Submission #254832

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
254832	2020-07-30T17:29:28 Z	errorgorn	Fireworks (APIO16_fireworks)	C++14	100 / 100	301 ms	73336 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<ll> 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

#	Verdict	Execution time	Memory	Grader output
1	Correct	10 ms	16768 KB	Output is correct
2	Correct	11 ms	16768 KB	Output is correct
3	Correct	11 ms	16768 KB	Output is correct
4	Correct	15 ms	16768 KB	Output is correct
5	Correct	11 ms	16768 KB	Output is correct
6	Correct	10 ms	16768 KB	Output is correct
7	Correct	13 ms	16768 KB	Output is correct
8	Correct	11 ms	16768 KB	Output is correct
9	Correct	13 ms	16768 KB	Output is correct
10	Correct	9 ms	16768 KB	Output is correct

Subtask #2
19.0 / 19.0

#	Verdict	Execution time	Memory	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	13 ms	16768 KB	Output is correct
5	Correct	13 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	13 ms	16768 KB	Output is correct
9	Correct	12 ms	16768 KB	Output is correct
10	Correct	11 ms	16768 KB	Output is correct
11	Correct	12 ms	16768 KB	Output is correct
12	Correct	10 ms	16768 KB	Output is correct
13	Correct	11 ms	16768 KB	Output is correct
14	Correct	11 ms	16896 KB	Output is correct
15	Correct	14 ms	16768 KB	Output is correct
16	Correct	11 ms	16768 KB	Output is correct
17	Correct	11 ms	16768 KB	Output is correct
18	Correct	11 ms	16768 KB	Output is correct
19	Correct	11 ms	16792 KB	Output is correct

Subtask #3
29.0 / 29.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	10 ms	16768 KB	Output is correct
2	Correct	11 ms	16768 KB	Output is correct
3	Correct	11 ms	16768 KB	Output is correct
4	Correct	15 ms	16768 KB	Output is correct
5	Correct	11 ms	16768 KB	Output is correct
6	Correct	10 ms	16768 KB	Output is correct
7	Correct	13 ms	16768 KB	Output is correct
8	Correct	11 ms	16768 KB	Output is correct
9	Correct	13 ms	16768 KB	Output is correct
10	Correct	9 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	13 ms	16768 KB	Output is correct
15	Correct	13 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	13 ms	16768 KB	Output is correct
19	Correct	12 ms	16768 KB	Output is correct
20	Correct	11 ms	16768 KB	Output is correct
21	Correct	12 ms	16768 KB	Output is correct
22	Correct	10 ms	16768 KB	Output is correct
23	Correct	11 ms	16768 KB	Output is correct
24	Correct	11 ms	16896 KB	Output is correct
25	Correct	14 ms	16768 KB	Output is correct
26	Correct	11 ms	16768 KB	Output is correct
27	Correct	11 ms	16768 KB	Output is correct
28	Correct	11 ms	16768 KB	Output is correct
29	Correct	11 ms	16792 KB	Output is correct
30	Correct	14 ms	16768 KB	Output is correct
31	Correct	12 ms	16860 KB	Output is correct
32	Correct	12 ms	16896 KB	Output is correct
33	Correct	13 ms	17024 KB	Output is correct
34	Correct	13 ms	17024 KB	Output is correct
35	Correct	16 ms	17024 KB	Output is correct
36	Correct	12 ms	17024 KB	Output is correct
37	Correct	14 ms	17152 KB	Output is correct
38	Correct	12 ms	17152 KB	Output is correct
39	Correct	13 ms	17152 KB	Output is correct
40	Correct	15 ms	17664 KB	Output is correct
41	Correct	13 ms	17664 KB	Output is correct
42	Correct	18 ms	17152 KB	Output is correct
43	Correct	14 ms	17408 KB	Output is correct
44	Correct	14 ms	17280 KB	Output is correct
45	Correct	16 ms	17280 KB	Output is correct
46	Correct	13 ms	17280 KB	Output is correct
47	Correct	13 ms	17280 KB	Output is correct
48	Correct	13 ms	17152 KB	Output is correct
49	Correct	13 ms	17152 KB	Output is correct
50	Correct	13 ms	17152 KB	Output is correct
51	Correct	12 ms	17152 KB	Output is correct
52	Correct	12 ms	17152 KB	Output is correct
53	Correct	13 ms	17280 KB	Output is correct
54	Correct	15 ms	17280 KB	Output is correct

Subtask #4
45.0 / 45.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	10 ms	16768 KB	Output is correct
2	Correct	11 ms	16768 KB	Output is correct
3	Correct	11 ms	16768 KB	Output is correct
4	Correct	15 ms	16768 KB	Output is correct
5	Correct	11 ms	16768 KB	Output is correct
6	Correct	10 ms	16768 KB	Output is correct
7	Correct	13 ms	16768 KB	Output is correct
8	Correct	11 ms	16768 KB	Output is correct
9	Correct	13 ms	16768 KB	Output is correct
10	Correct	9 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	13 ms	16768 KB	Output is correct
15	Correct	13 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	13 ms	16768 KB	Output is correct
19	Correct	12 ms	16768 KB	Output is correct
20	Correct	11 ms	16768 KB	Output is correct
21	Correct	12 ms	16768 KB	Output is correct
22	Correct	10 ms	16768 KB	Output is correct
23	Correct	11 ms	16768 KB	Output is correct
24	Correct	11 ms	16896 KB	Output is correct
25	Correct	14 ms	16768 KB	Output is correct
26	Correct	11 ms	16768 KB	Output is correct
27	Correct	11 ms	16768 KB	Output is correct
28	Correct	11 ms	16768 KB	Output is correct
29	Correct	11 ms	16792 KB	Output is correct
30	Correct	14 ms	16768 KB	Output is correct
31	Correct	12 ms	16860 KB	Output is correct
32	Correct	12 ms	16896 KB	Output is correct
33	Correct	13 ms	17024 KB	Output is correct
34	Correct	13 ms	17024 KB	Output is correct
35	Correct	16 ms	17024 KB	Output is correct
36	Correct	12 ms	17024 KB	Output is correct
37	Correct	14 ms	17152 KB	Output is correct
38	Correct	12 ms	17152 KB	Output is correct
39	Correct	13 ms	17152 KB	Output is correct
40	Correct	15 ms	17664 KB	Output is correct
41	Correct	13 ms	17664 KB	Output is correct
42	Correct	18 ms	17152 KB	Output is correct
43	Correct	14 ms	17408 KB	Output is correct
44	Correct	14 ms	17280 KB	Output is correct
45	Correct	16 ms	17280 KB	Output is correct
46	Correct	13 ms	17280 KB	Output is correct
47	Correct	13 ms	17280 KB	Output is correct
48	Correct	13 ms	17152 KB	Output is correct
49	Correct	13 ms	17152 KB	Output is correct
50	Correct	13 ms	17152 KB	Output is correct
51	Correct	12 ms	17152 KB	Output is correct
52	Correct	12 ms	17152 KB	Output is correct
53	Correct	13 ms	17280 KB	Output is correct
54	Correct	15 ms	17280 KB	Output is correct
55	Correct	18 ms	17792 KB	Output is correct
56	Correct	48 ms	20472 KB	Output is correct
57	Correct	79 ms	23164 KB	Output is correct
58	Correct	100 ms	24816 KB	Output is correct
59	Correct	135 ms	27632 KB	Output is correct
60	Correct	184 ms	30276 KB	Output is correct
61	Correct	197 ms	32500 KB	Output is correct
62	Correct	224 ms	34028 KB	Output is correct
63	Correct	279 ms	37228 KB	Output is correct
64	Correct	301 ms	38100 KB	Output is correct
65	Correct	160 ms	73336 KB	Output is correct
66	Correct	162 ms	73336 KB	Output is correct
67	Correct	162 ms	35832 KB	Output is correct
68	Correct	200 ms	54504 KB	Output is correct
69	Correct	230 ms	51304 KB	Output is correct
70	Correct	239 ms	51304 KB	Output is correct
71	Correct	228 ms	45968 KB	Output is correct
72	Correct	226 ms	46432 KB	Output is correct
73	Correct	198 ms	42464 KB	Output is correct
74	Correct	198 ms	42592 KB	Output is correct
75	Correct	194 ms	41588 KB	Output is correct
76	Correct	199 ms	41460 KB	Output is correct
77	Correct	205 ms	41464 KB	Output is correct
78	Correct	201 ms	39496 KB	Output is correct
79	Correct	183 ms	42340 KB	Output is correct

Submission #254832

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 19.0 / 19.0

Subtask #3 29.0 / 29.0

Subtask #4 45.0 / 45.0

Subtask #1
7.0 / 7.0

Subtask #2
19.0 / 19.0

Subtask #3
29.0 / 29.0

Subtask #4
45.0 / 45.0