#include "towers.h"
#include <bits/stdc++.h>
using namespace std;
#define eb emplace_back
#define mp make_pair
using ii = pair<int, int>;
int N;
vector<int> H;
void init(int N, vector<int> H) {
::N = N;
::H = H;
}
int max_towers(int L, int R, int D) {
vector<int> V(H.begin() + L, H.begin() + R + 1), cl(V.size(), -1), cr(V.size(), V.size());
vector<ii> vec;
for (int i = 0; i < (int)V.size(); i++) {
{
int lo = 0, hi = (int)vec.size() - 1;
while (lo <= hi) {
int mid = (lo + hi) / 2;
if (vec[mid].first - D >= V[i]) {
cl[i] = vec[mid].second;
lo = mid + 1;
} else {
hi = mid - 1;
}
}
}
while (!vec.empty() && vec.back().first <= V[i]) {
vec.pop_back();
}
vec.eb(V[i], i);
}
vec.clear();
for (int i = (int)V.size() - 1; i >= 0; i--) {
{
int lo = 0, hi = (int)vec.size() - 1;
while (lo <= hi) {
int mid = (lo + hi) / 2;
if (vec[mid].first - D >= V[i]) {
cr[i] = vec[mid].second;
lo = mid + 1;
} else {
hi = mid - 1;
}
}
}
while (!vec.empty() && vec.back().first <= V[i]) {
vec.pop_back();
}
vec.eb(V[i], i);
}
//~ for (int i : V) {
//~ cout << i << ' ';
//~ }
//~ cout << '\n';
//~ for (int i : cl) {
//~ cout << i << ' ';
//~ }
//~ cout << '\n';
//~ for (int i : cr) {
//~ cout << i << ' ';
//~ }
//~ cout << '\n';
function<int(int, int, bool, bool)> solve = [&](int l, int r, bool a, bool b) {
if (l > r) {
return 0;
}
ii to = mp((int)2e9, -1);
for (int i = l; i <= r; i++) {
if ((!a || l <= cl[i]) && (!b || cr[i] <= r)) {
to = min(to, mp(V[i], i));
}
}
if (to.second != -1) {
return solve(l, to.second - 1, a, 1) + solve(to.second + 1, r, 1, b) + 1;
} else {
return 0;
}
};
return solve(0, (int)V.size() - 1, 0, 0);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
4038 ms |
2548 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
208 KB |
Output is correct |
| 2 |
Correct |
1 ms |
208 KB |
Output is correct |
| 3 |
Correct |
0 ms |
208 KB |
Output is correct |
| 4 |
Correct |
1 ms |
208 KB |
Output is correct |
| 5 |
Correct |
1 ms |
208 KB |
Output is correct |
| 6 |
Correct |
1 ms |
208 KB |
Output is correct |
| 7 |
Correct |
1 ms |
208 KB |
Output is correct |
| 8 |
Correct |
1 ms |
208 KB |
Output is correct |
| 9 |
Correct |
1 ms |
208 KB |
Output is correct |
| 10 |
Correct |
1 ms |
208 KB |
Output is correct |
| 11 |
Correct |
1 ms |
208 KB |
Output is correct |
| 12 |
Correct |
0 ms |
208 KB |
Output is correct |
| 13 |
Correct |
1 ms |
208 KB |
Output is correct |
| 14 |
Correct |
0 ms |
208 KB |
Output is correct |
| 15 |
Correct |
0 ms |
208 KB |
Output is correct |
| 16 |
Correct |
1 ms |
332 KB |
Output is correct |
| 17 |
Correct |
1 ms |
208 KB |
Output is correct |
| 18 |
Correct |
0 ms |
208 KB |
Output is correct |
| 19 |
Correct |
1 ms |
208 KB |
Output is correct |
| 20 |
Correct |
1 ms |
208 KB |
Output is correct |
| 21 |
Correct |
1 ms |
208 KB |
Output is correct |
| 22 |
Correct |
1 ms |
208 KB |
Output is correct |
| 23 |
Correct |
1 ms |
336 KB |
Output is correct |
| 24 |
Correct |
1 ms |
336 KB |
Output is correct |
| 25 |
Correct |
1 ms |
208 KB |
Output is correct |
| 26 |
Correct |
1 ms |
208 KB |
Output is correct |
| 27 |
Correct |
1 ms |
208 KB |
Output is correct |
| 28 |
Correct |
1 ms |
336 KB |
Output is correct |
| 29 |
Correct |
1 ms |
208 KB |
Output is correct |
| 30 |
Correct |
1 ms |
336 KB |
Output is correct |
| 31 |
Correct |
1 ms |
208 KB |
Output is correct |
| 32 |
Correct |
1 ms |
336 KB |
Output is correct |
| 33 |
Correct |
1 ms |
336 KB |
Output is correct |
| 34 |
Correct |
1 ms |
460 KB |
Output is correct |
| 35 |
Correct |
1 ms |
336 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
208 KB |
Output is correct |
| 2 |
Correct |
1 ms |
208 KB |
Output is correct |
| 3 |
Correct |
0 ms |
208 KB |
Output is correct |
| 4 |
Correct |
1 ms |
208 KB |
Output is correct |
| 5 |
Correct |
1 ms |
208 KB |
Output is correct |
| 6 |
Correct |
1 ms |
208 KB |
Output is correct |
| 7 |
Correct |
1 ms |
208 KB |
Output is correct |
| 8 |
Correct |
1 ms |
208 KB |
Output is correct |
| 9 |
Correct |
1 ms |
208 KB |
Output is correct |
| 10 |
Correct |
1 ms |
208 KB |
Output is correct |
| 11 |
Correct |
1 ms |
208 KB |
Output is correct |
| 12 |
Correct |
0 ms |
208 KB |
Output is correct |
| 13 |
Correct |
1 ms |
208 KB |
Output is correct |
| 14 |
Correct |
0 ms |
208 KB |
Output is correct |
| 15 |
Correct |
0 ms |
208 KB |
Output is correct |
| 16 |
Correct |
1 ms |
332 KB |
Output is correct |
| 17 |
Correct |
1 ms |
208 KB |
Output is correct |
| 18 |
Correct |
0 ms |
208 KB |
Output is correct |
| 19 |
Correct |
1 ms |
208 KB |
Output is correct |
| 20 |
Correct |
1 ms |
208 KB |
Output is correct |
| 21 |
Correct |
1 ms |
208 KB |
Output is correct |
| 22 |
Correct |
1 ms |
208 KB |
Output is correct |
| 23 |
Correct |
1 ms |
336 KB |
Output is correct |
| 24 |
Correct |
1 ms |
336 KB |
Output is correct |
| 25 |
Correct |
1 ms |
208 KB |
Output is correct |
| 26 |
Correct |
1 ms |
208 KB |
Output is correct |
| 27 |
Correct |
1 ms |
208 KB |
Output is correct |
| 28 |
Correct |
1 ms |
336 KB |
Output is correct |
| 29 |
Correct |
1 ms |
208 KB |
Output is correct |
| 30 |
Correct |
1 ms |
336 KB |
Output is correct |
| 31 |
Correct |
1 ms |
208 KB |
Output is correct |
| 32 |
Correct |
1 ms |
336 KB |
Output is correct |
| 33 |
Correct |
1 ms |
336 KB |
Output is correct |
| 34 |
Correct |
1 ms |
460 KB |
Output is correct |
| 35 |
Correct |
1 ms |
336 KB |
Output is correct |
| 36 |
Correct |
8 ms |
976 KB |
Output is correct |
| 37 |
Correct |
12 ms |
1488 KB |
Output is correct |
| 38 |
Correct |
10 ms |
1360 KB |
Output is correct |
| 39 |
Correct |
10 ms |
1360 KB |
Output is correct |
| 40 |
Correct |
10 ms |
1440 KB |
Output is correct |
| 41 |
Correct |
16 ms |
1992 KB |
Output is correct |
| 42 |
Correct |
9 ms |
1360 KB |
Output is correct |
| 43 |
Correct |
11 ms |
2628 KB |
Output is correct |
| 44 |
Correct |
9 ms |
1436 KB |
Output is correct |
| 45 |
Correct |
8 ms |
1360 KB |
Output is correct |
| 46 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 47 |
Correct |
17 ms |
1456 KB |
Output is correct |
| 48 |
Correct |
10 ms |
1360 KB |
Output is correct |
| 49 |
Correct |
9 ms |
1360 KB |
Output is correct |
| 50 |
Correct |
15 ms |
1724 KB |
Output is correct |
| 51 |
Correct |
15 ms |
2248 KB |
Output is correct |
| 52 |
Correct |
20 ms |
2216 KB |
Output is correct |
| 53 |
Correct |
18 ms |
2248 KB |
Output is correct |
| 54 |
Correct |
18 ms |
2248 KB |
Output is correct |
| 55 |
Correct |
16 ms |
3736 KB |
Output is correct |
| 56 |
Correct |
13 ms |
3784 KB |
Output is correct |
| 57 |
Correct |
21 ms |
2092 KB |
Output is correct |
| 58 |
Correct |
23 ms |
2240 KB |
Output is correct |
| 59 |
Correct |
27 ms |
2248 KB |
Output is correct |
| 60 |
Correct |
22 ms |
2240 KB |
Output is correct |
| 61 |
Correct |
26 ms |
2248 KB |
Output is correct |
| 62 |
Correct |
18 ms |
2248 KB |
Output is correct |
| 63 |
Correct |
21 ms |
2248 KB |
Output is correct |
| 64 |
Correct |
13 ms |
3776 KB |
Output is correct |
| 65 |
Correct |
12 ms |
3744 KB |
Output is correct |
| 66 |
Correct |
13 ms |
3144 KB |
Output is correct |
| 67 |
Correct |
13 ms |
3768 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
4070 ms |
2240 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
4019 ms |
848 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
208 KB |
Output is correct |
| 2 |
Correct |
1 ms |
208 KB |
Output is correct |
| 3 |
Correct |
0 ms |
208 KB |
Output is correct |
| 4 |
Correct |
1 ms |
208 KB |
Output is correct |
| 5 |
Correct |
1 ms |
208 KB |
Output is correct |
| 6 |
Correct |
1 ms |
208 KB |
Output is correct |
| 7 |
Correct |
1 ms |
208 KB |
Output is correct |
| 8 |
Correct |
1 ms |
208 KB |
Output is correct |
| 9 |
Correct |
1 ms |
208 KB |
Output is correct |
| 10 |
Correct |
1 ms |
208 KB |
Output is correct |
| 11 |
Correct |
1 ms |
208 KB |
Output is correct |
| 12 |
Correct |
0 ms |
208 KB |
Output is correct |
| 13 |
Correct |
1 ms |
208 KB |
Output is correct |
| 14 |
Correct |
0 ms |
208 KB |
Output is correct |
| 15 |
Correct |
0 ms |
208 KB |
Output is correct |
| 16 |
Correct |
1 ms |
332 KB |
Output is correct |
| 17 |
Correct |
1 ms |
208 KB |
Output is correct |
| 18 |
Correct |
0 ms |
208 KB |
Output is correct |
| 19 |
Correct |
1 ms |
208 KB |
Output is correct |
| 20 |
Correct |
1 ms |
208 KB |
Output is correct |
| 21 |
Correct |
1 ms |
208 KB |
Output is correct |
| 22 |
Correct |
1 ms |
208 KB |
Output is correct |
| 23 |
Correct |
1 ms |
336 KB |
Output is correct |
| 24 |
Correct |
1 ms |
336 KB |
Output is correct |
| 25 |
Correct |
1 ms |
208 KB |
Output is correct |
| 26 |
Correct |
1 ms |
208 KB |
Output is correct |
| 27 |
Correct |
1 ms |
208 KB |
Output is correct |
| 28 |
Correct |
1 ms |
336 KB |
Output is correct |
| 29 |
Correct |
1 ms |
208 KB |
Output is correct |
| 30 |
Correct |
1 ms |
336 KB |
Output is correct |
| 31 |
Correct |
1 ms |
208 KB |
Output is correct |
| 32 |
Correct |
1 ms |
336 KB |
Output is correct |
| 33 |
Correct |
1 ms |
336 KB |
Output is correct |
| 34 |
Correct |
1 ms |
460 KB |
Output is correct |
| 35 |
Correct |
1 ms |
336 KB |
Output is correct |
| 36 |
Correct |
8 ms |
976 KB |
Output is correct |
| 37 |
Correct |
12 ms |
1488 KB |
Output is correct |
| 38 |
Correct |
10 ms |
1360 KB |
Output is correct |
| 39 |
Correct |
10 ms |
1360 KB |
Output is correct |
| 40 |
Correct |
10 ms |
1440 KB |
Output is correct |
| 41 |
Correct |
16 ms |
1992 KB |
Output is correct |
| 42 |
Correct |
9 ms |
1360 KB |
Output is correct |
| 43 |
Correct |
11 ms |
2628 KB |
Output is correct |
| 44 |
Correct |
9 ms |
1436 KB |
Output is correct |
| 45 |
Correct |
8 ms |
1360 KB |
Output is correct |
| 46 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 47 |
Correct |
17 ms |
1456 KB |
Output is correct |
| 48 |
Correct |
10 ms |
1360 KB |
Output is correct |
| 49 |
Correct |
9 ms |
1360 KB |
Output is correct |
| 50 |
Correct |
15 ms |
1724 KB |
Output is correct |
| 51 |
Correct |
15 ms |
2248 KB |
Output is correct |
| 52 |
Correct |
20 ms |
2216 KB |
Output is correct |
| 53 |
Correct |
18 ms |
2248 KB |
Output is correct |
| 54 |
Correct |
18 ms |
2248 KB |
Output is correct |
| 55 |
Correct |
16 ms |
3736 KB |
Output is correct |
| 56 |
Correct |
13 ms |
3784 KB |
Output is correct |
| 57 |
Correct |
21 ms |
2092 KB |
Output is correct |
| 58 |
Correct |
23 ms |
2240 KB |
Output is correct |
| 59 |
Correct |
27 ms |
2248 KB |
Output is correct |
| 60 |
Correct |
22 ms |
2240 KB |
Output is correct |
| 61 |
Correct |
26 ms |
2248 KB |
Output is correct |
| 62 |
Correct |
18 ms |
2248 KB |
Output is correct |
| 63 |
Correct |
21 ms |
2248 KB |
Output is correct |
| 64 |
Correct |
13 ms |
3776 KB |
Output is correct |
| 65 |
Correct |
12 ms |
3744 KB |
Output is correct |
| 66 |
Correct |
13 ms |
3144 KB |
Output is correct |
| 67 |
Correct |
13 ms |
3768 KB |
Output is correct |
| 68 |
Execution timed out |
4070 ms |
2240 KB |
Time limit exceeded |
| 69 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
4038 ms |
2548 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
