Submission #883806

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
883806	2023-12-06T05:47:26 Z	phoenix0423	Global Warming (CEOI18_glo)	C++17	100 / 100	49 ms	7380 KB

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
#define fastio ios::sync_with_stdio(false), cin.tie(0)
#define f first
#define s second
#define pb push_back
#define eb emplace_back
#define int long long 
const int maxn = 1e5 + 5;
const ll INF = 1e18;

signed main(void){
	fastio;
	int n, x;
	cin>>n>>x;
	vector<int> a(n);
	for(int i = 0; i < n; i++) cin>>a[i];
	vector<int> fr(n), bk(n);
	vector<int> len;
	for(int i = 0; i < n; i++){
		int id = lower_bound(len.begin(), len.end(), a[i]) - len.begin();
		if(id == len.size()) len.pb(a[i]);
		else len[id] = a[i];
		fr[i] = id + 1;
	}
	for(int i = 0; i < n; i++) a[i] *= -1;
	len.clear();
	for(int i = n - 1; i >= 0; i--){
		int cur = lower_bound(len.begin(), len.end(), a[i] + x) - len.begin();
		bk[i] = cur + 1;
		int id = lower_bound(len.begin(), len.end(), a[i]) - len.begin();
		if(id == len.size()) len.pb(a[i]);
		else len[id] = a[i];
	}
	int ans = 0;
	for(int i = 0; i < n; i++) ans = max(ans, fr[i] + bk[i] - 1);
	cout<<ans<<"\n";
}

Compilation message

glo.cpp: In function 'int main()':
glo.cpp:24:9: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |   if(id == len.size()) len.pb(a[i]);
      |      ~~~^~~~~~~~~~~~~
glo.cpp:34:9: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |   if(id == len.size()) len.pb(a[i]);
      |      ~~~^~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

#	Verdict	Memory	Grader output
1	Correct	348 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	348 KB	Output is correct
6	Correct	344 KB	Output is correct
7	Correct	348 KB	Output is correct
8	Correct	348 KB	Output is correct
9	Correct	348 KB	Output is correct
10	Correct	344 KB	Output is correct
11	Correct	452 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Memory	Grader output
1	Correct	348 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	348 KB	Output is correct
6	Correct	344 KB	Output is correct
7	Correct	348 KB	Output is correct
8	Correct	348 KB	Output is correct
9	Correct	348 KB	Output is correct
10	Correct	344 KB	Output is correct
11	Correct	452 KB	Output is correct
12	Correct	348 KB	Output is correct
13	Correct	348 KB	Output is correct
14	Correct	348 KB	Output is correct
15	Correct	348 KB	Output is correct
16	Correct	348 KB	Output is correct
17	Correct	344 KB	Output is correct
18	Correct	348 KB	Output is correct

Subtask #3
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	344 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	0 ms	452 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	344 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	456 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct

Subtask #4
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	46 ms	6384 KB	Output is correct
2	Correct	49 ms	6488 KB	Output is correct
3	Correct	46 ms	6236 KB	Output is correct
4	Correct	46 ms	6376 KB	Output is correct
5	Correct	22 ms	6868 KB	Output is correct

Subtask #5
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	11 ms	2312 KB	Output is correct
2	Correct	11 ms	1884 KB	Output is correct
3	Correct	10 ms	2000 KB	Output is correct
4	Correct	6 ms	2140 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	6 ms	2140 KB	Output is correct
7	Correct	9 ms	2004 KB	Output is correct

Subtask #6
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	19 ms	3420 KB	Output is correct
2	Correct	20 ms	3420 KB	Output is correct
3	Correct	38 ms	6388 KB	Output is correct
4	Correct	23 ms	6876 KB	Output is correct
5	Correct	11 ms	3976 KB	Output is correct
6	Correct	19 ms	6876 KB	Output is correct
7	Correct	23 ms	7132 KB	Output is correct
8	Correct	15 ms	3420 KB	Output is correct

Subtask #7
25.0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	344 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	0 ms	452 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	344 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	456 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	46 ms	6384 KB	Output is correct
28	Correct	49 ms	6488 KB	Output is correct
29	Correct	46 ms	6236 KB	Output is correct
30	Correct	46 ms	6376 KB	Output is correct
31	Correct	22 ms	6868 KB	Output is correct
32	Correct	11 ms	2312 KB	Output is correct
33	Correct	11 ms	1884 KB	Output is correct
34	Correct	10 ms	2000 KB	Output is correct
35	Correct	6 ms	2140 KB	Output is correct
36	Correct	0 ms	348 KB	Output is correct
37	Correct	6 ms	2140 KB	Output is correct
38	Correct	9 ms	2004 KB	Output is correct
39	Correct	19 ms	3420 KB	Output is correct
40	Correct	20 ms	3420 KB	Output is correct
41	Correct	38 ms	6388 KB	Output is correct
42	Correct	23 ms	6876 KB	Output is correct
43	Correct	11 ms	3976 KB	Output is correct
44	Correct	19 ms	6876 KB	Output is correct
45	Correct	23 ms	7132 KB	Output is correct
46	Correct	15 ms	3420 KB	Output is correct
47	Correct	22 ms	3420 KB	Output is correct
48	Correct	22 ms	3416 KB	Output is correct
49	Correct	46 ms	6228 KB	Output is correct
50	Correct	23 ms	6876 KB	Output is correct
51	Correct	20 ms	5852 KB	Output is correct
52	Correct	22 ms	7036 KB	Output is correct
53	Correct	19 ms	6864 KB	Output is correct
54	Correct	24 ms	7380 KB	Output is correct
55	Correct	36 ms	6236 KB	Output is correct

Submission #883806

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 10.0 / 10.0

Subtask #3 13.0 / 13.0

Subtask #4 10.0 / 10.0

Subtask #5 20.0 / 20.0

Subtask #6 17.0 / 17.0

Subtask #7 25.0 / 25.0

Subtask #1
5.0 / 5.0

Subtask #2
10.0 / 10.0

Subtask #3
13.0 / 13.0

Subtask #4
10.0 / 10.0

Subtask #5
20.0 / 20.0

Subtask #6
17.0 / 17.0

Subtask #7
25.0 / 25.0