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Submission #698920

# Submission time Handle Problem Language Result Execution time Memory
698920 2023-02-14T19:49:13 Z dattranxxx Global Warming (CEOI18_glo) C++11
100 / 100
 163 ms 6988 KB 
#include<bits/stdc++.h>
using namespace std;
using ll = long long;

const int N = 4e5 + 5;
int a[N], c[N];
int n, d, m = 0;

struct BIT {
  int bit[N];
  int get(int i) {
    i = upper_bound(c, c + m, i) - c;
    int res = 0;
    for (; i; i -= i & -i) {
      res = max(res, bit[i]);
    }
    return res;
  }
  void update(int i, int v) {
    i = lower_bound(c, c + m, i) - c + 1;
    for (; i <= m; i += i & -i) {
      bit[i] = max(bit[i], v);
    }
  }
} bit1, bit2;

int f[N][2];

int main() {
  cin.tie(0)->sync_with_stdio(0); cout.tie(0);
  cin >> n >> d;
  for (int i = 1; i <= n; ++i) {
    cin >> a[i];
    c[m++] = a[i];
  }
  sort(c, c + m);
  m = unique(c, c + m) - c;
  
  int res = 0;
  
  for (int i = 1; i <= n; ++i) {
    
    f[i][0] = bit1.get(a[i] - 1) + 1;
    f[i][1] = max(bit2.get(a[i] - 1) + 1, bit1.get(a[i] + d - 1) + 1);
    
    bit1.update(a[i], f[i][0]);
    bit2.update(a[i], f[i][1]);
    
    res = max(res, f[i][0]);
    res = max(res, f[i][1]);
    
  }
  
  cout << res;
  
	return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 324 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 328 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 340 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 324 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 328 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 324 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 328 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 296 KB Output is correct
26 Correct 1 ms 340 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 159 ms 6920 KB Output is correct
2 Correct 160 ms 6904 KB Output is correct
3 Correct 156 ms 6860 KB Output is correct
4 Correct 159 ms 6988 KB Output is correct
5 Correct 72 ms 5328 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 1984 KB Output is correct
2 Correct 35 ms 1952 KB Output is correct
3 Correct 36 ms 1948 KB Output is correct
4 Correct 17 ms 1620 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 21 ms 1596 KB Output is correct
7 Correct 30 ms 1988 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 3568 KB Output is correct
2 Correct 67 ms 3532 KB Output is correct
3 Correct 142 ms 6936 KB Output is correct
4 Correct 67 ms 5316 KB Output is correct
5 Correct 39 ms 3200 KB Output is correct
6 Correct 69 ms 6076 KB Output is correct
7 Correct 84 ms 6648 KB Output is correct
8 Correct 54 ms 3656 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 324 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 328 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 296 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 159 ms 6920 KB Output is correct
28 Correct 160 ms 6904 KB Output is correct
29 Correct 156 ms 6860 KB Output is correct
30 Correct 159 ms 6988 KB Output is correct
31 Correct 72 ms 5328 KB Output is correct
32 Correct 39 ms 1984 KB Output is correct
33 Correct 35 ms 1952 KB Output is correct
34 Correct 36 ms 1948 KB Output is correct
35 Correct 17 ms 1620 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 21 ms 1596 KB Output is correct
38 Correct 30 ms 1988 KB Output is correct
39 Correct 66 ms 3568 KB Output is correct
40 Correct 67 ms 3532 KB Output is correct
41 Correct 142 ms 6936 KB Output is correct
42 Correct 67 ms 5316 KB Output is correct
43 Correct 39 ms 3200 KB Output is correct
44 Correct 69 ms 6076 KB Output is correct
45 Correct 84 ms 6648 KB Output is correct
46 Correct 54 ms 3656 KB Output is correct
47 Correct 78 ms 3624 KB Output is correct
48 Correct 79 ms 3588 KB Output is correct
49 Correct 163 ms 6872 KB Output is correct
50 Correct 71 ms 5388 KB Output is correct
51 Correct 63 ms 4396 KB Output is correct
52 Correct 97 ms 6176 KB Output is correct
53 Correct 75 ms 6204 KB Output is correct
54 Correct 75 ms 6880 KB Output is correct
55 Correct 130 ms 6884 KB Output is correct