#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
using num = long long;
using idata = vector<int>;
using igrid = vector<idata>;
using ndata = vector<num>;
using ngrid = vector<ndata>;
using nmap = map<int, num>;
const num INF = 1e18;
const num NINF = -INF;
template <typename U, typename V>
struct MapCumul {
map<U, V> s;
V d;
MapCumul (map<U, V> &m, V start) {
V h = start;
d = start;
for (const auto &X : m) {
h += X.second;
s.insert({ X.first, h });
}
}
V get (U x) {
auto it = s.upper_bound(x);
if (it == s.begin()) return d;
it --;
return (*it).second;
}
};
struct LocalResult {
int N;
map<int, num> ascend, descend;
// ascend[0] = descend[0]
// ascend[i] => ascend[j] ifof i < j
// descend[i] => descend[j] ifof i > j
LocalResult (int _N) {
N = _N;
ascend.insert({ 0, 0 });
}
LocalResult next (nmap &weights) {
LocalResult next(N);
MapCumul<int, num> cumul(weights, 0);
vector<int> positions = { 0 };
for (const auto &data : weights) {
if (positions[positions.size()] + 1 != data.first)
positions.push_back(data.first - 1);
positions.push_back(data.first);
}
if (positions[positions.size() - 1] != N)
positions.push_back(N);
auto it_ascend = ascend.begin();
auto it_descend = descend.begin();
num opt_ascend = NINF;
num opt_desc_c = NINF;
num opt_desc = NINF;
for (const auto &descend_data : descend) {
opt_desc_c = max(
opt_desc_c,
descend_data.second + cumul.get(descend_data.first)
);
}
for (int i = 1; i <= positions.size(); i ++) {
num mx = NINF;
int pos = positions[i];
num cml = cumul.get(pos);
while (it_ascend != ascend.end() && (*it_ascend).first <= pos) {
int pas = (*it_ascend).first;
num vas = (*it_ascend).second;
opt_ascend = max(opt_ascend, vas - cumul.get(pas));
it_ascend ++;
}
mx = max(mx, opt_ascend + cml);
while (it_descend != descend.end() && (*it_descend).first <= pos) {
int pds = (*it_descend).first;
num vds = (*it_descend).second;
opt_desc = max(opt_desc, vds);
it_descend ++;
}
mx = max(mx, opt_desc + cumul.get(pos));
mx = max(mx, opt_desc_c);
next.ascend.insert({ pos, mx });
}
it_descend = descend.end();
if (it_descend != descend.begin()) it_descend --;
bool cdescend = it_descend != descend.end();
num opt_descpc = NINF;
for (int i = positions.size() - 1; i >= 0; i --) {
int pos = positions[i];
num cml = cumul.get(pos);
num mx = NINF;
while (cdescend && (*it_descend).first >= pos) {
int pas = (*it_descend).first;
num pbs = (*it_descend).second;
opt_descpc = max(
opt_descpc,
pbs + cumul.get(pas)
);
if (it_descend == descend.begin()) cdescend = false;
else it_descend --;
}
mx = max(mx, opt_descpc - cml);
next.descend.insert({ pos, mx });
}
for (const auto &ascend_data : ascend) {
int pos = ascend_data.first;
auto it = next.descend.find(pos);
num res = ascend_data.second;
if (it != next.descend.end()) {
const auto f = *it;
res = max(res, f.second);
next.descend.erase(pos);
}
next.descend.insert({ pos, res });
}
return next;
}
};
ndata cumul (ndata &arr) {
ndata res (arr.size() + 1, 0);
for (int i = 0; i < arr.size(); i ++)
res[i + 1] = res[i] + arr[i];
return res;
}
num max_weights(int N, int M, idata X, idata Y, idata W) {
LocalResult result (N);
vector<map<int, num>> grid(N + 1);
for (int i = 0; i < M; i ++)
grid[X[i] + 1].insert({ Y[i] + 1, W[i] });
num res = NINF;
for (int i = 0; i <= N; i ++) {
result = result.next( grid[i] );
if (i == N - 1) {
for (const auto &u : result.ascend) res = max(res, u.second);
}
}
for (const auto &u : result.descend) res = max(res, u.second);
return res;
}
Compilation message
fish.cpp: In member function 'LocalResult LocalResult::next(nmap&)':
fish.cpp:79:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
79 | for (int i = 1; i <= positions.size(); i ++) {
| ~~^~~~~~~~~~~~~~~~~~~
fish.cpp:94:13: warning: unused variable 'pds' [-Wunused-variable]
94 | int pds = (*it_descend).first;
| ^~~
fish.cpp: In function 'ndata cumul(ndata&)':
fish.cpp:152:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
152 | for (int i = 0; i < arr.size(); i ++)
| ~~^~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
205 ms |
28220 KB |
Output is correct |
2 |
Correct |
251 ms |
33136 KB |
Output is correct |
3 |
Correct |
31 ms |
4948 KB |
Output is correct |
4 |
Correct |
32 ms |
4948 KB |
Output is correct |
5 |
Correct |
790 ms |
49872 KB |
Output is correct |
6 |
Correct |
438 ms |
30828 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
427 ms |
46472 KB |
Output is correct |
3 |
Correct |
550 ms |
54324 KB |
Output is correct |
4 |
Correct |
215 ms |
28500 KB |
Output is correct |
5 |
Correct |
260 ms |
33252 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
296 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
32 ms |
4948 KB |
Output is correct |
11 |
Correct |
32 ms |
4948 KB |
Output is correct |
12 |
Correct |
214 ms |
28484 KB |
Output is correct |
13 |
Correct |
253 ms |
33224 KB |
Output is correct |
14 |
Correct |
230 ms |
28448 KB |
Output is correct |
15 |
Correct |
265 ms |
28408 KB |
Output is correct |
16 |
Correct |
230 ms |
28432 KB |
Output is correct |
17 |
Correct |
275 ms |
31544 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
32 ms |
4948 KB |
Output is correct |
2 |
Correct |
34 ms |
4948 KB |
Output is correct |
3 |
Correct |
67 ms |
9140 KB |
Output is correct |
4 |
Correct |
55 ms |
8036 KB |
Output is correct |
5 |
Correct |
106 ms |
13604 KB |
Output is correct |
6 |
Correct |
107 ms |
13604 KB |
Output is correct |
7 |
Correct |
117 ms |
13612 KB |
Output is correct |
8 |
Correct |
120 ms |
13608 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
2 ms |
340 KB |
Output is correct |
10 |
Correct |
2 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
2 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
2 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
2 ms |
340 KB |
Output is correct |
10 |
Correct |
2 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
2 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
2 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
3 ms |
468 KB |
Output is correct |
17 |
Correct |
70 ms |
4344 KB |
Output is correct |
18 |
Correct |
64 ms |
4416 KB |
Output is correct |
19 |
Correct |
55 ms |
4324 KB |
Output is correct |
20 |
Correct |
59 ms |
4312 KB |
Output is correct |
21 |
Correct |
64 ms |
4368 KB |
Output is correct |
22 |
Correct |
130 ms |
8276 KB |
Output is correct |
23 |
Correct |
15 ms |
1260 KB |
Output is correct |
24 |
Correct |
50 ms |
3076 KB |
Output is correct |
25 |
Correct |
2 ms |
336 KB |
Output is correct |
26 |
Correct |
13 ms |
1108 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
2 ms |
340 KB |
Output is correct |
10 |
Correct |
2 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
2 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
2 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
3 ms |
468 KB |
Output is correct |
17 |
Correct |
70 ms |
4344 KB |
Output is correct |
18 |
Correct |
64 ms |
4416 KB |
Output is correct |
19 |
Correct |
55 ms |
4324 KB |
Output is correct |
20 |
Correct |
59 ms |
4312 KB |
Output is correct |
21 |
Correct |
64 ms |
4368 KB |
Output is correct |
22 |
Correct |
130 ms |
8276 KB |
Output is correct |
23 |
Correct |
15 ms |
1260 KB |
Output is correct |
24 |
Correct |
50 ms |
3076 KB |
Output is correct |
25 |
Correct |
2 ms |
336 KB |
Output is correct |
26 |
Correct |
13 ms |
1108 KB |
Output is correct |
27 |
Correct |
3 ms |
624 KB |
Output is correct |
28 |
Correct |
379 ms |
19300 KB |
Output is correct |
29 |
Correct |
594 ms |
27468 KB |
Output is correct |
30 |
Correct |
606 ms |
26504 KB |
Output is correct |
31 |
Correct |
623 ms |
26516 KB |
Output is correct |
32 |
Correct |
486 ms |
26424 KB |
Output is correct |
33 |
Correct |
611 ms |
26520 KB |
Output is correct |
34 |
Correct |
596 ms |
26600 KB |
Output is correct |
35 |
Correct |
171 ms |
10572 KB |
Output is correct |
36 |
Correct |
648 ms |
26732 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
32 ms |
4948 KB |
Output is correct |
2 |
Correct |
34 ms |
4948 KB |
Output is correct |
3 |
Correct |
67 ms |
9140 KB |
Output is correct |
4 |
Correct |
55 ms |
8036 KB |
Output is correct |
5 |
Correct |
106 ms |
13604 KB |
Output is correct |
6 |
Correct |
107 ms |
13604 KB |
Output is correct |
7 |
Correct |
117 ms |
13612 KB |
Output is correct |
8 |
Correct |
120 ms |
13608 KB |
Output is correct |
9 |
Correct |
105 ms |
13540 KB |
Output is correct |
10 |
Correct |
82 ms |
11256 KB |
Output is correct |
11 |
Correct |
183 ms |
22220 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
31 ms |
4948 KB |
Output is correct |
19 |
Correct |
31 ms |
4948 KB |
Output is correct |
20 |
Correct |
34 ms |
4948 KB |
Output is correct |
21 |
Correct |
33 ms |
4948 KB |
Output is correct |
22 |
Correct |
158 ms |
13504 KB |
Output is correct |
23 |
Correct |
203 ms |
22112 KB |
Output is correct |
24 |
Correct |
242 ms |
22224 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
205 ms |
28220 KB |
Output is correct |
2 |
Correct |
251 ms |
33136 KB |
Output is correct |
3 |
Correct |
31 ms |
4948 KB |
Output is correct |
4 |
Correct |
32 ms |
4948 KB |
Output is correct |
5 |
Correct |
790 ms |
49872 KB |
Output is correct |
6 |
Correct |
438 ms |
30828 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
427 ms |
46472 KB |
Output is correct |
9 |
Correct |
550 ms |
54324 KB |
Output is correct |
10 |
Correct |
215 ms |
28500 KB |
Output is correct |
11 |
Correct |
260 ms |
33252 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
296 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
32 ms |
4948 KB |
Output is correct |
17 |
Correct |
32 ms |
4948 KB |
Output is correct |
18 |
Correct |
214 ms |
28484 KB |
Output is correct |
19 |
Correct |
253 ms |
33224 KB |
Output is correct |
20 |
Correct |
230 ms |
28448 KB |
Output is correct |
21 |
Correct |
265 ms |
28408 KB |
Output is correct |
22 |
Correct |
230 ms |
28432 KB |
Output is correct |
23 |
Correct |
275 ms |
31544 KB |
Output is correct |
24 |
Correct |
32 ms |
4948 KB |
Output is correct |
25 |
Correct |
34 ms |
4948 KB |
Output is correct |
26 |
Correct |
67 ms |
9140 KB |
Output is correct |
27 |
Correct |
55 ms |
8036 KB |
Output is correct |
28 |
Correct |
106 ms |
13604 KB |
Output is correct |
29 |
Correct |
107 ms |
13604 KB |
Output is correct |
30 |
Correct |
117 ms |
13612 KB |
Output is correct |
31 |
Correct |
120 ms |
13608 KB |
Output is correct |
32 |
Correct |
1 ms |
212 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
1 ms |
212 KB |
Output is correct |
35 |
Correct |
0 ms |
212 KB |
Output is correct |
36 |
Correct |
0 ms |
212 KB |
Output is correct |
37 |
Correct |
1 ms |
212 KB |
Output is correct |
38 |
Correct |
1 ms |
212 KB |
Output is correct |
39 |
Correct |
1 ms |
212 KB |
Output is correct |
40 |
Correct |
2 ms |
340 KB |
Output is correct |
41 |
Correct |
2 ms |
468 KB |
Output is correct |
42 |
Correct |
1 ms |
340 KB |
Output is correct |
43 |
Correct |
2 ms |
340 KB |
Output is correct |
44 |
Correct |
1 ms |
212 KB |
Output is correct |
45 |
Correct |
2 ms |
340 KB |
Output is correct |
46 |
Correct |
1 ms |
212 KB |
Output is correct |
47 |
Correct |
3 ms |
468 KB |
Output is correct |
48 |
Correct |
70 ms |
4344 KB |
Output is correct |
49 |
Correct |
64 ms |
4416 KB |
Output is correct |
50 |
Correct |
55 ms |
4324 KB |
Output is correct |
51 |
Correct |
59 ms |
4312 KB |
Output is correct |
52 |
Correct |
64 ms |
4368 KB |
Output is correct |
53 |
Correct |
130 ms |
8276 KB |
Output is correct |
54 |
Correct |
15 ms |
1260 KB |
Output is correct |
55 |
Correct |
50 ms |
3076 KB |
Output is correct |
56 |
Correct |
2 ms |
336 KB |
Output is correct |
57 |
Correct |
13 ms |
1108 KB |
Output is correct |
58 |
Correct |
3 ms |
624 KB |
Output is correct |
59 |
Correct |
379 ms |
19300 KB |
Output is correct |
60 |
Correct |
594 ms |
27468 KB |
Output is correct |
61 |
Correct |
606 ms |
26504 KB |
Output is correct |
62 |
Correct |
623 ms |
26516 KB |
Output is correct |
63 |
Correct |
486 ms |
26424 KB |
Output is correct |
64 |
Correct |
611 ms |
26520 KB |
Output is correct |
65 |
Correct |
596 ms |
26600 KB |
Output is correct |
66 |
Correct |
171 ms |
10572 KB |
Output is correct |
67 |
Correct |
648 ms |
26732 KB |
Output is correct |
68 |
Correct |
105 ms |
13540 KB |
Output is correct |
69 |
Correct |
82 ms |
11256 KB |
Output is correct |
70 |
Correct |
183 ms |
22220 KB |
Output is correct |
71 |
Correct |
1 ms |
212 KB |
Output is correct |
72 |
Correct |
0 ms |
212 KB |
Output is correct |
73 |
Correct |
0 ms |
212 KB |
Output is correct |
74 |
Correct |
0 ms |
212 KB |
Output is correct |
75 |
Correct |
1 ms |
212 KB |
Output is correct |
76 |
Correct |
0 ms |
212 KB |
Output is correct |
77 |
Correct |
31 ms |
4948 KB |
Output is correct |
78 |
Correct |
31 ms |
4948 KB |
Output is correct |
79 |
Correct |
34 ms |
4948 KB |
Output is correct |
80 |
Correct |
33 ms |
4948 KB |
Output is correct |
81 |
Correct |
158 ms |
13504 KB |
Output is correct |
82 |
Correct |
203 ms |
22112 KB |
Output is correct |
83 |
Correct |
242 ms |
22224 KB |
Output is correct |
84 |
Correct |
905 ms |
42644 KB |
Output is correct |
85 |
Correct |
851 ms |
44608 KB |
Output is correct |
86 |
Correct |
428 ms |
30280 KB |
Output is correct |
87 |
Correct |
480 ms |
31072 KB |
Output is correct |
88 |
Correct |
1 ms |
212 KB |
Output is correct |
89 |
Correct |
462 ms |
30980 KB |
Output is correct |
90 |
Incorrect |
468 ms |
31136 KB |
1st lines differ - on the 1st token, expected: '109258562863783', found: '109255391578752' |
91 |
Halted |
0 ms |
0 KB |
- |