Submission #389172

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
389172	2021-04-13T19:24:08 Z	mosiashvililuka	Beads and wires (APIO14_beads)	C++14	100 / 100	448 ms	44764 KB

beads

#include<bits/stdc++.h>
using namespace std;
const long long N=1000000000000000000LL;
long long a,b,c,d,e,i,j,ii,jj,zx,xc,pas,dp[200009],dp2[200009];
pair <long long, long long> msh[200009];
vector <pair <long long, long long> > v[200009];
multiset <long long> s[200009];
multiset <long long>::iterator tt;
void dfsst(long long q, long long w){
	long long qw=-N;
	for(vector <pair <long long, long long> >::iterator it=v[q].begin(); it!=v[q].end(); it++){
		if((*it).first==w) continue;
		msh[(*it).first]=make_pair(q,(*it).second);
		dfsst((*it).first,q);
		dp[q]+=max(dp[(*it).first],dp2[(*it).first]);
		if(qw<(*it).second+dp[(*it).first]-max(dp[(*it).first],dp2[(*it).first])) qw=(*it).second+dp[(*it).first]-max(dp[(*it).first],dp2[(*it).first]);
		s[q].insert((*it).second+dp[(*it).first]-max(dp[(*it).first],dp2[(*it).first]));
	}
	if(qw!=-N){
		dp2[q]=msh[q].second+dp[q]+qw;
	}else{
		dp2[q]=-N;
	}
}
void rt(long long q, long long w){
	dp[q]-=max(dp[w],dp2[w]);
	long long qw=msh[w].second+dp[w]-max(dp[w],dp2[w]);
	s[q].erase(s[q].lower_bound(qw));
	msh[q].first=w;msh[q].second=msh[w].second;
	if(s[q].size()!=0){
		tt=s[q].end();
		tt--;
		dp2[q]=msh[q].second+dp[q]+(*tt);
	}else{
		dp2[q]=-N;
	}
	s[w].insert(msh[q].second+dp[q]-max(dp[q],dp2[q]));
	dp[w]+=max(dp[q],dp2[q]);
}
void dfs(long long q, long long w){
	pas=max(pas,dp[q]);
	for(vector <pair <long long, long long> >::iterator it=v[q].begin(); it!=v[q].end(); it++){
		if((*it).first==w) continue;
		rt(q,(*it).first);
		dfs((*it).first,q);
		rt((*it).first,q);
	}
}
int main(){
	ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
	cin>>a;
	for(i=1; i<a; i++){
		cin>>c>>d>>e;
		v[c].push_back(make_pair(d,e));
		v[d].push_back(make_pair(c,e));
	}
	dfsst(1,0);
	dfs(1,0);
	cout<<pas;
	return 0;
}

Subtask #1
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	14412 KB	Output is correct
2	Correct	9 ms	14428 KB	Output is correct
3	Correct	8 ms	14412 KB	Output is correct
4	Correct	8 ms	14396 KB	Output is correct
5	Correct	8 ms	14412 KB	Output is correct
6	Correct	9 ms	14412 KB	Output is correct
7	Correct	8 ms	14412 KB	Output is correct
8	Correct	8 ms	14412 KB	Output is correct
9	Correct	8 ms	14412 KB	Output is correct
10	Correct	9 ms	14412 KB	Output is correct
11	Correct	8 ms	14412 KB	Output is correct
12	Correct	8 ms	14424 KB	Output is correct

Subtask #2
15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	14412 KB	Output is correct
2	Correct	9 ms	14428 KB	Output is correct
3	Correct	8 ms	14412 KB	Output is correct
4	Correct	8 ms	14396 KB	Output is correct
5	Correct	8 ms	14412 KB	Output is correct
6	Correct	9 ms	14412 KB	Output is correct
7	Correct	8 ms	14412 KB	Output is correct
8	Correct	8 ms	14412 KB	Output is correct
9	Correct	8 ms	14412 KB	Output is correct
10	Correct	9 ms	14412 KB	Output is correct
11	Correct	8 ms	14412 KB	Output is correct
12	Correct	8 ms	14424 KB	Output is correct
13	Correct	9 ms	14412 KB	Output is correct
14	Correct	9 ms	14344 KB	Output is correct
15	Correct	9 ms	14336 KB	Output is correct
16	Correct	9 ms	14412 KB	Output is correct
17	Correct	9 ms	14412 KB	Output is correct
18	Correct	9 ms	14412 KB	Output is correct
19	Correct	9 ms	14412 KB	Output is correct
20	Correct	9 ms	14540 KB	Output is correct
21	Correct	9 ms	14412 KB	Output is correct
22	Correct	9 ms	14452 KB	Output is correct

Subtask #3
29.0 / 29.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	14412 KB	Output is correct
2	Correct	9 ms	14428 KB	Output is correct
3	Correct	8 ms	14412 KB	Output is correct
4	Correct	8 ms	14396 KB	Output is correct
5	Correct	8 ms	14412 KB	Output is correct
6	Correct	9 ms	14412 KB	Output is correct
7	Correct	8 ms	14412 KB	Output is correct
8	Correct	8 ms	14412 KB	Output is correct
9	Correct	8 ms	14412 KB	Output is correct
10	Correct	9 ms	14412 KB	Output is correct
11	Correct	8 ms	14412 KB	Output is correct
12	Correct	8 ms	14424 KB	Output is correct
13	Correct	9 ms	14412 KB	Output is correct
14	Correct	9 ms	14344 KB	Output is correct
15	Correct	9 ms	14336 KB	Output is correct
16	Correct	9 ms	14412 KB	Output is correct
17	Correct	9 ms	14412 KB	Output is correct
18	Correct	9 ms	14412 KB	Output is correct
19	Correct	9 ms	14412 KB	Output is correct
20	Correct	9 ms	14540 KB	Output is correct
21	Correct	9 ms	14412 KB	Output is correct
22	Correct	9 ms	14452 KB	Output is correct
23	Correct	12 ms	15052 KB	Output is correct
24	Correct	13 ms	15052 KB	Output is correct
25	Correct	13 ms	15052 KB	Output is correct
26	Correct	21 ms	15692 KB	Output is correct
27	Correct	17 ms	15728 KB	Output is correct
28	Correct	20 ms	15656 KB	Output is correct
29	Correct	20 ms	15668 KB	Output is correct
30	Correct	19 ms	15692 KB	Output is correct
31	Correct	18 ms	16052 KB	Output is correct

Subtask #4
43.0 / 43.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	14412 KB	Output is correct
2	Correct	9 ms	14428 KB	Output is correct
3	Correct	8 ms	14412 KB	Output is correct
4	Correct	8 ms	14396 KB	Output is correct
5	Correct	8 ms	14412 KB	Output is correct
6	Correct	9 ms	14412 KB	Output is correct
7	Correct	8 ms	14412 KB	Output is correct
8	Correct	8 ms	14412 KB	Output is correct
9	Correct	8 ms	14412 KB	Output is correct
10	Correct	9 ms	14412 KB	Output is correct
11	Correct	8 ms	14412 KB	Output is correct
12	Correct	8 ms	14424 KB	Output is correct
13	Correct	9 ms	14412 KB	Output is correct
14	Correct	9 ms	14344 KB	Output is correct
15	Correct	9 ms	14336 KB	Output is correct
16	Correct	9 ms	14412 KB	Output is correct
17	Correct	9 ms	14412 KB	Output is correct
18	Correct	9 ms	14412 KB	Output is correct
19	Correct	9 ms	14412 KB	Output is correct
20	Correct	9 ms	14540 KB	Output is correct
21	Correct	9 ms	14412 KB	Output is correct
22	Correct	9 ms	14452 KB	Output is correct
23	Correct	12 ms	15052 KB	Output is correct
24	Correct	13 ms	15052 KB	Output is correct
25	Correct	13 ms	15052 KB	Output is correct
26	Correct	21 ms	15692 KB	Output is correct
27	Correct	17 ms	15728 KB	Output is correct
28	Correct	20 ms	15656 KB	Output is correct
29	Correct	20 ms	15668 KB	Output is correct
30	Correct	19 ms	15692 KB	Output is correct
31	Correct	18 ms	16052 KB	Output is correct
32	Correct	65 ms	20820 KB	Output is correct
33	Correct	70 ms	20884 KB	Output is correct
34	Correct	63 ms	20812 KB	Output is correct
35	Correct	360 ms	40312 KB	Output is correct
36	Correct	360 ms	40392 KB	Output is correct
37	Correct	369 ms	40336 KB	Output is correct
38	Correct	448 ms	39524 KB	Output is correct
39	Correct	422 ms	39468 KB	Output is correct
40	Correct	433 ms	39452 KB	Output is correct
41	Correct	433 ms	44764 KB	Output is correct

Submission #389172

Compilation message

Subtask #1 13.0 / 13.0

Subtask #2 15.0 / 15.0

Subtask #3 29.0 / 29.0

Subtask #4 43.0 / 43.0

Subtask #1
13.0 / 13.0

Subtask #2
15.0 / 15.0

Subtask #3
29.0 / 29.0

Subtask #4
43.0 / 43.0