// Author: Kajetan Ramsza
#include "bits/stdc++.h"
#include "towers.h"
using namespace std;
#define rep(i,a,b) for(int i=(a);i<(b);++i)
#define all(x) begin(x), end(x)
#define sz(x) (int)x.size()
typedef long long ll;
typedef vector<int> vi;
typedef pair<int,int> pii;
#ifdef DEBUG
auto &operator<<(auto &os, const pair<auto, auto> &p) {
return os<<"("<<p.first<<", "<<p.second<<")";
}
auto &operator<<(auto &os, const auto &v) {
os << "{";
for(auto it=begin(v);it!=end(v);it++) {
if(it != begin(v)) os<<", ";
os<<(*it);
}
return os<<"}";
}
void dbg_out(auto... x) {
((cerr<<' '<<x), ...) << endl;
}
#define dbg(x...) cerr<<"("<<#x<<"):", dbg_out(x)
#else
#define dbg(...)
#endif
const int inf = 2e9 + 7;
int n;
vi h;
void init(int N, vi H) {
n = N;
h = H;
}
int max_towers(int L, int R, int D) {
int num = 0;
int prev = inf;
bool small = false;
rep(i,L,R+1) {
if(small) {
if(h[i] < prev) {
prev = h[i];
}
else if(h[i] - D >= prev) {
num++;
prev = h[i];
small = false;
}
} else {
if(h[i] > prev) {
prev = h[i];
}
else if(h[i] + D <= prev) {
num++;
prev = h[i];
small = true;
}
}
}
// if(num == 0) return 1;
return (num + 1) / 2;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1020 ms |
1112 KB |
Output is correct |
2 |
Correct |
3089 ms |
1364 KB |
Output is correct |
3 |
Correct |
3088 ms |
1368 KB |
Output is correct |
4 |
Correct |
3131 ms |
1368 KB |
Output is correct |
5 |
Correct |
1963 ms |
1368 KB |
Output is correct |
6 |
Correct |
3023 ms |
1368 KB |
Output is correct |
7 |
Correct |
1915 ms |
1368 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
596 KB |
Output is correct |
7 |
Correct |
1 ms |
344 KB |
Output is correct |
8 |
Correct |
1 ms |
344 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
0 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
1 ms |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
344 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
1 ms |
344 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
1 ms |
344 KB |
Output is correct |
21 |
Correct |
1 ms |
344 KB |
Output is correct |
22 |
Correct |
1 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
344 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
1 ms |
344 KB |
Output is correct |
26 |
Correct |
1 ms |
344 KB |
Output is correct |
27 |
Correct |
0 ms |
344 KB |
Output is correct |
28 |
Correct |
0 ms |
344 KB |
Output is correct |
29 |
Correct |
1 ms |
344 KB |
Output is correct |
30 |
Correct |
0 ms |
344 KB |
Output is correct |
31 |
Correct |
0 ms |
344 KB |
Output is correct |
32 |
Correct |
1 ms |
344 KB |
Output is correct |
33 |
Correct |
0 ms |
344 KB |
Output is correct |
34 |
Correct |
1 ms |
344 KB |
Output is correct |
35 |
Correct |
0 ms |
344 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
596 KB |
Output is correct |
7 |
Correct |
1 ms |
344 KB |
Output is correct |
8 |
Correct |
1 ms |
344 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
0 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
1 ms |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
344 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
1 ms |
344 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
1 ms |
344 KB |
Output is correct |
21 |
Correct |
1 ms |
344 KB |
Output is correct |
22 |
Correct |
1 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
344 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
1 ms |
344 KB |
Output is correct |
26 |
Correct |
1 ms |
344 KB |
Output is correct |
27 |
Correct |
0 ms |
344 KB |
Output is correct |
28 |
Correct |
0 ms |
344 KB |
Output is correct |
29 |
Correct |
1 ms |
344 KB |
Output is correct |
30 |
Correct |
0 ms |
344 KB |
Output is correct |
31 |
Correct |
0 ms |
344 KB |
Output is correct |
32 |
Correct |
1 ms |
344 KB |
Output is correct |
33 |
Correct |
0 ms |
344 KB |
Output is correct |
34 |
Correct |
1 ms |
344 KB |
Output is correct |
35 |
Correct |
0 ms |
344 KB |
Output is correct |
36 |
Correct |
6 ms |
1112 KB |
Output is correct |
37 |
Correct |
9 ms |
1596 KB |
Output is correct |
38 |
Correct |
10 ms |
1368 KB |
Output is correct |
39 |
Correct |
15 ms |
1368 KB |
Output is correct |
40 |
Correct |
9 ms |
1604 KB |
Output is correct |
41 |
Correct |
9 ms |
1368 KB |
Output is correct |
42 |
Correct |
14 ms |
1368 KB |
Output is correct |
43 |
Correct |
17 ms |
1368 KB |
Output is correct |
44 |
Correct |
9 ms |
1368 KB |
Output is correct |
45 |
Correct |
9 ms |
1368 KB |
Output is correct |
46 |
Correct |
10 ms |
1600 KB |
Output is correct |
47 |
Correct |
9 ms |
1368 KB |
Output is correct |
48 |
Correct |
17 ms |
1604 KB |
Output is correct |
49 |
Correct |
9 ms |
1368 KB |
Output is correct |
50 |
Correct |
17 ms |
1368 KB |
Output is correct |
51 |
Correct |
9 ms |
1368 KB |
Output is correct |
52 |
Correct |
9 ms |
1368 KB |
Output is correct |
53 |
Correct |
9 ms |
1368 KB |
Output is correct |
54 |
Correct |
11 ms |
1596 KB |
Output is correct |
55 |
Correct |
9 ms |
1368 KB |
Output is correct |
56 |
Correct |
12 ms |
1624 KB |
Output is correct |
57 |
Correct |
9 ms |
1368 KB |
Output is correct |
58 |
Correct |
16 ms |
1368 KB |
Output is correct |
59 |
Correct |
9 ms |
1368 KB |
Output is correct |
60 |
Correct |
10 ms |
1596 KB |
Output is correct |
61 |
Correct |
9 ms |
1600 KB |
Output is correct |
62 |
Correct |
9 ms |
1368 KB |
Output is correct |
63 |
Correct |
16 ms |
1596 KB |
Output is correct |
64 |
Correct |
8 ms |
1368 KB |
Output is correct |
65 |
Correct |
8 ms |
1596 KB |
Output is correct |
66 |
Correct |
9 ms |
1368 KB |
Output is correct |
67 |
Correct |
9 ms |
1368 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
4018 ms |
1368 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3183 ms |
688 KB |
Output is correct |
2 |
Execution timed out |
4040 ms |
1368 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
596 KB |
Output is correct |
7 |
Correct |
1 ms |
344 KB |
Output is correct |
8 |
Correct |
1 ms |
344 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
0 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
1 ms |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
344 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
1 ms |
344 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
1 ms |
344 KB |
Output is correct |
21 |
Correct |
1 ms |
344 KB |
Output is correct |
22 |
Correct |
1 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
344 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
1 ms |
344 KB |
Output is correct |
26 |
Correct |
1 ms |
344 KB |
Output is correct |
27 |
Correct |
0 ms |
344 KB |
Output is correct |
28 |
Correct |
0 ms |
344 KB |
Output is correct |
29 |
Correct |
1 ms |
344 KB |
Output is correct |
30 |
Correct |
0 ms |
344 KB |
Output is correct |
31 |
Correct |
0 ms |
344 KB |
Output is correct |
32 |
Correct |
1 ms |
344 KB |
Output is correct |
33 |
Correct |
0 ms |
344 KB |
Output is correct |
34 |
Correct |
1 ms |
344 KB |
Output is correct |
35 |
Correct |
0 ms |
344 KB |
Output is correct |
36 |
Correct |
6 ms |
1112 KB |
Output is correct |
37 |
Correct |
9 ms |
1596 KB |
Output is correct |
38 |
Correct |
10 ms |
1368 KB |
Output is correct |
39 |
Correct |
15 ms |
1368 KB |
Output is correct |
40 |
Correct |
9 ms |
1604 KB |
Output is correct |
41 |
Correct |
9 ms |
1368 KB |
Output is correct |
42 |
Correct |
14 ms |
1368 KB |
Output is correct |
43 |
Correct |
17 ms |
1368 KB |
Output is correct |
44 |
Correct |
9 ms |
1368 KB |
Output is correct |
45 |
Correct |
9 ms |
1368 KB |
Output is correct |
46 |
Correct |
10 ms |
1600 KB |
Output is correct |
47 |
Correct |
9 ms |
1368 KB |
Output is correct |
48 |
Correct |
17 ms |
1604 KB |
Output is correct |
49 |
Correct |
9 ms |
1368 KB |
Output is correct |
50 |
Correct |
17 ms |
1368 KB |
Output is correct |
51 |
Correct |
9 ms |
1368 KB |
Output is correct |
52 |
Correct |
9 ms |
1368 KB |
Output is correct |
53 |
Correct |
9 ms |
1368 KB |
Output is correct |
54 |
Correct |
11 ms |
1596 KB |
Output is correct |
55 |
Correct |
9 ms |
1368 KB |
Output is correct |
56 |
Correct |
12 ms |
1624 KB |
Output is correct |
57 |
Correct |
9 ms |
1368 KB |
Output is correct |
58 |
Correct |
16 ms |
1368 KB |
Output is correct |
59 |
Correct |
9 ms |
1368 KB |
Output is correct |
60 |
Correct |
10 ms |
1596 KB |
Output is correct |
61 |
Correct |
9 ms |
1600 KB |
Output is correct |
62 |
Correct |
9 ms |
1368 KB |
Output is correct |
63 |
Correct |
16 ms |
1596 KB |
Output is correct |
64 |
Correct |
8 ms |
1368 KB |
Output is correct |
65 |
Correct |
8 ms |
1596 KB |
Output is correct |
66 |
Correct |
9 ms |
1368 KB |
Output is correct |
67 |
Correct |
9 ms |
1368 KB |
Output is correct |
68 |
Execution timed out |
4018 ms |
1368 KB |
Time limit exceeded |
69 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1020 ms |
1112 KB |
Output is correct |
2 |
Correct |
3089 ms |
1364 KB |
Output is correct |
3 |
Correct |
3088 ms |
1368 KB |
Output is correct |
4 |
Correct |
3131 ms |
1368 KB |
Output is correct |
5 |
Correct |
1963 ms |
1368 KB |
Output is correct |
6 |
Correct |
3023 ms |
1368 KB |
Output is correct |
7 |
Correct |
1915 ms |
1368 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
1 ms |
344 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
1 ms |
344 KB |
Output is correct |
16 |
Correct |
1 ms |
596 KB |
Output is correct |
17 |
Correct |
1 ms |
344 KB |
Output is correct |
18 |
Correct |
1 ms |
344 KB |
Output is correct |
19 |
Correct |
1 ms |
344 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
1 ms |
344 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
344 KB |
Output is correct |
24 |
Correct |
1 ms |
344 KB |
Output is correct |
25 |
Correct |
0 ms |
344 KB |
Output is correct |
26 |
Correct |
1 ms |
344 KB |
Output is correct |
27 |
Correct |
1 ms |
344 KB |
Output is correct |
28 |
Correct |
0 ms |
344 KB |
Output is correct |
29 |
Correct |
0 ms |
344 KB |
Output is correct |
30 |
Correct |
1 ms |
344 KB |
Output is correct |
31 |
Correct |
1 ms |
344 KB |
Output is correct |
32 |
Correct |
1 ms |
344 KB |
Output is correct |
33 |
Correct |
0 ms |
344 KB |
Output is correct |
34 |
Correct |
0 ms |
344 KB |
Output is correct |
35 |
Correct |
1 ms |
344 KB |
Output is correct |
36 |
Correct |
1 ms |
344 KB |
Output is correct |
37 |
Correct |
0 ms |
344 KB |
Output is correct |
38 |
Correct |
0 ms |
344 KB |
Output is correct |
39 |
Correct |
1 ms |
344 KB |
Output is correct |
40 |
Correct |
0 ms |
344 KB |
Output is correct |
41 |
Correct |
0 ms |
344 KB |
Output is correct |
42 |
Correct |
1 ms |
344 KB |
Output is correct |
43 |
Correct |
0 ms |
344 KB |
Output is correct |
44 |
Correct |
1 ms |
344 KB |
Output is correct |
45 |
Correct |
0 ms |
344 KB |
Output is correct |
46 |
Correct |
6 ms |
1112 KB |
Output is correct |
47 |
Correct |
9 ms |
1596 KB |
Output is correct |
48 |
Correct |
10 ms |
1368 KB |
Output is correct |
49 |
Correct |
15 ms |
1368 KB |
Output is correct |
50 |
Correct |
9 ms |
1604 KB |
Output is correct |
51 |
Correct |
9 ms |
1368 KB |
Output is correct |
52 |
Correct |
14 ms |
1368 KB |
Output is correct |
53 |
Correct |
17 ms |
1368 KB |
Output is correct |
54 |
Correct |
9 ms |
1368 KB |
Output is correct |
55 |
Correct |
9 ms |
1368 KB |
Output is correct |
56 |
Correct |
10 ms |
1600 KB |
Output is correct |
57 |
Correct |
9 ms |
1368 KB |
Output is correct |
58 |
Correct |
17 ms |
1604 KB |
Output is correct |
59 |
Correct |
9 ms |
1368 KB |
Output is correct |
60 |
Correct |
17 ms |
1368 KB |
Output is correct |
61 |
Correct |
9 ms |
1368 KB |
Output is correct |
62 |
Correct |
9 ms |
1368 KB |
Output is correct |
63 |
Correct |
9 ms |
1368 KB |
Output is correct |
64 |
Correct |
11 ms |
1596 KB |
Output is correct |
65 |
Correct |
9 ms |
1368 KB |
Output is correct |
66 |
Correct |
12 ms |
1624 KB |
Output is correct |
67 |
Correct |
9 ms |
1368 KB |
Output is correct |
68 |
Correct |
16 ms |
1368 KB |
Output is correct |
69 |
Correct |
9 ms |
1368 KB |
Output is correct |
70 |
Correct |
10 ms |
1596 KB |
Output is correct |
71 |
Correct |
9 ms |
1600 KB |
Output is correct |
72 |
Correct |
9 ms |
1368 KB |
Output is correct |
73 |
Correct |
16 ms |
1596 KB |
Output is correct |
74 |
Correct |
8 ms |
1368 KB |
Output is correct |
75 |
Correct |
8 ms |
1596 KB |
Output is correct |
76 |
Correct |
9 ms |
1368 KB |
Output is correct |
77 |
Correct |
9 ms |
1368 KB |
Output is correct |
78 |
Execution timed out |
4018 ms |
1368 KB |
Time limit exceeded |
79 |
Halted |
0 ms |
0 KB |
- |