oj.uz

Submission #413564

# Submission time Handle Problem Language Result Execution time Memory
413564 2021-05-28T22:55:27 Z nkato Global Warming (CEOI18_glo) C++17
100 / 100
 66 ms 5328 KB 
#include <bits/stdc++.h>

using namespace std;

const int nax = 2e5+10;
int pfx[nax];

void smx(int& a, int b) { a = max(a, b); }

int main() {


	// freopen(".in", "r", stdin);
	// freopen(".out", "w", stdout);

    ios_base::sync_with_stdio(0);
    cin.tie(0);

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

    int mx = 0;
	vector<int> dp(n, INT_MAX);
	for(int i = 0; i < n; i++) {
		int j = (int) (lower_bound(begin(dp), end(dp), t[i])-begin(dp));
		dp[j] = t[i];
		pfx[i] = j+1;
		smx(mx, pfx[i]);
	}

	dp = vector<int>(n, INT_MAX);

	for(int i = n-1; i >= 0; i--) {
		int pos = (int) (lower_bound(begin(dp), end(dp), -t[i]+x)-begin(dp));
		smx(mx, pfx[i]+pos);
		int j = (int) (lower_bound(begin(dp), end(dp), -t[i])-begin(dp));
		dp[j] = -t[i];
	}

	cout << mx << endl;
    
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 316 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 204 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 316 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 316 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 3396 KB Output is correct
2 Correct 64 ms 5316 KB Output is correct
3 Correct 65 ms 5292 KB Output is correct
4 Correct 63 ms 5316 KB Output is correct
5 Correct 45 ms 4552 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 1048 KB Output is correct
2 Correct 16 ms 1484 KB Output is correct
3 Correct 15 ms 1528 KB Output is correct
4 Correct 12 ms 1356 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 12 ms 1356 KB Output is correct
7 Correct 13 ms 1612 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 1808 KB Output is correct
2 Correct 28 ms 2748 KB Output is correct
3 Correct 57 ms 5328 KB Output is correct
4 Correct 46 ms 4556 KB Output is correct
5 Correct 24 ms 2372 KB Output is correct
6 Correct 39 ms 4428 KB Output is correct
7 Correct 46 ms 5144 KB Output is correct
8 Correct 24 ms 2764 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 316 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 66 ms 3396 KB Output is correct
28 Correct 64 ms 5316 KB Output is correct
29 Correct 65 ms 5292 KB Output is correct
30 Correct 63 ms 5316 KB Output is correct
31 Correct 45 ms 4552 KB Output is correct
32 Correct 15 ms 1048 KB Output is correct
33 Correct 16 ms 1484 KB Output is correct
34 Correct 15 ms 1528 KB Output is correct
35 Correct 12 ms 1356 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 12 ms 1356 KB Output is correct
38 Correct 13 ms 1612 KB Output is correct
39 Correct 28 ms 1808 KB Output is correct
40 Correct 28 ms 2748 KB Output is correct
41 Correct 57 ms 5328 KB Output is correct
42 Correct 46 ms 4556 KB Output is correct
43 Correct 24 ms 2372 KB Output is correct
44 Correct 39 ms 4428 KB Output is correct
45 Correct 46 ms 5144 KB Output is correct
46 Correct 24 ms 2764 KB Output is correct
47 Correct 31 ms 2756 KB Output is correct
48 Correct 31 ms 2800 KB Output is correct
49 Correct 63 ms 5316 KB Output is correct
50 Correct 45 ms 4688 KB Output is correct
51 Correct 38 ms 3448 KB Output is correct
52 Correct 47 ms 4680 KB Output is correct
53 Correct 41 ms 4676 KB Output is correct
54 Correct 46 ms 5324 KB Output is correct
55 Correct 54 ms 5324 KB Output is correct