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#784973#6660. 택시 여행ktq_cpp0 176ms41696kbC++144.4kb2024-11-26 16:28:242024-11-26 16:28:25

Judging History

你现在查看的是最新测评结果

  • [2024-11-26 16:28:25]
  • 评测
  • 测评结果:0
  • 用时:176ms
  • 内存:41696kb
  • [2024-11-26 16:28:24]
  • 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 (y.y-x.y)*(z.x-y.x)>(z.y-y.y)*(y.x-x.x);
	}
	bool check(Point x,Point y,ll k){
		return (y.y-x.y)>k*(y.x-x.x);
	}
	void add(Point x){
		//cout<<x.x<<' '<<x.y<<endl;
		int top=(int)stk.size();
		while((int)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<=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++){
		if(dp[i]==inf)ans[i-2]=PointmasTree::solve(i);
		else ans[i-2]=dp[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: 2ms
memory: 11184kb

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: 0ms
memory: 13248kb

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: 0ms
memory: 13668kb

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: 2ms
memory: 10664kb

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: 0ms
memory: 13080kb

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: 0ms
memory: 16240kb

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: 0ms
memory: 17740kb

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: 2ms
memory: 16240kb

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: 17656kb

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
854701616505
811025535952
495984520010
499402357184
1019176960415
796723483467
1008215650197
474661031682
536446316097
411867746683
749241643803
907444829383
704895883304
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

wrong answer 5th lines differ - expected: '499079112962', found: '854701616505'

Subtask #2:

score: 0
Wrong Answer

Test #31:

score: 0
Wrong Answer
time: 176ms
memory: 41696kb

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
26545402251306
17445426755181
17415013448531
17805764090470
22384680939249
17359689505031
17328373514081
17300760807431
17275896889681
17428254137870
17365770539270
17196549240256
17243524780270
17238868986870
21376616671642
22251286365374
21009393718124
171272...

result:

wrong answer 2nd lines differ - expected: '1148030742334', found: '26545402251306'

Subtask #3:

score: 0
Skipped

Dependency #1:

0%

Subtask #4:

score: 0
Wrong Answer

Test #69:

score: 0
Wrong Answer
time: 73ms
memory: 33316kb

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
95925210
121219253
95925210
110070491
95925210
64824740
95925210
95925210
95925210
79298855
126034938
81243558
95925210
137893908
114702111
72897034
95925210
95925210
114236626
95925210
95925210
142610269
95925210
95925210
95925210
95925210
80766822
95925210
95...

result:

wrong answer 2nd lines differ - expected: '16705757', found: '95925210'

Subtask #5:

score: 0
Wrong Answer

Test #94:

score: 0
Wrong Answer
time: 86ms
memory: 38284kb

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
1107668560991
1382844403309
1469142279430
999242218521
1312789136690
1561564411185
1341344545913
1107668560991
1276478037153
1336451664441
1723259384809
1177879651795
1368748945139
1399014416032
1399014416032
1431061284211
1426511074558
1403502472362
1768233219...

result:

wrong answer 2nd lines differ - expected: '598598746654', found: '1107668560991'

Subtask #6:

score: 0
Skipped

Dependency #1:

0%