>
#include<algorithm>
#include<limits.h>
#include<math.h>
#include<map>
#include<set>
#include<unordered_map>
#include<unordered_set>
#include<iomanip>
#include<cstring>
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
using namespace std;
//const int MOD=1e9+7;
//typedef pair<ll,ll>Point;
//typedef pair<ll,ll>Line;
//#define x first
//#define y second

int n;
vector<int>children[5000];
bool vis[5000];
int pay[5000];

int dfs(int node){
    vis[node]=true;
    int res=1;
    for(int ch:children[node]){
        if(!vis[ch]){
            res+=dfs(ch);
        }
    }
    pay[node]=res;
    return res;
}

int get(int root){
    for(int i=0;i<n;i++)
        vis[i]=false;
    dfs(root);
    for(int i=0;i<n;i++)
        if(!vis[i])
            return 1e9;
    int res=0;
    for(int i=0;i<n;i++)
        res+=pay[i];
    return res;
}

void solve(){
    cin>>n;
    for(int i=0;i<n;i++){
        int k;
        cin>>k;
        while(k--){
            int c;
            cin>>c;
            children[c-1].push_back(i);
        }
    }
    
    int res=1e9;
    for(int i=0;i<n;i++){
        res=min(res,get(i));
    }
    cout<<res<<"\n";
}

int main(){
    ios::sync_with_stdio(false);cout.tie(NULL);cin.tie(NULL);
    //freopen("bank.in","r",stdin);freopen("bank.out","w",stdout);
    int t=1;//cin>>t;
    while(t--)solve();
    return 0;
}

/*
 
4
1 4
3 1 3 4
2 1 2
1 3
 
 */

• Subtask 1: 0 / 22
• Subtask 2: 0 / 45
• Subtask 3: 0 / 33