oj.uz

Submission #133848

# Submission time Handle Problem Language Result Execution time Memory
133848 2019-07-21T14:17:09 Z miguel Global Warming (CEOI18_glo) C++14
100 / 100
 71 ms 7792 KB 
#include<bits/stdc++.h>
using namespace std;
#define rc(x) return cout<<x<<endl,0
#define pb push_back
#define dbg(x) cout << #x << '=' << x << '\n';
#define ll long long
#define int ll
#define sz size()
#define x first
#define y second
#define pi pair <int, int>
#define pii pair <pi, pi>
#define vi vector <int>
const ll nmax=5e4+2;
const ll mod = 998244353;
int n, x, s[200001], a[200001];
vector <int> dp;

int32_t main(){
    ios_base :: sync_with_stdio(0); cin.tie(); cout.tie();
    cin>>n>>x;
    //dp.pb(0);
    for(int i=1; i<=n; i++){
        cin>>a[i];
        auto it=lower_bound(dp.begin(), dp.end(), a[i]);
        if(it==dp.end()){
            dp.pb(a[i]);
            s[i]=dp.size();
        }
        else{
            dp[it-dp.begin()]=a[i];
            s[i]=it-dp.begin()+1;
        }
    }
   // for(int i: dp) cout<<i<<" "; cout<<endl;
    //for(int i=1; i<=n; i++) cout<<s[i]<<" ";
    int ans=dp.size();
    vi lsd;
    for(int i=n; i>=1; --i){
        auto it=lower_bound(lsd.begin(), lsd.end(), -a[i]);
        if(it==lsd.end()) ans=max(ans, s[i]+(int)lsd.size());
        else ans=max(ans, s[i]+(it-lsd.begin()));

        auto it1=lower_bound(lsd.begin(), lsd.end(), -a[i]-x);
        if(it1==lsd.end()) lsd.pb(-a[i]-x);
        else lsd[it1-lsd.begin()]=-a[i]-x;
    }
    cout<<ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 71 ms 5380 KB Output is correct
2 Correct 71 ms 5624 KB Output is correct
3 Correct 71 ms 5496 KB Output is correct
4 Correct 71 ms 5460 KB Output is correct
5 Correct 45 ms 6888 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 1716 KB Output is correct
2 Correct 18 ms 1656 KB Output is correct
3 Correct 18 ms 1580 KB Output is correct
4 Correct 12 ms 2040 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 13 ms 2040 KB Output is correct
7 Correct 16 ms 1656 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 2856 KB Output is correct
2 Correct 31 ms 2948 KB Output is correct
3 Correct 62 ms 5448 KB Output is correct
4 Correct 47 ms 6988 KB Output is correct
5 Correct 24 ms 3700 KB Output is correct
6 Correct 38 ms 6792 KB Output is correct
7 Correct 48 ms 7536 KB Output is correct
8 Correct 28 ms 2936 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 71 ms 5380 KB Output is correct
28 Correct 71 ms 5624 KB Output is correct
29 Correct 71 ms 5496 KB Output is correct
30 Correct 71 ms 5460 KB Output is correct
31 Correct 45 ms 6888 KB Output is correct
32 Correct 18 ms 1716 KB Output is correct
33 Correct 18 ms 1656 KB Output is correct
34 Correct 18 ms 1580 KB Output is correct
35 Correct 12 ms 2040 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 13 ms 2040 KB Output is correct
38 Correct 16 ms 1656 KB Output is correct
39 Correct 32 ms 2856 KB Output is correct
40 Correct 31 ms 2948 KB Output is correct
41 Correct 62 ms 5448 KB Output is correct
42 Correct 47 ms 6988 KB Output is correct
43 Correct 24 ms 3700 KB Output is correct
44 Correct 38 ms 6792 KB Output is correct
45 Correct 48 ms 7536 KB Output is correct
46 Correct 28 ms 2936 KB Output is correct
47 Correct 35 ms 2940 KB Output is correct
48 Correct 35 ms 2908 KB Output is correct
49 Correct 71 ms 5456 KB Output is correct
50 Correct 45 ms 6896 KB Output is correct
51 Correct 40 ms 5868 KB Output is correct
52 Correct 50 ms 7032 KB Output is correct
53 Correct 40 ms 7020 KB Output is correct
54 Correct 49 ms 7792 KB Output is correct
55 Correct 59 ms 5368 KB Output is correct