#include "walk.h"
#include<bits/stdc++.h>
using namespace std;
#define sz(x) (int)x.size()
#define REP(i,n) for(int i=0;i<n;i++)
#define REP1(i,n) for(int i=1;i<=n;i++)
#define pb push_back
#define lowb(x) (x&(-x))
#define ALL(_x) _x.begin(),_x.end()
#define pii pair<ll,int>
#define f first
#define s second
#define SORT_UNIQUE(x) sort(ALL(x)),x.erase(unique(ALL(x)),x.end())
#define ll long long
const ll INF64=4e18;
const int maxn=2e6+5;
vector<pii> gr[maxn];
void add(int a,int b,int w){
gr[a].pb({b,w}),gr[b].pb({a,w});
}
vector<pii> pts[maxn];
ll dist[maxn];
long long min_distance(std::vector<int> xx, std::vector<int> h, std::vector<int> l, std::vector<int> r, std::vector<int> y, int s, int g) {
int n=sz(xx),m=sz(l);
vector<pii> v;
REP(i,n){
v.pb({h[i],i});
}
sort(ALL(v)),reverse(ALL(v));;
for(int zz:{s,g}){
vector<pii> vv;
REP(i,m){
vv.pb({y[i],i});
}
set<int> ss;
sort(ALL(vv));
reverse(ALL(vv));
int p=0;
for(auto x:vv){
if(r[x.s]<=zz or l[x.s]>=zz) continue;
while(p<n and v[p].f>=x.f){
ss.insert(v[p].s);
++p;
}
int a=(*prev(ss.upper_bound(zz))),b=(*ss.lower_bound(zz));
l.pb(l[x.s]),r.pb(a),y.pb(x.f);
l.pb(a),r.pb(b),y.pb(x.f);
l.pb(b),r.pb(r[x.s]),y.pb(x.f);
}
m=sz(l);
}
vector<pii> vv;
REP(i,m){
vv.pb({y[i],i});
}
sort(ALL(vv));
reverse(ALL(vv));
int cur=0;
set<int> ss;
int p=0;
for(auto x:vv){
while(p<n and v[p].f>=x.f){
ss.insert(v[p].s);
++p;
}
int a=l[x.s],b=r[x.s];
ss.insert(a),ss.insert(b);
auto it=ss.lower_bound(a);
int pp=-1;
vector<int> del;
while(it!=ss.end() and (*it)<=b){
int z=(*it);
if(sz(pts[z])){
auto pv=pts[z].back();
add(pv.s,cur,pv.f-x.f);
}
pts[z].pb({x.f,cur});
if(pp!=-1) add(cur-1,cur,xx[z]-xx[pp]);
pp=z;
++cur;
if(z!=a and z!=b){
del.pb(z);
}
++it;
}
for(int x:del) ss.erase(x);
}
for(int z:{s,g}){
if(!sz(pts[z])){
return -1;
}
auto pv=pts[z].back();
add(pv.s,cur++,pv.f);
}
REP(i,cur) dist[i]=INF64;
priority_queue<pii,vector<pii>,greater<pii>> pq;
pq.push({0,cur-2});
dist[cur-2]=0;
while(sz(pq)){
int z=pq.top().s;
if(pq.top().f>dist[z]){
pq.pop();
continue;
}
pq.pop();
for(auto x:gr[z]){
if(dist[x.f]>dist[z]+x.s){
dist[x.f]=dist[z]+x.s;
pq.push({dist[x.f],x.f});
}
}
}
if(dist[cur-1]==INF64) dist[cur-1]=-1;
return dist[cur-1];
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
44 ms |
94168 KB |
Output is correct |
2 |
Correct |
43 ms |
94132 KB |
Output is correct |
3 |
Correct |
43 ms |
94156 KB |
Output is correct |
4 |
Correct |
46 ms |
94196 KB |
Output is correct |
5 |
Correct |
44 ms |
94256 KB |
Output is correct |
6 |
Correct |
45 ms |
94176 KB |
Output is correct |
7 |
Correct |
44 ms |
94220 KB |
Output is correct |
8 |
Correct |
45 ms |
94156 KB |
Output is correct |
9 |
Correct |
50 ms |
94212 KB |
Output is correct |
10 |
Correct |
44 ms |
94224 KB |
Output is correct |
11 |
Correct |
45 ms |
94168 KB |
Output is correct |
12 |
Correct |
46 ms |
94152 KB |
Output is correct |
13 |
Correct |
44 ms |
94236 KB |
Output is correct |
14 |
Correct |
44 ms |
94156 KB |
Output is correct |
15 |
Correct |
45 ms |
94176 KB |
Output is correct |
16 |
Correct |
46 ms |
94156 KB |
Output is correct |
17 |
Correct |
44 ms |
94224 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
43 ms |
94164 KB |
Output is correct |
2 |
Correct |
44 ms |
94152 KB |
Output is correct |
3 |
Correct |
371 ms |
135616 KB |
Output is correct |
4 |
Correct |
619 ms |
144852 KB |
Output is correct |
5 |
Correct |
397 ms |
139376 KB |
Output is correct |
6 |
Correct |
458 ms |
149260 KB |
Output is correct |
7 |
Correct |
397 ms |
139816 KB |
Output is correct |
8 |
Correct |
378 ms |
139464 KB |
Output is correct |
9 |
Correct |
466 ms |
143996 KB |
Output is correct |
10 |
Correct |
616 ms |
150736 KB |
Output is correct |
11 |
Correct |
396 ms |
134076 KB |
Output is correct |
12 |
Correct |
356 ms |
126332 KB |
Output is correct |
13 |
Correct |
579 ms |
151412 KB |
Output is correct |
14 |
Correct |
584 ms |
185572 KB |
Output is correct |
15 |
Correct |
457 ms |
147716 KB |
Output is correct |
16 |
Correct |
305 ms |
128364 KB |
Output is correct |
17 |
Correct |
295 ms |
126076 KB |
Output is correct |
18 |
Correct |
168 ms |
127788 KB |
Output is correct |
19 |
Correct |
64 ms |
97868 KB |
Output is correct |
20 |
Correct |
234 ms |
131604 KB |
Output is correct |
21 |
Correct |
300 ms |
125172 KB |
Output is correct |
22 |
Correct |
303 ms |
125476 KB |
Output is correct |
23 |
Correct |
250 ms |
129628 KB |
Output is correct |
24 |
Correct |
277 ms |
125780 KB |
Output is correct |
25 |
Correct |
290 ms |
125608 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
141 ms |
108764 KB |
Output is correct |
2 |
Correct |
307 ms |
140412 KB |
Output is correct |
3 |
Correct |
377 ms |
144116 KB |
Output is correct |
4 |
Correct |
599 ms |
159452 KB |
Output is correct |
5 |
Correct |
592 ms |
160756 KB |
Output is correct |
6 |
Correct |
561 ms |
158072 KB |
Output is correct |
7 |
Correct |
377 ms |
134164 KB |
Output is correct |
8 |
Correct |
333 ms |
122452 KB |
Output is correct |
9 |
Correct |
546 ms |
156700 KB |
Output is correct |
10 |
Correct |
310 ms |
138612 KB |
Output is correct |
11 |
Correct |
69 ms |
98200 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
141 ms |
108764 KB |
Output is correct |
2 |
Correct |
307 ms |
140412 KB |
Output is correct |
3 |
Correct |
377 ms |
144116 KB |
Output is correct |
4 |
Correct |
599 ms |
159452 KB |
Output is correct |
5 |
Correct |
592 ms |
160756 KB |
Output is correct |
6 |
Correct |
561 ms |
158072 KB |
Output is correct |
7 |
Correct |
377 ms |
134164 KB |
Output is correct |
8 |
Correct |
333 ms |
122452 KB |
Output is correct |
9 |
Correct |
546 ms |
156700 KB |
Output is correct |
10 |
Correct |
310 ms |
138612 KB |
Output is correct |
11 |
Correct |
69 ms |
98200 KB |
Output is correct |
12 |
Correct |
384 ms |
143952 KB |
Output is correct |
13 |
Correct |
422 ms |
153484 KB |
Output is correct |
14 |
Correct |
592 ms |
160460 KB |
Output is correct |
15 |
Correct |
500 ms |
143824 KB |
Output is correct |
16 |
Correct |
569 ms |
151960 KB |
Output is correct |
17 |
Correct |
617 ms |
161616 KB |
Output is correct |
18 |
Correct |
490 ms |
144000 KB |
Output is correct |
19 |
Correct |
423 ms |
147408 KB |
Output is correct |
20 |
Correct |
361 ms |
133824 KB |
Output is correct |
21 |
Correct |
127 ms |
106524 KB |
Output is correct |
22 |
Correct |
367 ms |
144484 KB |
Output is correct |
23 |
Correct |
371 ms |
142140 KB |
Output is correct |
24 |
Correct |
338 ms |
129328 KB |
Output is correct |
25 |
Correct |
420 ms |
139200 KB |
Output is correct |
26 |
Correct |
251 ms |
119548 KB |
Output is correct |
27 |
Correct |
615 ms |
160652 KB |
Output is correct |
28 |
Correct |
467 ms |
152616 KB |
Output is correct |
29 |
Correct |
555 ms |
157824 KB |
Output is correct |
30 |
Correct |
381 ms |
134380 KB |
Output is correct |
31 |
Correct |
522 ms |
155856 KB |
Output is correct |
32 |
Correct |
297 ms |
130752 KB |
Output is correct |
33 |
Correct |
308 ms |
130040 KB |
Output is correct |
34 |
Correct |
274 ms |
132236 KB |
Output is correct |
35 |
Correct |
319 ms |
132676 KB |
Output is correct |
36 |
Correct |
350 ms |
127340 KB |
Output is correct |
37 |
Correct |
297 ms |
122484 KB |
Output is correct |
38 |
Correct |
307 ms |
122452 KB |
Output is correct |
39 |
Correct |
256 ms |
126748 KB |
Output is correct |
40 |
Correct |
267 ms |
122872 KB |
Output is correct |
41 |
Correct |
303 ms |
123048 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
44 ms |
94168 KB |
Output is correct |
2 |
Correct |
43 ms |
94132 KB |
Output is correct |
3 |
Correct |
43 ms |
94156 KB |
Output is correct |
4 |
Correct |
46 ms |
94196 KB |
Output is correct |
5 |
Correct |
44 ms |
94256 KB |
Output is correct |
6 |
Correct |
45 ms |
94176 KB |
Output is correct |
7 |
Correct |
44 ms |
94220 KB |
Output is correct |
8 |
Correct |
45 ms |
94156 KB |
Output is correct |
9 |
Correct |
50 ms |
94212 KB |
Output is correct |
10 |
Correct |
44 ms |
94224 KB |
Output is correct |
11 |
Correct |
45 ms |
94168 KB |
Output is correct |
12 |
Correct |
46 ms |
94152 KB |
Output is correct |
13 |
Correct |
44 ms |
94236 KB |
Output is correct |
14 |
Correct |
44 ms |
94156 KB |
Output is correct |
15 |
Correct |
45 ms |
94176 KB |
Output is correct |
16 |
Correct |
46 ms |
94156 KB |
Output is correct |
17 |
Correct |
44 ms |
94224 KB |
Output is correct |
18 |
Correct |
43 ms |
94164 KB |
Output is correct |
19 |
Correct |
44 ms |
94152 KB |
Output is correct |
20 |
Correct |
371 ms |
135616 KB |
Output is correct |
21 |
Correct |
619 ms |
144852 KB |
Output is correct |
22 |
Correct |
397 ms |
139376 KB |
Output is correct |
23 |
Correct |
458 ms |
149260 KB |
Output is correct |
24 |
Correct |
397 ms |
139816 KB |
Output is correct |
25 |
Correct |
378 ms |
139464 KB |
Output is correct |
26 |
Correct |
466 ms |
143996 KB |
Output is correct |
27 |
Correct |
616 ms |
150736 KB |
Output is correct |
28 |
Correct |
396 ms |
134076 KB |
Output is correct |
29 |
Correct |
356 ms |
126332 KB |
Output is correct |
30 |
Correct |
579 ms |
151412 KB |
Output is correct |
31 |
Correct |
584 ms |
185572 KB |
Output is correct |
32 |
Correct |
457 ms |
147716 KB |
Output is correct |
33 |
Correct |
305 ms |
128364 KB |
Output is correct |
34 |
Correct |
295 ms |
126076 KB |
Output is correct |
35 |
Correct |
168 ms |
127788 KB |
Output is correct |
36 |
Correct |
64 ms |
97868 KB |
Output is correct |
37 |
Correct |
234 ms |
131604 KB |
Output is correct |
38 |
Correct |
300 ms |
125172 KB |
Output is correct |
39 |
Correct |
303 ms |
125476 KB |
Output is correct |
40 |
Correct |
250 ms |
129628 KB |
Output is correct |
41 |
Correct |
277 ms |
125780 KB |
Output is correct |
42 |
Correct |
290 ms |
125608 KB |
Output is correct |
43 |
Correct |
141 ms |
108764 KB |
Output is correct |
44 |
Correct |
307 ms |
140412 KB |
Output is correct |
45 |
Correct |
377 ms |
144116 KB |
Output is correct |
46 |
Correct |
599 ms |
159452 KB |
Output is correct |
47 |
Correct |
592 ms |
160756 KB |
Output is correct |
48 |
Correct |
561 ms |
158072 KB |
Output is correct |
49 |
Correct |
377 ms |
134164 KB |
Output is correct |
50 |
Correct |
333 ms |
122452 KB |
Output is correct |
51 |
Correct |
546 ms |
156700 KB |
Output is correct |
52 |
Correct |
310 ms |
138612 KB |
Output is correct |
53 |
Correct |
69 ms |
98200 KB |
Output is correct |
54 |
Correct |
384 ms |
143952 KB |
Output is correct |
55 |
Correct |
422 ms |
153484 KB |
Output is correct |
56 |
Correct |
592 ms |
160460 KB |
Output is correct |
57 |
Correct |
500 ms |
143824 KB |
Output is correct |
58 |
Correct |
569 ms |
151960 KB |
Output is correct |
59 |
Correct |
617 ms |
161616 KB |
Output is correct |
60 |
Correct |
490 ms |
144000 KB |
Output is correct |
61 |
Correct |
423 ms |
147408 KB |
Output is correct |
62 |
Correct |
361 ms |
133824 KB |
Output is correct |
63 |
Correct |
127 ms |
106524 KB |
Output is correct |
64 |
Correct |
367 ms |
144484 KB |
Output is correct |
65 |
Correct |
371 ms |
142140 KB |
Output is correct |
66 |
Correct |
338 ms |
129328 KB |
Output is correct |
67 |
Correct |
420 ms |
139200 KB |
Output is correct |
68 |
Correct |
251 ms |
119548 KB |
Output is correct |
69 |
Correct |
615 ms |
160652 KB |
Output is correct |
70 |
Correct |
467 ms |
152616 KB |
Output is correct |
71 |
Correct |
555 ms |
157824 KB |
Output is correct |
72 |
Correct |
381 ms |
134380 KB |
Output is correct |
73 |
Correct |
522 ms |
155856 KB |
Output is correct |
74 |
Correct |
297 ms |
130752 KB |
Output is correct |
75 |
Correct |
308 ms |
130040 KB |
Output is correct |
76 |
Correct |
274 ms |
132236 KB |
Output is correct |
77 |
Correct |
319 ms |
132676 KB |
Output is correct |
78 |
Correct |
350 ms |
127340 KB |
Output is correct |
79 |
Correct |
297 ms |
122484 KB |
Output is correct |
80 |
Correct |
307 ms |
122452 KB |
Output is correct |
81 |
Correct |
256 ms |
126748 KB |
Output is correct |
82 |
Correct |
267 ms |
122872 KB |
Output is correct |
83 |
Correct |
303 ms |
123048 KB |
Output is correct |
84 |
Correct |
117 ms |
106028 KB |
Output is correct |
85 |
Correct |
456 ms |
153376 KB |
Output is correct |
86 |
Correct |
961 ms |
219232 KB |
Output is correct |
87 |
Correct |
179 ms |
112092 KB |
Output is correct |
88 |
Correct |
213 ms |
113680 KB |
Output is correct |
89 |
Correct |
187 ms |
112020 KB |
Output is correct |
90 |
Correct |
76 ms |
98984 KB |
Output is correct |
91 |
Correct |
47 ms |
94412 KB |
Output is correct |
92 |
Correct |
68 ms |
97764 KB |
Output is correct |
93 |
Correct |
365 ms |
130040 KB |
Output is correct |
94 |
Correct |
196 ms |
109616 KB |
Output is correct |
95 |
Correct |
426 ms |
150736 KB |
Output is correct |
96 |
Correct |
420 ms |
148740 KB |
Output is correct |
97 |
Correct |
482 ms |
160272 KB |
Output is correct |
98 |
Correct |
408 ms |
143016 KB |
Output is correct |
99 |
Correct |
1455 ms |
321140 KB |
Output is correct |
100 |
Correct |
649 ms |
163584 KB |
Output is correct |
101 |
Correct |
962 ms |
218808 KB |
Output is correct |
102 |
Correct |
448 ms |
138960 KB |
Output is correct |
103 |
Correct |
309 ms |
133596 KB |
Output is correct |
104 |
Correct |
295 ms |
133220 KB |
Output is correct |
105 |
Correct |
269 ms |
135364 KB |
Output is correct |
106 |
Correct |
370 ms |
144476 KB |
Output is correct |
107 |
Correct |
300 ms |
138368 KB |
Output is correct |
108 |
Correct |
79 ms |
100252 KB |
Output is correct |
109 |
Correct |
552 ms |
154212 KB |
Output is correct |
110 |
Correct |
457 ms |
157672 KB |
Output is correct |
111 |
Correct |
437 ms |
157384 KB |
Output is correct |
112 |
Correct |
345 ms |
137940 KB |
Output is correct |
113 |
Correct |
360 ms |
133440 KB |
Output is correct |