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Submission #580561

# Submission time Handle Problem Language Result Execution time Memory
580561 2022-06-21T12:36:26 Z talant117408 Global Warming (CEOI18_glo) C++17
100 / 100
 58 ms 2768 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;

#define long                unsigned long 
#define pb                  push_back
#define mp                  make_pair
#define all(v)              (v).begin(),(v).end()
#define rall(v)             (v).rbegin(),(v).rend()
#define lb                  lower_bound
#define ub                  upper_bound
#define sz(v)               int((v).size())
#define do_not_disturb      ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define endl                '\n'

void solve() {
    int n, x;
    const int INF = 2e9+2e6;
    cin >> n >> x;
    vector <int> v(n);
    for (auto &to : v) cin >> to;
    vector <int> dp(n, INF);
    vector <int> pref(n);
    int ans = 0;
    for (int i = 0; i < n; i++) {
        int it = lb(all(dp), v[i])-dp.begin();
        ans = max(ans, it+1);
        dp[it] = v[i];
        pref[i] = it+1;
    }
    fill(all(dp), INF);
    for (int i = n-1; i >= 0; i--) {
        int it = lb(all(dp), -v[i]+x)-dp.begin();
        ans = max(ans, pref[i]+it);
        it = lb(all(dp), -v[i])-dp.begin();
        dp[it] = -v[i];
    }
    cout << ans;
}

int main() {
    do_not_disturb
    
    int t = 1;
    //~ cin >> t;
    while (t--) {
        solve();
    }
    
    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 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 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 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 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 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 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 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 57 ms 2640 KB Output is correct
2 Correct 58 ms 2644 KB Output is correct
3 Correct 54 ms 2628 KB Output is correct
4 Correct 56 ms 2676 KB Output is correct
5 Correct 40 ms 2768 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 852 KB Output is correct
2 Correct 14 ms 852 KB Output is correct
3 Correct 15 ms 852 KB Output is correct
4 Correct 12 ms 912 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 12 ms 852 KB Output is correct
7 Correct 11 ms 852 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 1500 KB Output is correct
2 Correct 26 ms 1492 KB Output is correct
3 Correct 49 ms 2660 KB Output is correct
4 Correct 41 ms 2672 KB Output is correct
5 Correct 23 ms 1492 KB Output is correct
6 Correct 36 ms 2544 KB Output is correct
7 Correct 36 ms 2516 KB Output is correct
8 Correct 22 ms 1492 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 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 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 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 57 ms 2640 KB Output is correct
28 Correct 58 ms 2644 KB Output is correct
29 Correct 54 ms 2628 KB Output is correct
30 Correct 56 ms 2676 KB Output is correct
31 Correct 40 ms 2768 KB Output is correct
32 Correct 14 ms 852 KB Output is correct
33 Correct 14 ms 852 KB Output is correct
34 Correct 15 ms 852 KB Output is correct
35 Correct 12 ms 912 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 12 ms 852 KB Output is correct
38 Correct 11 ms 852 KB Output is correct
39 Correct 29 ms 1500 KB Output is correct
40 Correct 26 ms 1492 KB Output is correct
41 Correct 49 ms 2660 KB Output is correct
42 Correct 41 ms 2672 KB Output is correct
43 Correct 23 ms 1492 KB Output is correct
44 Correct 36 ms 2544 KB Output is correct
45 Correct 36 ms 2516 KB Output is correct
46 Correct 22 ms 1492 KB Output is correct
47 Correct 29 ms 1488 KB Output is correct
48 Correct 27 ms 1492 KB Output is correct
49 Correct 54 ms 2644 KB Output is correct
50 Correct 37 ms 2644 KB Output is correct
51 Correct 35 ms 2004 KB Output is correct
52 Correct 45 ms 2656 KB Output is correct
53 Correct 37 ms 2648 KB Output is correct
54 Correct 39 ms 2644 KB Output is correct
55 Correct 41 ms 2652 KB Output is correct