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Submission #674360

# Submission time Handle Problem Language Result Execution time Memory
674360 2022-12-23T18:50:27 Z ThinGarfield Global Warming (CEOI18_glo) C++11
100 / 100
 107 ms 5436 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
#define mp make_pair
#define F first
#define S second

constexpr int maxn = 2e5 + 10;

int n, x;
int t[maxn];
int l[maxn];
vector<int> dp;

int main() {
  // ios_base::sync_with_stdio(false);
  // cin.tie(NULL);

  cin >> n >> x;
  for (int i = 0; i < n; i++) cin >> t[i];

  vector<int> dp(n, INT_MAX);
  int lis = 0;
  for (int i = 0; i < n; i++) {
    int j = lower_bound(dp.begin(), dp.end(), t[i]) - dp.begin();
    dp[j] = t[i];
    l[i] = j + 1;
    lis = max(lis, l[i]);
  }

  vector<int> dp2(n, INT_MAX);
  for (int i = n - 1; i >= 0; i--) {
    int p = lower_bound(dp2.begin(), dp2.end(), x - t[i]) - dp2.begin();
    lis = max(lis, l[i] + p);

    int ins = lower_bound(dp2.begin(), dp2.end(), -t[i]) - dp2.begin();
    dp2[ins] = -t[i];
  }
  cout << lis << '\n';

  return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 312 KB Output is correct
3 Correct 1 ms 308 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 300 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 312 KB Output is correct
3 Correct 1 ms 308 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 300 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 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 0 ms 308 KB Output is correct
17 Correct 0 ms 312 KB Output is correct
18 Correct 0 ms 212 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 312 KB Output is correct
3 Correct 1 ms 308 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 300 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 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 0 ms 308 KB Output is correct
17 Correct 0 ms 312 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 316 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 320 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 308 KB Output is correct
26 Correct 1 ms 312 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 106 ms 5360 KB Output is correct
2 Correct 107 ms 5396 KB Output is correct
3 Correct 107 ms 5312 KB Output is correct
4 Correct 104 ms 5324 KB Output is correct
5 Correct 78 ms 4496 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 1536 KB Output is correct
2 Correct 26 ms 1464 KB Output is correct
3 Correct 26 ms 1528 KB Output is correct
4 Correct 18 ms 1352 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 19 ms 1356 KB Output is correct
7 Correct 25 ms 1548 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 2840 KB Output is correct
2 Correct 51 ms 2828 KB Output is correct
3 Correct 104 ms 5356 KB Output is correct
4 Correct 73 ms 4508 KB Output is correct
5 Correct 37 ms 2340 KB Output is correct
6 Correct 66 ms 4452 KB Output is correct
7 Correct 87 ms 5116 KB Output is correct
8 Correct 48 ms 2748 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 312 KB Output is correct
3 Correct 1 ms 308 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 300 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 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 0 ms 308 KB Output is correct
17 Correct 0 ms 312 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 316 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 320 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 308 KB Output is correct
26 Correct 1 ms 312 KB Output is correct
27 Correct 106 ms 5360 KB Output is correct
28 Correct 107 ms 5396 KB Output is correct
29 Correct 107 ms 5312 KB Output is correct
30 Correct 104 ms 5324 KB Output is correct
31 Correct 78 ms 4496 KB Output is correct
32 Correct 26 ms 1536 KB Output is correct
33 Correct 26 ms 1464 KB Output is correct
34 Correct 26 ms 1528 KB Output is correct
35 Correct 18 ms 1352 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 19 ms 1356 KB Output is correct
38 Correct 25 ms 1548 KB Output is correct
39 Correct 52 ms 2840 KB Output is correct
40 Correct 51 ms 2828 KB Output is correct
41 Correct 104 ms 5356 KB Output is correct
42 Correct 73 ms 4508 KB Output is correct
43 Correct 37 ms 2340 KB Output is correct
44 Correct 66 ms 4452 KB Output is correct
45 Correct 87 ms 5116 KB Output is correct
46 Correct 48 ms 2748 KB Output is correct
47 Correct 51 ms 2764 KB Output is correct
48 Correct 55 ms 2892 KB Output is correct
49 Correct 103 ms 5420 KB Output is correct
50 Correct 71 ms 4544 KB Output is correct
51 Correct 56 ms 3496 KB Output is correct
52 Correct 75 ms 4608 KB Output is correct
53 Correct 70 ms 4692 KB Output is correct
54 Correct 94 ms 5364 KB Output is correct
55 Correct 99 ms 5436 KB Output is correct