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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#121653#6660. 택시 여행youngsystem0 902ms68436kbC++203.6kb2023-07-08 16:32:032023-07-08 16:32:07

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-07-08 16:32:07]
  • 评测
  • 测评结果:0
  • 用时:902ms
  • 内存:68436kb
  • [2023-07-08 16:32:03]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
long long a[200005],b[200005];
vector<int>v[200005];
vector<long long>bq[200005];
int df[200005];
int fa[200005][19],dep[200005];
long long het[200005];
void dfs(int x,int f)
{
	dep[x]=dep[f]+1;
	fa[x][0]=f;
	for(int i=1;i<=18;i++)fa[x][i]=fa[fa[x][i-1]][i-1];
	for(int i=0;i<v[x].size();i++)
	{
		if(v[x][i]==f)continue;
		het[v[x][i]]=het[x]+bq[x][i];
		dfs(v[x][i],x); 
	}
}
int lca(int x,int y)
{
	if(dep[x]<dep[y])swap(x,y);
	for(int i=18;i>=0;i--)
	{
		if(dep[fa[x][i]]>=dep[y])x=fa[x][i];
	}
	if(x==y)return x;
	for(int i=18;i>=0;i--)
	{
		if(fa[x][i]!=fa[y][i])
		{
			x=fa[x][i];
			y=fa[y][i];
		}
	}
	return fa[x][0];
}
int finddis(int x,int y)
{
	return het[x]+het[y]-2*het[lca(x,y)];
}
int sum,nrt;
int siz[200005],sy[200005],rf[100005];
bool vis[200005];
void findrt(int x,int f)
{
	rf[x]=f;
	siz[x]=1;
	sy[x]=0;
	for(int i=0;i<v[x].size();i++)
	{
		if(v[x][i]==f||vis[v[x][i]])continue;
		findrt(v[x][i],x);
		siz[x]+=siz[v[x][i]];
		sy[x]=max(sy[x],siz[v[x][i]]);
	}
	sy[x]=max(sy[x],sum-siz[x]);
	if(sy[x]<sy[nrt])nrt=x;
}
int rt[200005];
int ch[4000005][2];
long long nk[4000005],nb[4000005];
int cnt;
bool vist[4000005];
void insert(int& k,long long l,long long r,long long tk,long long tb)
{
	if(k==0)k=++cnt;
	if(vist[k]==false)
	{
		vist[k]=true;
		nk[k]=tk;
		nb[k]=tb;
		return;
	}
	long long mid=((l+r)>>1);
	long long pz=nk[k]*mid+nb[k],xz=tk*mid+tb;
	if(xz<pz)
	{
		swap(nk[k],tk);
		swap(nb[k],tb);
		swap(xz,pz);
	}
	if(l==r)return;
	if(tk<nk[k])insert(ch[k][1],mid+1,r,tk,tb);
	else insert(ch[k][0],l,mid,tk,tb);
}
long long query(int k,long long l,long long r,long long x)
{
	if(k==0||!vist[k])return 1000000000000000000LL;
	long long ans=nk[k]*x+nb[k];
	if(l==r)return ans;
	long long mid=((l+r)>>1);
	if(x<=mid)ans=min(ans,query(ch[k][0],l,mid,x));
	else ans=min(ans,query(ch[k][1],mid+1,r,x));
	return ans;
}
void solve(int x)
{
	if(rf[x]!=0&&vis[rf[x]]==false)siz[rf[x]]=sum-siz[x];
	vis[x]=true;
	for(int i=0;i<v[x].size();i++)
	{
		if(vis[v[x][i]])continue;
		sum=siz[v[x][i]];
		nrt=0;
		findrt(v[x][i],0);
		df[nrt]=x;
		solve(nrt);
	}
}
int pos[200005];
long long dis[200005];
bool bi(int x,int y)
{
	return b[x]>b[y];
}
std::vector<long long> travel(std::vector<long long> A,
        std::vector<int> B, std::vector<int> U, std::vector<int> V, std::vector<int> W)
{
    int n = A.size();
    for(int i=1;i<=n;i++)
    {
    	a[i]=A[i-1];
    	b[i]=B[i-1];
    	pos[i]=i;
	}
	sort(pos+1,pos+n+1,bi);
    for(int i=0;i<n-1;i++)
    {
    	U[i]++;
    	V[i]++;
    	v[U[i]].push_back(V[i]);
    	v[V[i]].push_back(U[i]);
    	bq[U[i]].push_back(W[i]);
    	bq[V[i]].push_back(W[i]);
	}
	dfs(1,0);
	printf("orz\n");
	nrt=0;
	sum=n;
	sy[0]=1000000000;
	findrt(1,0);
	df[nrt]=0;
	solve(nrt);
	for(int i=1;i<=n;i++)printf("%d ",df[i]);
	printf("\n");
	dis[1]=0;
	for(int i=2;i<=n;i++)dis[i]=1000000000000000000LL;
	for(int ii=1;ii<=n;ii++)
	{
		int i=pos[ii];
		int now=i;
		while(now!=0)
		{
			dis[i]=min(dis[i],query(rt[now],1,1000000000000LL,finddis(i,now)));
			now=df[now];
		}
		if(dis[i]==1000000000000000000LL)continue;
		now=i;
		while(now!=0)
		{
			insert(rt[now],1,1000000000000LL,b[i],dis[i]+a[i]+b[i]*finddis(i,now));
			now=df[now];
		}
	}
	for(int i=1;i<=n;i++)
	{
		int now=i;
		while(now!=0)
		{
			dis[i]=min(dis[i],query(rt[now],1,1000000000000LL,finddis(i,now)));
			now=df[now];
		}
	}
	vector<long long>qans;
	for(int i=2;i<=n;i++)qans.push_back(dis[i]); 
    return qans;
}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 0
Wrong Answer
time: 6ms
memory: 24144kb

input:

2
684124582850 713748627948
74361 256955
0 1 661088

output:

Unauthorized output

result:

wrong answer 1st lines differ - expected: 'secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I', found: 'Unauthorized output'

Subtask #2:

score: 0
Wrong Answer

Test #31:

score: 0
Wrong Answer
time: 902ms
memory: 68436kb

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:

Unauthorized output

result:

wrong answer 1st lines differ - expected: 'secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I', found: 'Unauthorized output'

Subtask #3:

score: 0
Skipped

Dependency #1:

0%

Subtask #4:

score: 0
Wrong Answer

Test #69:

score: 0
Wrong Answer
time: 181ms
memory: 49900kb

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:

Unauthorized output

result:

wrong answer 1st lines differ - expected: 'secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I', found: 'Unauthorized output'

Subtask #5:

score: 0
Wrong Answer

Test #94:

score: 0
Wrong Answer
time: 275ms
memory: 49436kb

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:

Unauthorized output

result:

wrong answer 1st lines differ - expected: 'secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I', found: 'Unauthorized output'

Subtask #6:

score: 0
Skipped

Dependency #1:

0%