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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#120803#6660. 택시 여행zhouhuanyi#0 683ms372460kbC++116.3kb2023-07-07 11:24:052024-07-04 00:25:00

Judging History

你现在查看的是最新测评结果

  • [2024-07-04 00:25:00]
  • 评测
  • 测评结果:0
  • 用时:683ms
  • 内存:372460kb
  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-07-07 11:24:05]
  • 提交

answer

#include<iostream>
#include<cstdio>
#include<vector>
#include<queue>
#include<set>
#include<algorithm>
#define N 1000000
#define inf 2e18
#define INF 1e9
using namespace std;
struct node
{
    int num,data,snum;
};
struct reads
{
    int num;
    long long data;
    bool operator < (const reads &t)const
    {
	return data>t.data;
    }
};
struct points
{
    int x;
    long long y;
    bool operator < (const points &t)const
    {
	return x!=t.x?x<t.x:y<t.y;
    }
};
int n,cater,length,rt,sx,sy,smz,szt,nums,ds,fa[N+1],b[N+1],sz[N+1],maxp[N+1],ls[N+1],rs[N+1],ps[N+1],ps2[N+1],minn;
long long a[N+1],dis[N+1],depth[N+1];
bool used[N+1],vis[N+1],vst[N+1];
vector<node>E[N+1];
vector<node>ES[N+1];
vector<reads>A[N+1];
vector<reads>B[N+1];
vector<long long>depths[N+1];
set<points>s1[N+1];
set<points>s2[N+1];
priority_queue<reads>q;
void add(int x,int y,int z,int w)
{
    E[x].push_back((node){y,z,w}),E[y].push_back((node){x,z,w});
    return;
}
void add2(int x,int y,int z)
{
    ++cater,ES[x].push_back((node){y,z,cater}),ES[y].push_back((node){x,z,cater});
    return;
}
void dfs(int x)
{
    int nw=0;
    vis[x]=1;
    for (int i=0;i<E[x].size();++i)
	if (!vis[E[x][i].num])
	{
	    dfs(E[x][i].num),++length,add2(length,E[x][i].num,E[x][i].data);
	    if (nw) add2(length,nw,0);
	    nw=length;
	}
    if (nw) add2(x,nw,0);
    vis[x]=0;
    return;
}
void get_rt(int x)
{
    vis[x]=sz[x]=1;
    for (int i=0;i<ES[x].size();++i)
	if (!used[ES[x][i].snum]&&!vis[ES[x][i].num])
	{
	    get_rt(ES[x][i].num),sz[x]+=sz[ES[x][i].num];
	    if (max(sz[ES[x][i].num],smz-sz[ES[x][i].num])<minn) minn=max(sz[ES[x][i].num],smz-sz[ES[x][i].num]),sx=x,sy=ES[x][i].num,nums=ES[x][i].snum,ds=ES[x][i].data,szt=sz[ES[x][i].num];
        }
    vis[x]=0;
    return;
}
void dfs2(int x)
{
    if (x<=n) depths[x].push_back(depth[x]),A[length].push_back((reads){x,depth[x]});
    vis[x]=1;
    for (int i=0;i<ES[x].size();++i)
	if (!used[ES[x][i].snum]&&!vis[ES[x][i].num])
	    depth[ES[x][i].num]=depth[x]+ES[x][i].data,dfs2(ES[x][i].num);
    vis[x]=0;
    return;
}
void dfs3(int x)
{
    if (x<=n) depths[x].push_back(depth[x]),B[length].push_back((reads){x,depth[x]});
    vis[x]=1;
    for (int i=0;i<ES[x].size();++i)
	if (!used[ES[x][i].snum]&&!vis[ES[x][i].num])
	    depth[ES[x][i].num]=depth[x]+ES[x][i].data,dfs3(ES[x][i].num);
    vis[x]=0;
    return;
}
bool cmp(reads a,reads b)
{
    return a.data<b.data;
}
int solve(int x,int y)
{
    int d1=smz-szt,d2=szt,nw=++length;
    used[nums]=1,depth[x]=ds,depth[y]=0,dfs2(x),dfs3(y),sort(A[nw].begin(),A[nw].end(),cmp),sort(B[nw].begin(),B[nw].end(),cmp);
    smz=d1,minn=INF;
    if (smz!=1) get_rt(x),ls[nw]=solve(sx,sy);
    else ls[nw]=x;
    smz=d2,minn=INF;
    if (smz!=1) get_rt(y),rs[nw]=solve(sx,sy);
    else rs[nw]=y;
    fa[ls[nw]]=fa[rs[nw]]=nw;
    return nw;
}
bool check(points a,points b,points c)
{
    return 1ll*(b.y-a.y)*(c.x-a.x)>=1ll*(c.y-a.y)*(b.x-a.x);
}
void get(int x,int k,long long b)
{
    while (s1[x].size()>=2)
    {
	auto it=s1[x].lower_bound((points){k,b});
	if (it!=s1[x].end())
	{
	    auto it2=it;
	    it2++;
	    if (it2!=s1[x].end())
	    {
		if (check((points){k,b},*it,*it2)) s1[x].erase(it);
		else break;
	    }
	    else break;
	}
	else break;
    }
    while (s1[x].size()>=2)
    {
	auto it=s1[x].lower_bound((points){k,b});
	if (it!=s1[x].begin())
	{
	    it--;
	    if (it!=s1[x].begin())
	    {
		auto it2=it;
		it2--;
		if (check(*it2,*it,(points){k,b})) s1[x].erase(it);
		else break;
	    }
	    else break;
	}
	else break;
    }
    s1[x].insert((points){k,b});
    return;
}
void get2(int x,int k,long long b)
{
    while (s2[x].size()>=2)
    {
	auto it=s2[x].lower_bound((points){k,b});
	if (it!=s2[x].end())
	{
	    auto it2=it;
	    it2++;
	    if (it2!=s2[x].end())
	    {
		if (check((points){k,b},*it,*it2)) s2[x].erase(it);
		else break;
	    }
	    else break;
	}
	else break;
    }
    while (s2[x].size()>=2)
    {
	auto it=s2[x].lower_bound((points){k,b});
	if (it!=s2[x].begin())
	{
	    it--;
	    if (it!=s2[x].begin())
	    {
		auto it2=it;
		it2--;
		if (check(*it2,*it,(points){k,b})) s2[x].erase(it);
		else break;
	    }
	    else break;
	}
	else break;
    }
    s2[x].insert((points){k,b});
    return;
}
long long query(int x,long long d)
{
    if (s1[x].empty()) return inf;
    while (s1[x].size()>=2)
    {
	auto it=s1[x].end();
	it--;
	auto it2=it;
	it2--;
	if (check(*it2,*it,(points){1,-d})) s1[x].erase(it);
	else break;
    }
    auto it=s1[x].end();
    it--;
    return 1ll*(*it).x*d+(*it).y;
}
long long query2(int x,long long d)
{
    if (s2[x].empty()) return inf;
    while (s2[x].size()>=2)
    {
	auto it=s2[x].end();
	it--;
	auto it2=it;
	it2--;
	if (check(*it2,*it,(points){1,-d})) s2[x].erase(it);
	else break;
    }
    auto it=s2[x].end();
    it--;
    return 1ll*(*it).x*d+(*it).y;
}
void adder(int x)
{
    int y=x,cl;
    long long d;
    for (int i=(int)(depths[x].size())-1;i>=0;--i)
    {
	cl=(rs[fa[y]]==y),y=fa[y];
	if (!cl) get2(y,b[x],dis[x]+a[x]+1ll*b[x]*depths[x][i]);
	else get(y,b[x],dis[x]+a[x]+1ll*b[x]*depths[x][i]);
	while (ps[y]<A[y].size()&&vst[A[y][ps[y]].num]) ps[y]++;
	if (ps[y]<A[y].size())
	{
	    d=query(y,A[y][ps[y]].data);
	    if (d<dis[A[y][ps[y]].num]) dis[A[y][ps[y]].num]=d,q.push((reads){A[y][ps[y]].num,d});
	}
	while (ps2[y]<B[y].size()&&vst[B[y][ps2[y]].num]) ps2[y]++;
	if (ps2[y]<B[y].size())
	{
	    d=query2(y,B[y][ps2[y]].data);
	    if (d<dis[B[y][ps2[y]].num]) dis[B[y][ps2[y]].num]=d,q.push((reads){B[y][ps2[y]].num,d});
	}
    }
    return;
}
void dijkstra()
{
    int top;
    for (int i=1;i<=n;++i) dis[i]=inf;
    dis[1]=0,q.push((reads){1,0});
    while (!q.empty())
    {
	top=q.top().num,q.pop();
	if (vst[top]) continue;
	vst[top]=1,adder(top);
    }
    return;
}
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)
{
    length=n=A.size();
    vector<long long>qry(n-1);
    for (int i=1;i<=n;++i) a[i]=A[i-1],b[i]=B[i-1];
    for (int i=1;i<=n-1;++i) add(U[i-1]+1,V[i-1]+1,W[i-1],i);
    dfs(1);
    smz=length,minn=INF,get_rt(1),rt=solve(sx,sy),dijkstra();
    for (int i=2;i<=n;++i) qry[i-2]=dis[i];
    return qry;
}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 7
Accepted
time: 23ms
memory: 235700kb

input:

2
684124582850 713748627948
74361 256955
0 1 661088

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
733283747618
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 20ms
memory: 232956kb

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: 0
Accepted
time: 30ms
memory: 236032kb

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: 0
Accepted
time: 24ms
memory: 235720kb

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
Wrong Answer
time: 32ms
memory: 232392kb

input:

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

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
265206697953
580848556852
411763402011
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

wrong answer 3rd lines differ - expected: '537074816507', found: '580848556852'

Subtask #2:

score: 0
Wrong Answer

Test #31:

score: 0
Wrong Answer
time: 609ms
memory: 372460kb

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
1148030742334
1636760433058
2131282232650
2353514637869
2672707119337
2763307672337
2948215735597
3003888852169
3054019822989
3117708941277
3168979051095
3214001638323
3508164324190
3510527883553
3519264164590
3549383676793
3565437158413
3567169821268
357773249...

result:

wrong answer 14th lines differ - expected: '3269286229765', found: '3508164324190'

Subtask #3:

score: 0
Skipped

Dependency #1:

0%

Subtask #4:

score: 0
Wrong Answer

Test #69:

score: 0
Wrong Answer
time: 683ms
memory: 370360kb

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
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
20561293
...

result:

wrong answer 2nd lines differ - expected: '16705757', found: '20561293'

Subtask #5:

score: 0
Wrong Answer

Test #94:

score: 0
Wrong Answer
time: 681ms
memory: 356440kb

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
599096118410
599096118410
599096118410
599096118410
599096118410
599096118410
599096118410
599096118410
599096118410
599096118410
599096118410
599096118410
599096118410
599096118410
599096118410
599096118410
599096118410
599096118410
599096118410
599096118410
5...

result:

wrong answer 2nd lines differ - expected: '598598746654', found: '599096118410'

Subtask #6:

score: 0
Skipped

Dependency #1:

0%