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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#785054#6660. 택시 여행ktq_cpp0 314ms52948kbC++144.4kb2024-11-26 16:44:042024-11-26 16:44:04

Judging History

你现在查看的是最新测评结果

  • [2024-11-26 16:44:04]
  • 评测
  • 测评结果:0
  • 用时:314ms
  • 内存:52948kb
  • [2024-11-26 16:44:04]
  • 提交

answer

#include<bits/stdc++.h>
#define ll long long
using namespace std;
int n;
const int N=1e5+5;
const ll inf=5e18;
struct Car{
	ll x;
	int y,id;
}a[N];
vector<pair<int,int>> G[N];
bool vis[N];
int sz[N],mx[N],all,rt;
int dep[N];
ll dis[N];
int dfn[N],mi[20][N],rnk[N],dfncnt;
int Fa[N];
int get(int x,int y){
	return dfn[x]<dfn[y]? x:y;
}
void init(int u,int fa){
	dep[u]=dep[fa]+1;
	mi[0][dfn[u]=++dfncnt]=fa;
	for(auto ed:G[u]){
		int v=ed.first,w=ed.second;
		if(v==fa)continue;
		dis[v]=dis[u]+w;
		init(v,u);
	}
	return;
}
void calc(int u,int fa){
	sz[u]=1,mx[u]=0;
	for(auto ed:G[u]){
		int v=ed.first;
		if(v==fa||vis[v])continue;
		calc(v,u);
		mx[u]=max(mx[u],sz[v]);
		sz[u]+=sz[v];
	}
	mx[u]=max(mx[u],all-sz[u]);
	if(!rt||mx[rt]>mx[u])rt=u;
	return;
}
void dfs(int u,int fa){
	Fa[u]=fa;
	vis[u]=1;
//	cout<<u<<' '<<fa<<endl;
	for(auto ed:G[u]){
		int v=ed.first;
		if(v==fa||vis[v])continue;
		rt=0;
		all=sz[v];
		calc(v,u);
		calc(rt,u);
		dfs(rt,u);
	}
	return;
}
ll dp[N];
struct Point{
	ll x,y;
	ll operator[](ll k){
		return y-x*k;
	}
};
struct LINE{
	vector<Point> stk;
	bool check(Point x,Point y,Point z){
		return 1.*(y.y-x.y)*(z.x-y.x)>1.*(z.y-y.y)*(y.x-x.x);
	}
	bool check(Point x,Point y,ll k){
		return 1.*(y.y-x.y)>1.*k*(y.x-x.x);
	}
	void add(Point x){
		//cout<<x.x<<' '<<x.y<<endl;
		int top=(int)stk.size();
		while(top>=1&&stk[top-1].y>x.y)--top;
		while(top>=2&&check(stk[top-2],stk[top-1],x)){
			--top;stk.pop_back();
		}
		stk.push_back(x);
		return;
	}
	ll query(ll k){
		if(stk.empty())return inf;
		int l=0,r=(int)stk.size()-2,res=(int)stk.size()-1;
		while(l<=r){
			int mid=l+r>>1;
			if(check(stk[mid],stk[mid+1],k))r=mid-1,res=mid;
			else l=mid+1;
		}
//		cout<<k<<' '<<res<<' '<<' '<<stk[res].x<<' '<<stk[res].y<<' '<<stk[res][k]<<' '<<check(stk[1],stk[2],k)<<'\n';
		return stk[res][k];
	}
}L[N];
int lca(int u,int v){
	if(u==v)return u;
	u=dfn[u],v=dfn[v];
	if(u>v)swap(u,v);
	int len=__lg(v-u++);
	return get(mi[len][u],mi[len][v-(1<<len)+1]);
}
ll get_dis(int x,int y){
	return dis[x]+dis[y]-dis[lca(x,y)]*2;
}
namespace PointmasTree{
	ll solve(int u){
		ll mn=inf;
		int x=u;
		while(x){
			mn=min(mn,L[x].query(get_dis(u,x)));
			x=Fa[x];
		}
		return mn;
	}
	void add(int u,ll X,ll Y){
		int x=u;
		while(x){
			L[x].add({-Y,dp[u]+X+Y*get_dis(u,x)});
			x=Fa[x];
		}
		return;
	}
}
vector<long long> travel(vector<long long> A, vector<int> B, vector<int> U,vector<int> V, vector<int> W){
	n=(int)A.size();
	for(int i=1;i<=n;i++){
		a[i].x=A[i-1],a[i].y=B[i-1],a[i].id=i;
	}
	sort(a+1,a+n+1,[&](Car a,Car b){
		return a.y>b.y;
	});
	for(int i=0;i<n-1;i++){
		G[U[i]+1].push_back({V[i]+1,W[i]});
		G[V[i]+1].push_back({U[i]+1,W[i]});
	}
	all=n,rt=0;
	init(1,0);
	calc(1,0);
	dfs(1,0);
	for(int j=1;(1<<j)<=n;j++){
		for(int i=1;i+(1<<j)-1<=n;i++){
			mi[j][i]=get(mi[j-1][i],mi[j-1][i+(1<<j-1)]);
		}
	}
	for(int i=2;i<=n;i++)dp[i]=inf;
	bool flag=0;
	for(int i=1;i<=n;i++){
		if(a[i].id!=1)dp[a[i].id]=PointmasTree::solve(a[i].id);
		else flag=1;
		if(flag)PointmasTree::add(a[i].id,a[i].x,a[i].y);
	}
//	cout<<'\n';
//	for(int i=1;i<=n;i++){
//		cout<<dp[i]<<' ';
//	}
//	cout<<'\n';
	vector<ll> ans;
	ans.resize(n-1,0);
	for(int i=2;i<=n;i++){
		ans[i-2]=PointmasTree::solve(i);
	}
	return ans;
}
#ifndef ONLINE_JUDGE
signed main(){
	int NN;
	scanf("%d",&NN);
	vector<ll> A;
	vector<int> B,U,V,W;
	for(int i=1;i<=NN;i++){
		ll x;
		scanf("%lld",&x);
		A.push_back(x);
	}
	for(int i=1;i<=NN;i++){
		int x;
		scanf("%d",&x);
		B.push_back(x);
	}
	for(int i=1,u,v,w;i<NN;i++){
		scanf("%d %d %d",&u,&v,&w);
		U.push_back(u);
		V.push_back(v);
		W.push_back(w);
	}
	vector<ll> ans=travel(A,B,U,V,W);
	for(int i=0;i<NN-1;i++)printf("%lld\n",ans[i]);
	return 0;
}
/*
input:
5
10 5 13 4 3
10 7 5 9 1
1 0 1
0 2 5
3 2 10
2 4 3

output:
20
60
104
88
*/
/*
input:
10
422984347234 607725142104 92118155366 486587956717 857158857503 799145939144 657596100723 796939845406 986487843217 23702497547
410761 491391 858697 690385 801672 657901 640039 950942 514882 665242
0 1 736069
1 2 871348
2 3 300958
3 4 249899
4 5 977539
5 6 867002
6 7 648549
7 8 891403
8 9 132040

output:
725332785743
1083248561571
1206870370609
1309519133748
1711054030927
2067184639449
2333583275238
2699736862921
2753973745361
*/
#endif

详细

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 7
Accepted
time: 0ms
memory: 11156kb

input:

2
684124582850 713748627948
74361 256955
0 1 661088

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
733283747618
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

ok 3 lines

Test #2:

score: 7
Accepted
time: 2ms
memory: 16196kb

input:

3
251115773325 363097865287 358609487841
826785 213106 914768
0 1 851938
2 0 231697

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
955485332655
442679377470
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

ok 4 lines

Test #3:

score: 7
Accepted
time: 2ms
memory: 12600kb

input:

3
489998888627 318672977903 70353752652
258347 458793 258657
2 1 156120
0 2 524840

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
665922861747
625589728107
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

ok 4 lines

Test #4:

score: 7
Accepted
time: 0ms
memory: 17708kb

input:

3
737471938521 315388610250 818943569900
726908 666797 564862
0 1 460302
0 2 785280

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
1072069144737
1308298252761
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

ok 4 lines

Test #5:

score: 7
Accepted
time: 2ms
memory: 16200kb

input:

4
201836820267 208957719162 992553400562 566050337171
243994 65303 590123 936951
1 0 259719
0 3 860376
3 2 513584

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
265206697953
537074816507
411763402011
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

ok 5 lines

Test #6:

score: 7
Accepted
time: 2ms
memory: 10668kb

input:

4
440719935569 160237864481 704297665373 767778991240
451998 371509 46564 828427
1 0 861960
1 3 830699
2 3 185693

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
830324131649
1289731282865
1205798418251
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

ok 5 lines

Test #7:

score: 7
Accepted
time: 2ms
memory: 17580kb

input:

5
148262899914 9382086008 622202345986 443806901161 213829280326
178155 503016 333953 572340 461148
0 3 453941
3 2 84057
4 0 171136
3 1 598794

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
335812903839
244109933604
229134758769
178751633994
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

ok 6 lines

Test #8:

score: 7
Accepted
time: 1ms
memory: 10608kb

input:

5
391440982512 969252165920 333946610796 649830522527 902812044171
522045 996458 225429 545971 667483
0 1 701500
0 4 514779
2 1 435377
3 0 919439

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
757655550012
984941935977
871429515267
660178785567
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

ok 6 lines

Test #9:

score: 0
Wrong Answer
time: 2ms
memory: 13144kb

input:

17
315015458526 65513576283 829720084774 654640079244 561177336848 463903843105 496216524512 837433489064 92734412345 807145138979 250511786518 915329126804 373916658654 78276842047 121976569238 432447179015 519384539551
696133 642473 231377 987220 589587 337763 790202 785083 249580 108311 73808 892...

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
430639669161
417840567823
403532946274
499079112962
498466070651
634227941809
499402357184
501387707132
498265325456
501233852966
474661031682
536446316097
411867746683
497598865088
499819422548
496976423075
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

wrong answer 7th lines differ - expected: '495984520010', found: '634227941809'

Subtask #2:

score: 0
Wrong Answer

Test #31:

score: 0
Wrong Answer
time: 314ms
memory: 52948kb

input:

100000
746699125678 374834842799 250803643493 620187038832 454433387570 406226564003 897157438699 99473514061 734784419618 503968957100 363935477037 277126009840 52078020050 990757079812 847235285349 950784717285 271017141367 861087225700 996035427219 520682200664 282013988419 415183977876 882007771...

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
1711742783771215
1711664979118146
1711586252374544
1711542065430431
1711464935642514
1711486828393264
1507131807027107
1507097362507349
1507066346869619
1507026942912587
1506995222498510
1711909127156891
1711980105555538
1711985010273135
1712003139283138
171206...

result:

wrong answer 2nd lines differ - expected: '1148030742334', found: '1711742783771215'

Subtask #3:

score: 0
Skipped

Dependency #1:

0%

Subtask #4:

score: 0
Wrong Answer

Test #69:

score: 0
Wrong Answer
time: 83ms
memory: 33116kb

input:

100000
15175010 23519365 21177669 27079342 9089 16784452 29693960 23124925 17048604 10179491 12828214 24992902 8483134 2928073 23807522 7332137 17421520 28460746 1607282 13224363 11900728 11794692 11495061 4687109 23460275 7657982 27417256 16978162 7326803 23083826 24942987 16610314 12147303 2828271...

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
136007351
114778985
129520499
105828345
126075564
78912496
108785192
101041129
130431208
84661753
100919134
110041971
98493653
133606796
114702111
93774116
119735247
109263822
107503374
129549636
136716332
109231880
98505400
124365021
129308331
130548218
919843...

result:

wrong answer 2nd lines differ - expected: '16705757', found: '136007351'

Subtask #5:

score: 0
Wrong Answer

Test #94:

score: 0
Wrong Answer
time: 108ms
memory: 38620kb

input:

99281
551670361798 568902251563 418071776626 697635341894 641578820039 117221079324 812766431051 425410617978 663769685693 282144284527 799662290178 749088952784 586626406385 122473825417 459510657357 871705247919 443707710712 735612808044 237919555727 829939639783 122127143240 616906466299 24431898...

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
3821074714205
3322526891162
3724993430089
3830653200381
3330179130152
3830653200381
3830653200381
3556860899439
3830653200381
3815625581135
3830653200381
3830653200381
3275154093656
3830653200381
3830653200381
3763495918313
3358474354133
2745812372957
383065320...

result:

wrong answer 2nd lines differ - expected: '598598746654', found: '3821074714205'

Subtask #6:

score: 0
Skipped

Dependency #1:

0%