Submission #779757

#	Time	Username	Problem	Language	Result	Execution time	Memory
779757		Sandarach151	Bosses (BOI16_bosses)	C++17	0 / 100	1 ms	212 KiB

bosses

#include<bits/stdc++.h>
using namespace std;
 
vector<vector<long long>> adg;
vector<vector<long long>> adgtree;
 
void dfs(long long cur, long long salary[]){
    if(adgtree[cur].empty()){
		salary[cur]= 1;
    }
    else{
        long long cnt = 0;
        for(auto next : adgtree[cur]){
            dfs(next, salary);
            cnt+=salary[next];
        }
        salary[cur]=cnt+1;
    }
}
 
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    long long n;
    cin >> n;
    adg.resize(n);
    for(long long i=0; i<n; i++){
        long long a;
        cin >> a;
        for(long long j=0; j<a; j++){
            long long b;
            cin >> b;
            adg[b-1].push_back(i);
        }
    }
    long long ans = -1;
    for(long long root = 0; root<n; root++){
        bool vsted[n] = {false};
        adgtree.clear();
        adgtree.resize(n);
        queue<int> que;
        que.push(root);
        vsted[root]=true;
        while(!que.empty()){
            long long cur = que.front();
            que.pop();
            for(auto u : adg[cur]){
                if(!vsted[u]){
                    vsted[u]=true;
                    adgtree[cur].push_back(u);
                    que.push(u);
                }
            }
        }
        long long salary[n];
        dfs(root, salary);
        long long curans = 0;
        for(long long i=0; i<n; i++){
			curans+=salary[i];
		}
      if(ans==-1){
        ans = curans;
      }
      else{
		ans = min(ans, curans);        
      }
    }
    cout << ans << '\n';
  	return 0;
}

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