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Submission #113328

# Submission time Handle Problem Language Result Execution time Memory
113328 2019-05-25T05:19:50 Z ckodser Bosses (BOI16_bosses) C++14
100 / 100
 556 ms 764 KB 
#include<bits/stdc++.h>

#define ll int
#define pb push_back
#define mp make_pair
#define ld long double
#define F first
#define S second
#define pii pair<ll,ll> 

using namespace :: std;

const ll mod=1e9+7;
const ll maxn=5500;
const ll inf=1e9+900;


vector<ll> ger[maxn];
ll h[maxn];
bool vis[maxn];

ll find_min(ll a,ll n){
    memset(vis,0,sizeof vis);
    queue<ll> qu;
    h[a]=1;
    vis[a]=1;
    ll cnt=1;
    ll ans=1;
    qu.push(a);
    while(qu.size()){
	ll v=qu.front();
	qu.pop();
	for(auto u:ger[v]){
	    if(!vis[u]){
		vis[u]=1;
		qu.push(u);
		h[u]=h[v]+1;
		ans+=h[u];
		cnt++;
	    }
	}
    }
    if(cnt!=n)return inf;
    return ans;
}
int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    ll n,m;
    cin>>n;
    for(ll i=1;i<=n;i++){
	ll k;
	cin>>k;
	while(k--){
	    ll v;
	    cin>>v;
	    ger[v].pb(i);
	}
    }
    ll ans=inf;
    for(ll i=1;i<=n;i++){
	ans=min(ans,find_min(i,n));
    }
    cout<<ans;
}

Compilation message

bosses.cpp: In function 'int main()':
bosses.cpp:48:10: warning: unused variable 'm' [-Wunused-variable]
     ll n,m;
          ^

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 512 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 2 ms 512 KB Output is correct
4 Correct 2 ms 512 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 512 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 2 ms 512 KB Output is correct
4 Correct 2 ms 512 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 2 ms 512 KB Output is correct
8 Correct 2 ms 512 KB Output is correct
9 Correct 2 ms 512 KB Output is correct
10 Correct 2 ms 512 KB Output is correct
11 Correct 3 ms 512 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 512 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 2 ms 512 KB Output is correct
4 Correct 2 ms 512 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 2 ms 512 KB Output is correct
8 Correct 2 ms 512 KB Output is correct
9 Correct 2 ms 512 KB Output is correct
10 Correct 2 ms 512 KB Output is correct
11 Correct 3 ms 512 KB Output is correct
12 Correct 6 ms 512 KB Output is correct
13 Correct 5 ms 512 KB Output is correct
14 Correct 110 ms 632 KB Output is correct
15 Correct 5 ms 512 KB Output is correct
16 Correct 556 ms 640 KB Output is correct
17 Correct 553 ms 764 KB Output is correct
18 Correct 546 ms 760 KB Output is correct