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QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#783771 | #6660. 택시 여행 | beiwen | 0 | 171ms | 38892kb | C++20 | 2.5kb | 2024-11-26 11:44:02 | 2024-11-26 11:44:02 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int N=1e5+5;
#define int long long
using ll=long long;
const ll inf=1e18;
ll n, a[N], b[N];
ll sz[N], vis[N], rt, S, mn, ft[N], fw[N];
vector<pair<ll, ll> > e[N];
void findrt(ll u, ll f) {
sz[u]=1;
ll res=0;
for(auto t:e[u]) {
int v=t.first;
if(v==f||vis[v]) continue ;
findrt(v, u);
sz[u]+=sz[v];
res=max(res, sz[v]);
}
res=max(res, S-sz[u]);
if(res<mn) mn=res, rt=u;
}
ll dis[N];
void pdfs(int u, int fa) {
for(auto t:e[u]) {
ll v=t.first, w=t.second;
if(v==fa||vis[v]) continue ;
dis[v]=dis[u]+w;
pdfs(v, u);
}
}
void dfs(int u) {
vis[u]=1;
sz[u]=S+1;
dis[u]=0; pdfs(u, 0);
for(auto t:e[u]) {
ll v=t.first, w=t.second;
if(!vis[v]) {
S=sz[v]; rt=0; mn=inf;
findrt(v, 0);
ft[rt]=u; fw[rt]=dis[rt];
dfs(rt);
}
}
}
struct Node{
ll x, y;
};
long double K(Node A, Node B) {
return 1.0L*(A.y-B.y)/(A.x-B.x);
}
struct TB{
vector<Node> A;
void Ins(Node p) {
if(!A.empty()&&A.back().x==p.x) {
p.y=min(p.y, A.back().y);
A.pop_back();
}
while(A.size()>1&&K(A[A.size()-1], A[A.size()-2])<=K(A[A.size()-1], p)) A.pop_back();
A.push_back(p);
}
ll qry(ll k) {
if(A.empty()) return inf;
k=-k;
ll L=1, R=A.size()-1, now=0;
while(L<=R) {
ll mid=L+R>>1;
if(K(A[mid], A[mid-1])>k) now=mid, L=mid+1;
else R=mid-1;
}
return A[now].y-k*A[now].x;
}
} tb[N];
ll f[N];
ll get(int u) {
if(u==1) return 0; ll res=inf;
for(ll i=u, d=0; i; d+=fw[i], i=ft[i]) {
res=min(res, tb[i].qry(d));
}
return res;
}
void change(int u) {
f[u]=get(u);
// cout<<f[u]<<"\n";
for(ll i=u, d=0; i; d+=fw[i], i=ft[i]) {
tb[i].Ins(Node{b[u], f[u]+a[u]+b[u]*d});
}
}
int p[N];
#undef int
vector<long long> travel(vector<long long> A, vector<int> B, vector<int> U,
vector<int> V, vector<int> W) {
n=A.size();
for(int i=1; i<=n; i++)
a[i]=A[i-1], b[i]=B[i-1];
for(int i=1; i<n; i++) {
ll u=U[i-1]+1, v=V[i-1]+1, w=W[i-1];
e[u].push_back({v, w});
e[v].push_back({u, w});
}
S=n; mn=inf; rt=0;
findrt(1, 0);
dfs(rt);
for(int i=1; i<=n; i++) p[i]=i;
sort(p+1, p+1+n, [&](ll x, ll y){
return b[x]>b[y];
});
for(int i=1; i<=n; i++) {
change(p[i]);
}
vector<ll> res(n-1);
for(int i=2; i<=n; i++) res[i-2]=get(i);
return res;
}
/*
int main() {
vector<ll> res=travel({10, 5, 13, 4, 3}, {10, 7, 5, 9, 1}, {1, 0, 3, 2}, {0, 2, 2, 4}, {1, 5, 10, 3});
for(ll v:res) cout<<v<<" ";
}
*/
/*
5
10 5 13 4 3
10 7 5 9 1
1 0 1
0 2 5
3 2 10
2 4 3
*/
詳細信息
Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 7
Accepted
time: 0ms
memory: 9896kb
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: 9960kb
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: 1ms
memory: 9944kb
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: 9964kb
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: 1ms
memory: 8184kb
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: 1ms
memory: 9940kb
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: 7904kb
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: 0
Wrong Answer
time: 1ms
memory: 9936kb
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 1212228321942 984941935977 871429515267 660178785567 secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
result:
wrong answer 2nd lines differ - expected: '757655550012', found: '1212228321942'
Subtask #2:
score: 0
Wrong Answer
Test #31:
score: 0
Wrong Answer
time: 171ms
memory: 38892kb
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 2408842387198 2893332914530 3258156482902 3195016753906 3350951812118 3300820841298 3364509959586 3415780069404 3704618570120 3649333978678 3653154229820 3631393165078 3582710613376 3701286814736 3698486289666 371555887...
result:
wrong answer 5th lines differ - expected: '2353514637869', found: '2408842387198'
Subtask #3:
score: 0
Skipped
Dependency #1:
0%
Subtask #4:
score: 0
Wrong Answer
Test #69:
score: 0
Wrong Answer
time: 64ms
memory: 29168kb
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 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 16705757 ...
result:
wrong answer 1841st lines differ - expected: '16477221', found: '16487141'
Subtask #5:
score: 0
Wrong Answer
Test #94:
score: 0
Wrong Answer
time: 64ms
memory: 28908kb
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 598598746654 598598746654 598598746654 598598746654 598598746654 598598746654 598598746654 598598746654 598598746654 598598746654 598598746654 598598746654 598598746654 598598746654 598598746654 598598746654 598598746654 598598746654 598598746654 598598746654 5...
result:
wrong answer 48315th lines differ - expected: '570853708214', found: '598598746654'
Subtask #6:
score: 0
Skipped
Dependency #1:
0%