#include "railroad.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int mx = 4e5 + 5;
ll dp[16][1<<16];
vector<int> X;
vector<int> O[mx];
int deg[mx];
bool vis[mx];
void dfs(int x){
vis[x] = 1;
for(int &u : O[x]){
if(!vis[u]) dfs(u);
}
}
ll plan_roller_coaster(vector<int> s, vector<int> t) {
int n = (int) s.size();
if(n > 16)
{
for(int i = 0; i < n; i++){
X.push_back(s[i]);
X.push_back(t[i]);
}
sort(X.begin(),X.end());
X.erase(unique(X.begin(),X.end()),X.end());
for(int i = 0; i < n; i++){
s[i] = lower_bound(X.begin(),X.end(),s[i]) - X.begin();
t[i] = lower_bound(X.begin(),X.end(),t[i]) - X.begin();
++deg[ s[i] ];
--deg[ t[i] ];
O[ s[i] ].push_back(t[i]);
}
for(int i = 0; i < X.size(); i++){
int cnt = (i == 0) - deg[i];
if(cnt > 0){
deg[i] += cnt;
deg[i+1] -= cnt;
O[i].push_back(i+1);
}else if(cnt < 0) return 42;
}
dfs(0);
for(int i = 0; i < X.size(); i++) if(!vis[i]) return 42;
return 0;
}
for(int i = 0; i < n; i++) fill(dp[i], dp[i] + (1 << n), LLONG_MAX);
for(int i = 0; i < n; i++) dp[i][1<<i] = 0;
for(int b = 1; b < (1 << n); b++){
for(int i = 0; i < n; i++){
if(!(b >> i & 1)) continue;
for(int j = 0; j < n; j++){
if(b >> j & 1) continue;
ll &d = dp[j][b | (1 << j)];
d = min(d, dp[i][b] + max(0, t[i]-s[j]));
}
}
}
ll ans = LLONG_MAX;
for(int i = 0; i < n; i++){
ans = min(ans, dp[i][(1<<n)-1]);
}
return ans;
}
Compilation message
railroad.cpp: In function 'll plan_roller_coaster(std::vector<int>, std::vector<int>)':
railroad.cpp:39:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 0; i < X.size(); i++){
~~^~~~~~~~~~
railroad.cpp:48:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 0; i < X.size(); i++) if(!vis[i]) return 42;
~~^~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
9 ms |
9720 KB |
n = 2 |
2 |
Correct |
9 ms |
9720 KB |
n = 2 |
3 |
Correct |
9 ms |
9884 KB |
n = 2 |
4 |
Correct |
9 ms |
9884 KB |
n = 2 |
5 |
Correct |
9 ms |
9884 KB |
n = 2 |
6 |
Correct |
9 ms |
9888 KB |
n = 2 |
7 |
Correct |
9 ms |
10016 KB |
n = 3 |
8 |
Correct |
9 ms |
10016 KB |
n = 3 |
9 |
Correct |
9 ms |
10092 KB |
n = 3 |
10 |
Correct |
10 ms |
10092 KB |
n = 8 |
11 |
Correct |
9 ms |
10092 KB |
n = 8 |
12 |
Correct |
9 ms |
10092 KB |
n = 8 |
13 |
Correct |
9 ms |
10092 KB |
n = 8 |
14 |
Correct |
9 ms |
10092 KB |
n = 8 |
15 |
Correct |
9 ms |
10092 KB |
n = 8 |
16 |
Correct |
11 ms |
10092 KB |
n = 8 |
17 |
Correct |
10 ms |
10092 KB |
n = 8 |
18 |
Correct |
9 ms |
10092 KB |
n = 8 |
19 |
Correct |
9 ms |
10092 KB |
n = 3 |
20 |
Correct |
9 ms |
10092 KB |
n = 7 |
21 |
Correct |
10 ms |
10092 KB |
n = 8 |
22 |
Correct |
9 ms |
10092 KB |
n = 8 |
23 |
Correct |
9 ms |
10092 KB |
n = 8 |
24 |
Correct |
9 ms |
10092 KB |
n = 8 |
25 |
Correct |
8 ms |
10092 KB |
n = 8 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
9 ms |
9720 KB |
n = 2 |
2 |
Correct |
9 ms |
9720 KB |
n = 2 |
3 |
Correct |
9 ms |
9884 KB |
n = 2 |
4 |
Correct |
9 ms |
9884 KB |
n = 2 |
5 |
Correct |
9 ms |
9884 KB |
n = 2 |
6 |
Correct |
9 ms |
9888 KB |
n = 2 |
7 |
Correct |
9 ms |
10016 KB |
n = 3 |
8 |
Correct |
9 ms |
10016 KB |
n = 3 |
9 |
Correct |
9 ms |
10092 KB |
n = 3 |
10 |
Correct |
10 ms |
10092 KB |
n = 8 |
11 |
Correct |
9 ms |
10092 KB |
n = 8 |
12 |
Correct |
9 ms |
10092 KB |
n = 8 |
13 |
Correct |
9 ms |
10092 KB |
n = 8 |
14 |
Correct |
9 ms |
10092 KB |
n = 8 |
15 |
Correct |
9 ms |
10092 KB |
n = 8 |
16 |
Correct |
11 ms |
10092 KB |
n = 8 |
17 |
Correct |
10 ms |
10092 KB |
n = 8 |
18 |
Correct |
9 ms |
10092 KB |
n = 8 |
19 |
Correct |
9 ms |
10092 KB |
n = 3 |
20 |
Correct |
9 ms |
10092 KB |
n = 7 |
21 |
Correct |
10 ms |
10092 KB |
n = 8 |
22 |
Correct |
9 ms |
10092 KB |
n = 8 |
23 |
Correct |
9 ms |
10092 KB |
n = 8 |
24 |
Correct |
9 ms |
10092 KB |
n = 8 |
25 |
Correct |
8 ms |
10092 KB |
n = 8 |
26 |
Correct |
9 ms |
10092 KB |
n = 8 |
27 |
Correct |
9 ms |
10092 KB |
n = 8 |
28 |
Correct |
8 ms |
10092 KB |
n = 8 |
29 |
Correct |
55 ms |
18228 KB |
n = 16 |
30 |
Correct |
52 ms |
18228 KB |
n = 16 |
31 |
Correct |
52 ms |
18228 KB |
n = 16 |
32 |
Correct |
52 ms |
18228 KB |
n = 16 |
33 |
Correct |
53 ms |
18228 KB |
n = 16 |
34 |
Correct |
53 ms |
18228 KB |
n = 16 |
35 |
Correct |
51 ms |
18228 KB |
n = 16 |
36 |
Correct |
29 ms |
18228 KB |
n = 15 |
37 |
Correct |
9 ms |
18228 KB |
n = 8 |
38 |
Correct |
54 ms |
18228 KB |
n = 16 |
39 |
Correct |
52 ms |
18228 KB |
n = 16 |
40 |
Correct |
9 ms |
18228 KB |
n = 9 |
41 |
Correct |
53 ms |
18228 KB |
n = 16 |
42 |
Correct |
54 ms |
18236 KB |
n = 16 |
43 |
Correct |
53 ms |
18236 KB |
n = 16 |
44 |
Correct |
9 ms |
18236 KB |
n = 9 |
45 |
Correct |
29 ms |
18236 KB |
n = 15 |
46 |
Correct |
52 ms |
18236 KB |
n = 16 |
47 |
Correct |
53 ms |
18236 KB |
n = 16 |
48 |
Correct |
54 ms |
18236 KB |
n = 16 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
345 ms |
41708 KB |
n = 199999 |
2 |
Correct |
261 ms |
41708 KB |
n = 199991 |
3 |
Correct |
253 ms |
41708 KB |
n = 199993 |
4 |
Correct |
270 ms |
41708 KB |
n = 152076 |
5 |
Correct |
155 ms |
41708 KB |
n = 93249 |
6 |
Correct |
305 ms |
44820 KB |
n = 199910 |
7 |
Correct |
335 ms |
52928 KB |
n = 199999 |
8 |
Correct |
309 ms |
52928 KB |
n = 199997 |
9 |
Correct |
320 ms |
55092 KB |
n = 171294 |
10 |
Correct |
251 ms |
55092 KB |
n = 140872 |
11 |
Correct |
345 ms |
59700 KB |
n = 199886 |
12 |
Correct |
321 ms |
67564 KB |
n = 199996 |
13 |
Correct |
315 ms |
68096 KB |
n = 200000 |
14 |
Correct |
241 ms |
68096 KB |
n = 199998 |
15 |
Correct |
237 ms |
68096 KB |
n = 200000 |
16 |
Correct |
243 ms |
68096 KB |
n = 199998 |
17 |
Correct |
263 ms |
71496 KB |
n = 200000 |
18 |
Correct |
248 ms |
74588 KB |
n = 190000 |
19 |
Correct |
281 ms |
94436 KB |
n = 177777 |
20 |
Correct |
169 ms |
94436 KB |
n = 100000 |
21 |
Correct |
364 ms |
96444 KB |
n = 200000 |
22 |
Correct |
280 ms |
96444 KB |
n = 200000 |
23 |
Correct |
385 ms |
111324 KB |
n = 200000 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
9 ms |
9720 KB |
n = 2 |
2 |
Correct |
9 ms |
9720 KB |
n = 2 |
3 |
Correct |
9 ms |
9884 KB |
n = 2 |
4 |
Correct |
9 ms |
9884 KB |
n = 2 |
5 |
Correct |
9 ms |
9884 KB |
n = 2 |
6 |
Correct |
9 ms |
9888 KB |
n = 2 |
7 |
Correct |
9 ms |
10016 KB |
n = 3 |
8 |
Correct |
9 ms |
10016 KB |
n = 3 |
9 |
Correct |
9 ms |
10092 KB |
n = 3 |
10 |
Correct |
10 ms |
10092 KB |
n = 8 |
11 |
Correct |
9 ms |
10092 KB |
n = 8 |
12 |
Correct |
9 ms |
10092 KB |
n = 8 |
13 |
Correct |
9 ms |
10092 KB |
n = 8 |
14 |
Correct |
9 ms |
10092 KB |
n = 8 |
15 |
Correct |
9 ms |
10092 KB |
n = 8 |
16 |
Correct |
11 ms |
10092 KB |
n = 8 |
17 |
Correct |
10 ms |
10092 KB |
n = 8 |
18 |
Correct |
9 ms |
10092 KB |
n = 8 |
19 |
Correct |
9 ms |
10092 KB |
n = 3 |
20 |
Correct |
9 ms |
10092 KB |
n = 7 |
21 |
Correct |
10 ms |
10092 KB |
n = 8 |
22 |
Correct |
9 ms |
10092 KB |
n = 8 |
23 |
Correct |
9 ms |
10092 KB |
n = 8 |
24 |
Correct |
9 ms |
10092 KB |
n = 8 |
25 |
Correct |
8 ms |
10092 KB |
n = 8 |
26 |
Correct |
9 ms |
10092 KB |
n = 8 |
27 |
Correct |
9 ms |
10092 KB |
n = 8 |
28 |
Correct |
8 ms |
10092 KB |
n = 8 |
29 |
Correct |
55 ms |
18228 KB |
n = 16 |
30 |
Correct |
52 ms |
18228 KB |
n = 16 |
31 |
Correct |
52 ms |
18228 KB |
n = 16 |
32 |
Correct |
52 ms |
18228 KB |
n = 16 |
33 |
Correct |
53 ms |
18228 KB |
n = 16 |
34 |
Correct |
53 ms |
18228 KB |
n = 16 |
35 |
Correct |
51 ms |
18228 KB |
n = 16 |
36 |
Correct |
29 ms |
18228 KB |
n = 15 |
37 |
Correct |
9 ms |
18228 KB |
n = 8 |
38 |
Correct |
54 ms |
18228 KB |
n = 16 |
39 |
Correct |
52 ms |
18228 KB |
n = 16 |
40 |
Correct |
9 ms |
18228 KB |
n = 9 |
41 |
Correct |
53 ms |
18228 KB |
n = 16 |
42 |
Correct |
54 ms |
18236 KB |
n = 16 |
43 |
Correct |
53 ms |
18236 KB |
n = 16 |
44 |
Correct |
9 ms |
18236 KB |
n = 9 |
45 |
Correct |
29 ms |
18236 KB |
n = 15 |
46 |
Correct |
52 ms |
18236 KB |
n = 16 |
47 |
Correct |
53 ms |
18236 KB |
n = 16 |
48 |
Correct |
54 ms |
18236 KB |
n = 16 |
49 |
Correct |
345 ms |
41708 KB |
n = 199999 |
50 |
Correct |
261 ms |
41708 KB |
n = 199991 |
51 |
Correct |
253 ms |
41708 KB |
n = 199993 |
52 |
Correct |
270 ms |
41708 KB |
n = 152076 |
53 |
Correct |
155 ms |
41708 KB |
n = 93249 |
54 |
Correct |
305 ms |
44820 KB |
n = 199910 |
55 |
Correct |
335 ms |
52928 KB |
n = 199999 |
56 |
Correct |
309 ms |
52928 KB |
n = 199997 |
57 |
Correct |
320 ms |
55092 KB |
n = 171294 |
58 |
Correct |
251 ms |
55092 KB |
n = 140872 |
59 |
Correct |
345 ms |
59700 KB |
n = 199886 |
60 |
Correct |
321 ms |
67564 KB |
n = 199996 |
61 |
Correct |
315 ms |
68096 KB |
n = 200000 |
62 |
Correct |
241 ms |
68096 KB |
n = 199998 |
63 |
Correct |
237 ms |
68096 KB |
n = 200000 |
64 |
Correct |
243 ms |
68096 KB |
n = 199998 |
65 |
Correct |
263 ms |
71496 KB |
n = 200000 |
66 |
Correct |
248 ms |
74588 KB |
n = 190000 |
67 |
Correct |
281 ms |
94436 KB |
n = 177777 |
68 |
Correct |
169 ms |
94436 KB |
n = 100000 |
69 |
Correct |
364 ms |
96444 KB |
n = 200000 |
70 |
Correct |
280 ms |
96444 KB |
n = 200000 |
71 |
Correct |
385 ms |
111324 KB |
n = 200000 |
72 |
Correct |
348 ms |
115364 KB |
n = 200000 |
73 |
Incorrect |
267 ms |
115364 KB |
answer is not correct: 42 instead of 34382661743 |
74 |
Halted |
0 ms |
0 KB |
- |