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Submission #525471

# Submission time Handle Problem Language Result Execution time Memory
525471 2022-02-11T18:30:22 Z ammar2000 Global Warming (CEOI18_glo) C++17
100 / 100
 54 ms 8544 KB 
#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define F first
#define S second
#define coy cout<<"YES\n"
#define con cout<<"NO\n"
#define co1 cout<<"-1\n"
#define sc(x) scanf("%lld",&x)
#define all(x) x.begin(),x.end()
#define fast ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
using namespace std;
const int SI=3e5+7;
ll INF=8e18+7;
int dx[] = {1 , -1 , 0 , 0};
int dy[] = {0 , 0 , 1 , -1};
int MOD=1e9+7;
ll n,x,a[SI],pr[SI];
int main()
{
   fast
   cin>>n>>x;
   for (int i=0;i<n;i++)
     cin>>a[i];
   vector <ll> dp(n,INF);
   for (int i=0;i<n;i++)
   {
       ll j=lower_bound(dp.begin(),dp.end(),a[i])-dp.begin();
       dp[j]=a[i];
       pr[i]=j+1;
   }
   ll ans=0;
   vector <ll> dp2(n,INF);
   for (int i=n-1;i>=0;i--)
   {
       ll j=lower_bound(dp2.begin(),dp2.end(),-a[i]+x)-dp2.begin();
       ans=max(ans,pr[i]+j);
       j=lower_bound(dp2.begin(),dp2.end(),-a[i])-dp2.begin();
       dp2[j]=-a[i];
   }
   cout <<ans<<"\n";
   // use scanf not cin
   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 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 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 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 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 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 0 ms 332 KB Output is correct
26 Correct 0 ms 332 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 8544 KB Output is correct
2 Correct 54 ms 8440 KB Output is correct
3 Correct 53 ms 8436 KB Output is correct
4 Correct 51 ms 8388 KB Output is correct
5 Correct 36 ms 7608 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 2360 KB Output is correct
2 Correct 13 ms 2380 KB Output is correct
3 Correct 12 ms 2308 KB Output is correct
4 Correct 12 ms 2124 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 9 ms 2168 KB Output is correct
7 Correct 10 ms 2376 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 4352 KB Output is correct
2 Correct 25 ms 4292 KB Output is correct
3 Correct 48 ms 8416 KB Output is correct
4 Correct 39 ms 7620 KB Output is correct
5 Correct 22 ms 3916 KB Output is correct
6 Correct 31 ms 7340 KB Output is correct
7 Correct 37 ms 8056 KB Output is correct
8 Correct 20 ms 4428 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 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 0 ms 332 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 52 ms 8544 KB Output is correct
28 Correct 54 ms 8440 KB Output is correct
29 Correct 53 ms 8436 KB Output is correct
30 Correct 51 ms 8388 KB Output is correct
31 Correct 36 ms 7608 KB Output is correct
32 Correct 13 ms 2360 KB Output is correct
33 Correct 13 ms 2380 KB Output is correct
34 Correct 12 ms 2308 KB Output is correct
35 Correct 12 ms 2124 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 9 ms 2168 KB Output is correct
38 Correct 10 ms 2376 KB Output is correct
39 Correct 23 ms 4352 KB Output is correct
40 Correct 25 ms 4292 KB Output is correct
41 Correct 48 ms 8416 KB Output is correct
42 Correct 39 ms 7620 KB Output is correct
43 Correct 22 ms 3916 KB Output is correct
44 Correct 31 ms 7340 KB Output is correct
45 Correct 37 ms 8056 KB Output is correct
46 Correct 20 ms 4428 KB Output is correct
47 Correct 26 ms 4292 KB Output is correct
48 Correct 26 ms 4300 KB Output is correct
49 Correct 51 ms 8480 KB Output is correct
50 Correct 37 ms 7620 KB Output is correct
51 Correct 31 ms 5840 KB Output is correct
52 Correct 38 ms 7780 KB Output is correct
53 Correct 31 ms 7736 KB Output is correct
54 Correct 38 ms 8476 KB Output is correct
55 Correct 44 ms 8528 KB Output is correct