#include "railroad.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
map<int,int> m;
const int maxn = 4e5 + 10;
vector<int> grafo[maxn];
struct DSU{
int pai[maxn];
void init(int n){ for(int i=0; i<maxn; i++) pai[i] = i; }
int find(int x){ return pai[x] == x ? x : pai[x] = find(pai[x]); }
bool join(int a, int b){
a = find(a), b = find(b);
if(a == b) return 0;
pai[b] = a; return 1;
}
}dsu;
long long plan_roller_coaster(vector<int> s, vector<int> t) {
int n = (int)s.size() + 1;
s.push_back(1e9);
t.push_back(1);
vector<int> v;
for(int x : s) v.push_back(x);
for(int x : t) v.push_back(x);
sort(v.begin(), v.end());
v.erase(unique(v.begin(), v.end()), v.end());
int tt = 0;
for(int x : v) m[x] = tt++;
vector<int> sum(tt+1, 0);
dsu.init(tt);
for(int i=0; i<n; i++){
int u = m[s[i]], v = m[t[i]];
if(u == v) continue;
dsu.join(u, v);
++sum[u], --sum[v];
}
ll ans = 0;
for(int i=0; i<tt; i++){
if(i) sum[i] += sum[i-1];
if(sum[i] != 0){
dsu.join(i, i+1);
ans += 1LL * max(sum[i], 0) * (v[i+1] - v[i]);
}
}
vector<pii> q;
for(int i=0; i+1<tt; i++) if(dsu.find(i) != dsu.find(i+1)) q.push_back({v[i+1] - v[i], i});
sort(q.begin(), q.end());
for(auto [w, i] : q) if(dsu.join(i, i+1)) ans += w;
return ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
11212 KB |
n = 2 |
2 |
Correct |
8 ms |
11212 KB |
n = 2 |
3 |
Correct |
8 ms |
11212 KB |
n = 2 |
4 |
Correct |
7 ms |
11212 KB |
n = 2 |
5 |
Correct |
6 ms |
11212 KB |
n = 2 |
6 |
Correct |
7 ms |
11256 KB |
n = 2 |
7 |
Correct |
7 ms |
11212 KB |
n = 3 |
8 |
Correct |
7 ms |
11212 KB |
n = 3 |
9 |
Correct |
7 ms |
11212 KB |
n = 3 |
10 |
Correct |
7 ms |
11172 KB |
n = 8 |
11 |
Correct |
7 ms |
11212 KB |
n = 8 |
12 |
Correct |
7 ms |
11228 KB |
n = 8 |
13 |
Correct |
6 ms |
11212 KB |
n = 8 |
14 |
Correct |
7 ms |
11236 KB |
n = 8 |
15 |
Correct |
6 ms |
11212 KB |
n = 8 |
16 |
Correct |
7 ms |
11212 KB |
n = 8 |
17 |
Correct |
8 ms |
11212 KB |
n = 8 |
18 |
Correct |
7 ms |
11212 KB |
n = 8 |
19 |
Correct |
7 ms |
11212 KB |
n = 3 |
20 |
Correct |
8 ms |
11212 KB |
n = 7 |
21 |
Correct |
7 ms |
11232 KB |
n = 8 |
22 |
Correct |
8 ms |
11212 KB |
n = 8 |
23 |
Correct |
7 ms |
11340 KB |
n = 8 |
24 |
Correct |
6 ms |
11148 KB |
n = 8 |
25 |
Correct |
7 ms |
11212 KB |
n = 8 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
11212 KB |
n = 2 |
2 |
Correct |
8 ms |
11212 KB |
n = 2 |
3 |
Correct |
8 ms |
11212 KB |
n = 2 |
4 |
Correct |
7 ms |
11212 KB |
n = 2 |
5 |
Correct |
6 ms |
11212 KB |
n = 2 |
6 |
Correct |
7 ms |
11256 KB |
n = 2 |
7 |
Correct |
7 ms |
11212 KB |
n = 3 |
8 |
Correct |
7 ms |
11212 KB |
n = 3 |
9 |
Correct |
7 ms |
11212 KB |
n = 3 |
10 |
Correct |
7 ms |
11172 KB |
n = 8 |
11 |
Correct |
7 ms |
11212 KB |
n = 8 |
12 |
Correct |
7 ms |
11228 KB |
n = 8 |
13 |
Correct |
6 ms |
11212 KB |
n = 8 |
14 |
Correct |
7 ms |
11236 KB |
n = 8 |
15 |
Correct |
6 ms |
11212 KB |
n = 8 |
16 |
Correct |
7 ms |
11212 KB |
n = 8 |
17 |
Correct |
8 ms |
11212 KB |
n = 8 |
18 |
Correct |
7 ms |
11212 KB |
n = 8 |
19 |
Correct |
7 ms |
11212 KB |
n = 3 |
20 |
Correct |
8 ms |
11212 KB |
n = 7 |
21 |
Correct |
7 ms |
11232 KB |
n = 8 |
22 |
Correct |
8 ms |
11212 KB |
n = 8 |
23 |
Correct |
7 ms |
11340 KB |
n = 8 |
24 |
Correct |
6 ms |
11148 KB |
n = 8 |
25 |
Correct |
7 ms |
11212 KB |
n = 8 |
26 |
Correct |
7 ms |
11232 KB |
n = 8 |
27 |
Correct |
7 ms |
11212 KB |
n = 8 |
28 |
Correct |
7 ms |
11212 KB |
n = 8 |
29 |
Correct |
8 ms |
11212 KB |
n = 16 |
30 |
Correct |
9 ms |
11232 KB |
n = 16 |
31 |
Correct |
7 ms |
11212 KB |
n = 16 |
32 |
Correct |
7 ms |
11236 KB |
n = 16 |
33 |
Correct |
7 ms |
11232 KB |
n = 16 |
34 |
Correct |
8 ms |
11236 KB |
n = 16 |
35 |
Correct |
8 ms |
11212 KB |
n = 16 |
36 |
Correct |
7 ms |
11212 KB |
n = 15 |
37 |
Correct |
7 ms |
11212 KB |
n = 8 |
38 |
Correct |
7 ms |
11212 KB |
n = 16 |
39 |
Correct |
7 ms |
11236 KB |
n = 16 |
40 |
Correct |
7 ms |
11212 KB |
n = 9 |
41 |
Correct |
7 ms |
11212 KB |
n = 16 |
42 |
Correct |
8 ms |
11212 KB |
n = 16 |
43 |
Correct |
8 ms |
11260 KB |
n = 16 |
44 |
Correct |
7 ms |
11212 KB |
n = 9 |
45 |
Correct |
7 ms |
11212 KB |
n = 15 |
46 |
Correct |
9 ms |
11212 KB |
n = 16 |
47 |
Correct |
7 ms |
11212 KB |
n = 16 |
48 |
Correct |
8 ms |
11212 KB |
n = 16 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
520 ms |
36304 KB |
n = 199999 |
2 |
Correct |
516 ms |
36308 KB |
n = 199991 |
3 |
Correct |
499 ms |
36312 KB |
n = 199993 |
4 |
Correct |
338 ms |
30360 KB |
n = 152076 |
5 |
Correct |
198 ms |
22880 KB |
n = 93249 |
6 |
Correct |
432 ms |
32604 KB |
n = 199910 |
7 |
Correct |
443 ms |
35856 KB |
n = 199999 |
8 |
Correct |
406 ms |
32736 KB |
n = 199997 |
9 |
Correct |
440 ms |
32720 KB |
n = 171294 |
10 |
Correct |
311 ms |
28904 KB |
n = 140872 |
11 |
Correct |
423 ms |
32992 KB |
n = 199886 |
12 |
Correct |
418 ms |
35992 KB |
n = 199996 |
13 |
Correct |
432 ms |
33612 KB |
n = 200000 |
14 |
Correct |
404 ms |
37172 KB |
n = 199998 |
15 |
Correct |
416 ms |
36876 KB |
n = 200000 |
16 |
Correct |
437 ms |
37604 KB |
n = 199998 |
17 |
Correct |
505 ms |
36308 KB |
n = 200000 |
18 |
Correct |
487 ms |
35056 KB |
n = 190000 |
19 |
Correct |
416 ms |
33520 KB |
n = 177777 |
20 |
Correct |
197 ms |
23832 KB |
n = 100000 |
21 |
Correct |
461 ms |
36316 KB |
n = 200000 |
22 |
Correct |
493 ms |
39456 KB |
n = 200000 |
23 |
Correct |
491 ms |
36316 KB |
n = 200000 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
11212 KB |
n = 2 |
2 |
Correct |
8 ms |
11212 KB |
n = 2 |
3 |
Correct |
8 ms |
11212 KB |
n = 2 |
4 |
Correct |
7 ms |
11212 KB |
n = 2 |
5 |
Correct |
6 ms |
11212 KB |
n = 2 |
6 |
Correct |
7 ms |
11256 KB |
n = 2 |
7 |
Correct |
7 ms |
11212 KB |
n = 3 |
8 |
Correct |
7 ms |
11212 KB |
n = 3 |
9 |
Correct |
7 ms |
11212 KB |
n = 3 |
10 |
Correct |
7 ms |
11172 KB |
n = 8 |
11 |
Correct |
7 ms |
11212 KB |
n = 8 |
12 |
Correct |
7 ms |
11228 KB |
n = 8 |
13 |
Correct |
6 ms |
11212 KB |
n = 8 |
14 |
Correct |
7 ms |
11236 KB |
n = 8 |
15 |
Correct |
6 ms |
11212 KB |
n = 8 |
16 |
Correct |
7 ms |
11212 KB |
n = 8 |
17 |
Correct |
8 ms |
11212 KB |
n = 8 |
18 |
Correct |
7 ms |
11212 KB |
n = 8 |
19 |
Correct |
7 ms |
11212 KB |
n = 3 |
20 |
Correct |
8 ms |
11212 KB |
n = 7 |
21 |
Correct |
7 ms |
11232 KB |
n = 8 |
22 |
Correct |
8 ms |
11212 KB |
n = 8 |
23 |
Correct |
7 ms |
11340 KB |
n = 8 |
24 |
Correct |
6 ms |
11148 KB |
n = 8 |
25 |
Correct |
7 ms |
11212 KB |
n = 8 |
26 |
Correct |
7 ms |
11232 KB |
n = 8 |
27 |
Correct |
7 ms |
11212 KB |
n = 8 |
28 |
Correct |
7 ms |
11212 KB |
n = 8 |
29 |
Correct |
8 ms |
11212 KB |
n = 16 |
30 |
Correct |
9 ms |
11232 KB |
n = 16 |
31 |
Correct |
7 ms |
11212 KB |
n = 16 |
32 |
Correct |
7 ms |
11236 KB |
n = 16 |
33 |
Correct |
7 ms |
11232 KB |
n = 16 |
34 |
Correct |
8 ms |
11236 KB |
n = 16 |
35 |
Correct |
8 ms |
11212 KB |
n = 16 |
36 |
Correct |
7 ms |
11212 KB |
n = 15 |
37 |
Correct |
7 ms |
11212 KB |
n = 8 |
38 |
Correct |
7 ms |
11212 KB |
n = 16 |
39 |
Correct |
7 ms |
11236 KB |
n = 16 |
40 |
Correct |
7 ms |
11212 KB |
n = 9 |
41 |
Correct |
7 ms |
11212 KB |
n = 16 |
42 |
Correct |
8 ms |
11212 KB |
n = 16 |
43 |
Correct |
8 ms |
11260 KB |
n = 16 |
44 |
Correct |
7 ms |
11212 KB |
n = 9 |
45 |
Correct |
7 ms |
11212 KB |
n = 15 |
46 |
Correct |
9 ms |
11212 KB |
n = 16 |
47 |
Correct |
7 ms |
11212 KB |
n = 16 |
48 |
Correct |
8 ms |
11212 KB |
n = 16 |
49 |
Correct |
520 ms |
36304 KB |
n = 199999 |
50 |
Correct |
516 ms |
36308 KB |
n = 199991 |
51 |
Correct |
499 ms |
36312 KB |
n = 199993 |
52 |
Correct |
338 ms |
30360 KB |
n = 152076 |
53 |
Correct |
198 ms |
22880 KB |
n = 93249 |
54 |
Correct |
432 ms |
32604 KB |
n = 199910 |
55 |
Correct |
443 ms |
35856 KB |
n = 199999 |
56 |
Correct |
406 ms |
32736 KB |
n = 199997 |
57 |
Correct |
440 ms |
32720 KB |
n = 171294 |
58 |
Correct |
311 ms |
28904 KB |
n = 140872 |
59 |
Correct |
423 ms |
32992 KB |
n = 199886 |
60 |
Correct |
418 ms |
35992 KB |
n = 199996 |
61 |
Correct |
432 ms |
33612 KB |
n = 200000 |
62 |
Correct |
404 ms |
37172 KB |
n = 199998 |
63 |
Correct |
416 ms |
36876 KB |
n = 200000 |
64 |
Correct |
437 ms |
37604 KB |
n = 199998 |
65 |
Correct |
505 ms |
36308 KB |
n = 200000 |
66 |
Correct |
487 ms |
35056 KB |
n = 190000 |
67 |
Correct |
416 ms |
33520 KB |
n = 177777 |
68 |
Correct |
197 ms |
23832 KB |
n = 100000 |
69 |
Correct |
461 ms |
36316 KB |
n = 200000 |
70 |
Correct |
493 ms |
39456 KB |
n = 200000 |
71 |
Correct |
491 ms |
36316 KB |
n = 200000 |
72 |
Correct |
488 ms |
40296 KB |
n = 200000 |
73 |
Correct |
497 ms |
40280 KB |
n = 200000 |
74 |
Correct |
484 ms |
40224 KB |
n = 200000 |
75 |
Correct |
482 ms |
40224 KB |
n = 200000 |
76 |
Correct |
523 ms |
40164 KB |
n = 200000 |
77 |
Correct |
251 ms |
30116 KB |
n = 200000 |
78 |
Correct |
301 ms |
33100 KB |
n = 200000 |
79 |
Correct |
445 ms |
37832 KB |
n = 184307 |
80 |
Correct |
135 ms |
22260 KB |
n = 76040 |
81 |
Correct |
413 ms |
35668 KB |
n = 199981 |
82 |
Correct |
447 ms |
39208 KB |
n = 199994 |
83 |
Correct |
407 ms |
36372 KB |
n = 199996 |
84 |
Correct |
397 ms |
40352 KB |
n = 199998 |
85 |
Correct |
385 ms |
39840 KB |
n = 200000 |
86 |
Correct |
417 ms |
40900 KB |
n = 199998 |
87 |
Correct |
479 ms |
40164 KB |
n = 200000 |
88 |
Correct |
491 ms |
40224 KB |
n = 200000 |
89 |
Correct |
520 ms |
40096 KB |
n = 200000 |
90 |
Correct |
488 ms |
40224 KB |
n = 200000 |
91 |
Correct |
528 ms |
43168 KB |
n = 200000 |
92 |
Correct |
515 ms |
40184 KB |
n = 200000 |