Submission #1125136

#	Time	Username	Problem	Language	Result	Execution time	Memory
1125136		raul2008487	Bosses (BOI16_bosses)	C++20	100 / 100	397 ms	5336 KiB

bosses

#include<bits/stdc++.h>

#define ll long long
#define pb push_back
#define in insert
#define fi first
#define se second
#define vl vector<ll>
#define all(v) v.begin(), v.end()
#define endl "\n"

using namespace std;
const int sz = 2e5 + 5; /// mind this
const int MAX = 5005;
const int BS = 61;
const int mod = 1e9 + 7;
const long long inf  = (1e17);
vl e[sz];
bool used[sz];
void solve(){
    ll n, i, j, k, x, res = inf;
    cin >> n;
    for(i = 1; i <= n; i++){
        cin >> k;
        while(k --){
            cin >> x;
            e[x].pb(i);
        }
    }
    for(i = 1; i <= n; i++){
        deque<array<ll, 2>> dq;
        used[i] = 1;
        ll ans = 0;
        dq.push_back({i, 1});
        while(!dq.empty()){
            ll cur = dq.back()[0], cd = dq.back()[1];
            ans += cd;
            dq.pop_back();
            for(auto to: e[cur]){
                if(!used[to]){
                    dq.push_front({to, cd + 1});
                    used[to] = 1;
                }
            }
        }
        bool f = 1;
        for(j = 1; j <= n; j++){
            f &= used[j];
            used[j] = 0;
        }
        if(f){
            res = min(res, ans);
        }
    }
    cout << res << endl;
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    ll t = 1;
    // cin >> t;
    while(t--){
        solve();
    }
}

/*
*/

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