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Submission #413094

# Submission time Handle Problem Language Result Execution time Memory
413094 2021-05-28T08:37:11 Z hhh07 Global Warming (CEOI18_glo) C++14
100 / 100
 68 ms 6928 KB 
#include <iostream>
#include <algorithm>
#include <cmath>
#include <map>
#include <climits>
#include <vector>
#include <queue>
#include <utility>
#include <iomanip>
#include <cstring>
#include <sstream>
#include <string>
#include <stack>

using namespace std;

typedef long long ll;
typedef vector<ll> vi;
typedef pair<ll, ll> ii;

int main()
{
    ios_base::sync_with_stdio(false); cin.tie(0);
    ll n, x;
    cin >> n >> x;
    ll t[n];
    for (int i = 0; i < n; i++)
        cin >> t[i];

    vi dp(n, INT_MAX), pref(n);
    ll res = 0;
    for (int i = 0; i < n; i++){
        ll j = lower_bound(dp.begin(), dp.end(), t[i]) - dp.begin();
        
        dp[j] = t[i];
        pref[i] = j + 1;
        res = max(res, j + 1);
    }

    dp.assign(n, INT_MAX);

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

        res = max(res, pref[i] + j);

        j = lower_bound(dp.begin(), dp.end(), -t[i]) - dp.begin();
        dp[j] = -t[i];

    }


    cout << res << endl;
}

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 204 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 204 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 204 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 204 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 204 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 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 312 KB Output is correct
13 Correct 1 ms 320 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 204 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 204 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 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 312 KB Output is correct
13 Correct 1 ms 320 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 324 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 316 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 6924 KB Output is correct
2 Correct 68 ms 6928 KB Output is correct
3 Correct 66 ms 6852 KB Output is correct
4 Correct 67 ms 6928 KB Output is correct
5 Correct 46 ms 6084 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 1868 KB Output is correct
2 Correct 16 ms 1868 KB Output is correct
3 Correct 16 ms 1952 KB Output is correct
4 Correct 14 ms 1788 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 12 ms 1736 KB Output is correct
7 Correct 13 ms 1996 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 3532 KB Output is correct
2 Correct 34 ms 3624 KB Output is correct
3 Correct 58 ms 6832 KB Output is correct
4 Correct 48 ms 6160 KB Output is correct
5 Correct 24 ms 3148 KB Output is correct
6 Correct 47 ms 5872 KB Output is correct
7 Correct 45 ms 6532 KB Output is correct
8 Correct 25 ms 3636 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 204 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 204 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 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 312 KB Output is correct
13 Correct 1 ms 320 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 324 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 316 KB Output is correct
27 Correct 63 ms 6924 KB Output is correct
28 Correct 68 ms 6928 KB Output is correct
29 Correct 66 ms 6852 KB Output is correct
30 Correct 67 ms 6928 KB Output is correct
31 Correct 46 ms 6084 KB Output is correct
32 Correct 16 ms 1868 KB Output is correct
33 Correct 16 ms 1868 KB Output is correct
34 Correct 16 ms 1952 KB Output is correct
35 Correct 14 ms 1788 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 12 ms 1736 KB Output is correct
38 Correct 13 ms 1996 KB Output is correct
39 Correct 34 ms 3532 KB Output is correct
40 Correct 34 ms 3624 KB Output is correct
41 Correct 58 ms 6832 KB Output is correct
42 Correct 48 ms 6160 KB Output is correct
43 Correct 24 ms 3148 KB Output is correct
44 Correct 47 ms 5872 KB Output is correct
45 Correct 45 ms 6532 KB Output is correct
46 Correct 25 ms 3636 KB Output is correct
47 Correct 30 ms 3604 KB Output is correct
48 Correct 31 ms 3636 KB Output is correct
49 Correct 63 ms 6848 KB Output is correct
50 Correct 46 ms 6084 KB Output is correct
51 Correct 38 ms 4684 KB Output is correct
52 Correct 56 ms 6212 KB Output is correct
53 Correct 42 ms 6212 KB Output is correct
54 Correct 59 ms 6852 KB Output is correct
55 Correct 52 ms 6860 KB Output is correct