oj.uz

Submission #880443

# Submission time Handle Problem Language Result Execution time Memory
880443 2023-11-29T12:35:16 Z JakobZorz Bosses (BOI16_bosses) C++14
67 / 100
 1500 ms 1236 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];
vector<vector<int>>childs;
vector<int>pay;

void dfs(int node){
    pay[node]=1;
    for(int ch:childs[node]){
        dfs(ch);
        pay[node]+=pay[ch];
    }
}

int get(int root){
    vector<bool>vis(n);
    childs=vector<vector<int>>(n,vector<int>());
    pay=vector<int>(n);
    unordered_set<int>level1,level2;
    level1.insert(root);
    vis[root]=true;
    while(!level1.empty()){
        for(int i:level1){
            for(int j:children[i]){
                if(level2.find(j)==level2.end()&&!vis[j]){
                    level2.insert(j);
                    vis[j]=true;
                    childs[i].push_back(j);
                }
            }
        }
        level1=level2;
        level2.clear();
    }
    for(int i=0;i<n;i++)
        if(!vis[i])
            return 1e9;
    dfs(root);
    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
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 2 ms 348 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 2 ms 348 KB Output is correct
12 Correct 16 ms 664 KB Output is correct
13 Correct 14 ms 676 KB Output is correct
14 Correct 744 ms 1228 KB Output is correct
15 Correct 86 ms 1036 KB Output is correct
16 Execution timed out 1571 ms 1236 KB Time limit exceeded
17 Halted 0 ms 0 KB -