oj.uz

Submission #880432

# Submission time Handle Problem Language Result Execution time Memory
880432 2023-11-29T12:19:28 Z JakobZorz Bosses (BOI16_bosses) C++14
0 / 100
 0 ms 600 KB 
#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){
    int res=1;
    vector<int>chs;
    for(int ch:children[node])
        if(!vis[ch]){
            vis[ch]=true;
            chs.push_back(ch);
        }
        
    for(int ch:chs){
        res+=dfs(ch);
    }
    pay[node]=res;
    return res;
}

int get(int root){
    for(int i=0;i<n;i++)
        vis[i]=false;
    vis[root]=true;
    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 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -