답안 #254831

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
254831	2020-07-30T17:29:03 Z	errorgorn	Fireworks (APIO16_fireworks)	C++14	26 / 100	14 ms	16896 KB

fireworks

//雪花飄飄北風嘯嘯
//天地一片蒼茫
 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>
using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;
#define ll long long
#define ii pair<ll,ll>
#define iii pair<ii,ll>
#define fi first
#define se second
#define endl '\n'
#define debug(x) cout << #x << " is " << x << endl;
 
#define rep(x,start,end) for(auto x=(start)-((start)>(end));x!=(end)-((start)>(end));((start)<(end)?x++:x--))
#define all(x) (x).begin(),(x).end()
#define sz(x) (int)(x).size()
 
ll MAX(ll a){return a;}
ll MIN(ll a){return a;}
template<typename... Args>
ll MAX(ll a,Args... args){return max(a,MAX(args...));}
template<typename... Args>
ll MIN(ll a,Args... args){return min(a,MIN(args...));}
 
#define indexed_set tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update>
 
mt19937 rng(chrono::system_clock::now().time_since_epoch().count());
 
int n,m;
vector<int> al[300005];
ll d[300005];
 
ll w[300005];
priority_queue<ll> pq[300005];
 
void dfs(int i){
	if (i>n){
		pq[i].push(0);
		pq[i].push(0);
	}
	else{
		vector<int> tops;
		
		int grad=-1;
		for (auto &it:al[i]){
			dfs(it);
			d[i]+=d[it];
			grad++;
			
			tops.push_back(pq[it].top());
			if (pq[i].empty()) swap(pq[i],pq[it]);
			else{
				if (sz(pq[i])<sz(pq[it])) swap(pq[i],pq[it]);
				
				while (!pq[it].empty()){
					pq[i].push(pq[it].top());
					pq[it].pop();
				}
			}
		}
		
		for (auto &it:tops) d[i]+=pq[i].top()-it;
		while (grad){
			ll temp=pq[i].top();
			pq[i].pop();
			d[i]-=grad*(temp-pq[i].top());
			grad--;
		}
	}
	
	ll t1,t2;
	t1=pq[i].top(),pq[i].pop();
	t2=pq[i].top(),pq[i].pop();
	pq[i].push(t1+w[i]);
	pq[i].push(t2+w[i]);
}
 
int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	
	cin>>n>>m;
	
	int a,b;
	rep(x,2,n+m+1){
		cin>>a>>b;
		al[a].push_back(x);
		w[x]=b;
	}
	
	dfs(1);
	cout<<d[1]<<endl;
}

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	14 ms	16768 KB	Output is correct
2	Correct	10 ms	16768 KB	Output is correct
3	Correct	10 ms	16768 KB	Output is correct
4	Correct	14 ms	16768 KB	Output is correct
5	Correct	10 ms	16768 KB	Output is correct
6	Correct	10 ms	16768 KB	Output is correct
7	Correct	10 ms	16768 KB	Output is correct
8	Correct	11 ms	16768 KB	Output is correct
9	Correct	11 ms	16768 KB	Output is correct
10	Correct	10 ms	16768 KB	Output is correct

Subtask #2
19.0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	16768 KB	Output is correct
2	Correct	10 ms	16768 KB	Output is correct
3	Correct	10 ms	16768 KB	Output is correct
4	Correct	10 ms	16768 KB	Output is correct
5	Correct	10 ms	16768 KB	Output is correct
6	Correct	10 ms	16768 KB	Output is correct
7	Correct	10 ms	16768 KB	Output is correct
8	Correct	10 ms	16768 KB	Output is correct
9	Correct	10 ms	16768 KB	Output is correct
10	Correct	10 ms	16768 KB	Output is correct
11	Correct	10 ms	16768 KB	Output is correct
12	Correct	11 ms	16896 KB	Output is correct
13	Correct	10 ms	16768 KB	Output is correct
14	Correct	10 ms	16896 KB	Output is correct
15	Correct	10 ms	16768 KB	Output is correct
16	Correct	10 ms	16768 KB	Output is correct
17	Correct	10 ms	16768 KB	Output is correct
18	Correct	10 ms	16768 KB	Output is correct
19	Correct	11 ms	16768 KB	Output is correct

Subtask #3
0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	14 ms	16768 KB	Output is correct
2	Correct	10 ms	16768 KB	Output is correct
3	Correct	10 ms	16768 KB	Output is correct
4	Correct	14 ms	16768 KB	Output is correct
5	Correct	10 ms	16768 KB	Output is correct
6	Correct	10 ms	16768 KB	Output is correct
7	Correct	10 ms	16768 KB	Output is correct
8	Correct	11 ms	16768 KB	Output is correct
9	Correct	11 ms	16768 KB	Output is correct
10	Correct	10 ms	16768 KB	Output is correct
11	Correct	10 ms	16768 KB	Output is correct
12	Correct	10 ms	16768 KB	Output is correct
13	Correct	10 ms	16768 KB	Output is correct
14	Correct	10 ms	16768 KB	Output is correct
15	Correct	10 ms	16768 KB	Output is correct
16	Correct	10 ms	16768 KB	Output is correct
17	Correct	10 ms	16768 KB	Output is correct
18	Correct	10 ms	16768 KB	Output is correct
19	Correct	10 ms	16768 KB	Output is correct
20	Correct	10 ms	16768 KB	Output is correct
21	Correct	10 ms	16768 KB	Output is correct
22	Correct	11 ms	16896 KB	Output is correct
23	Correct	10 ms	16768 KB	Output is correct
24	Correct	10 ms	16896 KB	Output is correct
25	Correct	10 ms	16768 KB	Output is correct
26	Correct	10 ms	16768 KB	Output is correct
27	Correct	10 ms	16768 KB	Output is correct
28	Correct	10 ms	16768 KB	Output is correct
29	Correct	11 ms	16768 KB	Output is correct
30	Incorrect	10 ms	16768 KB	Output isn't correct
31	Halted	0 ms	0 KB	-

Subtask #4
0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	14 ms	16768 KB	Output is correct
2	Correct	10 ms	16768 KB	Output is correct
3	Correct	10 ms	16768 KB	Output is correct
4	Correct	14 ms	16768 KB	Output is correct
5	Correct	10 ms	16768 KB	Output is correct
6	Correct	10 ms	16768 KB	Output is correct
7	Correct	10 ms	16768 KB	Output is correct
8	Correct	11 ms	16768 KB	Output is correct
9	Correct	11 ms	16768 KB	Output is correct
10	Correct	10 ms	16768 KB	Output is correct
11	Correct	10 ms	16768 KB	Output is correct
12	Correct	10 ms	16768 KB	Output is correct
13	Correct	10 ms	16768 KB	Output is correct
14	Correct	10 ms	16768 KB	Output is correct
15	Correct	10 ms	16768 KB	Output is correct
16	Correct	10 ms	16768 KB	Output is correct
17	Correct	10 ms	16768 KB	Output is correct
18	Correct	10 ms	16768 KB	Output is correct
19	Correct	10 ms	16768 KB	Output is correct
20	Correct	10 ms	16768 KB	Output is correct
21	Correct	10 ms	16768 KB	Output is correct
22	Correct	11 ms	16896 KB	Output is correct
23	Correct	10 ms	16768 KB	Output is correct
24	Correct	10 ms	16896 KB	Output is correct
25	Correct	10 ms	16768 KB	Output is correct
26	Correct	10 ms	16768 KB	Output is correct
27	Correct	10 ms	16768 KB	Output is correct
28	Correct	10 ms	16768 KB	Output is correct
29	Correct	11 ms	16768 KB	Output is correct
30	Incorrect	10 ms	16768 KB	Output isn't correct
31	Halted	0 ms	0 KB	-

답안 #254831

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 19.0 / 19.0

Subtask #3 0 / 29.0

Subtask #4 0 / 45.0

Subtask #1
7.0 / 7.0

Subtask #2
19.0 / 19.0

Subtask #3
0 / 29.0

Subtask #4
0 / 45.0