Submission #260703

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
260703	2020-08-10T18:31:47 Z	bigg	Global Warming (CEOI18_glo)	C++14	100 / 100	85 ms	7800 KB

glo

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MAXN = 2e5 + 10;
const ll INF =1e18;
ll dp[MAXN], v[MAXN], neg[MAXN];
int ans1[MAXN];
int main(){
	int n;
	ll x;
	scanf("%d %lld", &n, &x);
	for(int i = 1; i <= n; i++) scanf("%lld", &v[i]), dp[i] = INF, neg[i] = -v[i];
	//dp[0] = INF;
	int ans = -1;
	for(int i = 0; i <= n; i++) dp[i] = INF;
		for(int i = 1; i <= n; i++){
			int it1 = lower_bound(dp, dp + n, v[i]) - dp;
			dp[it1] = v[i];
			ans1[i] = it1 +1;
			ans = max(ans, it1 + 1);
	}
	
	for(int i = 0; i <= n; i++) dp[i] = INF;
	for(int i = n; i; i--){
		int it1 = lower_bound(dp, dp + n, neg[i] +x) - dp;
		int it2 = lower_bound(dp, dp + n, neg[i]) - dp;
		dp[it2] = neg[i];
		ans = max(ans, it1 + ans1[i]);
		//printf("%d\n", it1 + ans1[i]);
	}
	
	
	printf("%d\n",ans );
}

Compilation message

glo.cpp: In function 'int main()':
glo.cpp:11:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %lld", &n, &x);
  ~~~~~^~~~~~~~~~~~~~~~~~~
glo.cpp:12:63: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i = 1; i <= n; i++) scanf("%lld", &v[i]), dp[i] = INF, neg[i] = -v[i];
                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~

Subtask #1

5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	0 ms	384 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	0 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct

Subtask #2

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	0 ms	384 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	0 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	0 ms	384 KB	Output is correct
13	Correct	0 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	0 ms	384 KB	Output is correct
16	Correct	1 ms	384 KB	Output is correct
17	Correct	0 ms	384 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct

Subtask #3

13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	0 ms	384 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	0 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	0 ms	384 KB	Output is correct
13	Correct	0 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	0 ms	384 KB	Output is correct
16	Correct	1 ms	384 KB	Output is correct
17	Correct	0 ms	384 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct
19	Correct	1 ms	384 KB	Output is correct
20	Correct	1 ms	384 KB	Output is correct
21	Correct	1 ms	384 KB	Output is correct
22	Correct	1 ms	384 KB	Output is correct
23	Correct	1 ms	384 KB	Output is correct
24	Correct	1 ms	384 KB	Output is correct
25	Correct	1 ms	384 KB	Output is correct
26	Correct	1 ms	384 KB	Output is correct

Subtask #4

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	85 ms	7672 KB	Output is correct
2	Correct	78 ms	7672 KB	Output is correct
3	Correct	77 ms	7672 KB	Output is correct
4	Correct	78 ms	7672 KB	Output is correct
5	Correct	58 ms	6904 KB	Output is correct

Subtask #5

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	22 ms	2176 KB	Output is correct
2	Correct	22 ms	2176 KB	Output is correct
3	Correct	22 ms	2176 KB	Output is correct
4	Correct	16 ms	2048 KB	Output is correct
5	Correct	0 ms	384 KB	Output is correct
6	Correct	15 ms	2048 KB	Output is correct
7	Correct	15 ms	2176 KB	Output is correct

Subtask #6

17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	35 ms	3960 KB	Output is correct
2	Correct	35 ms	4088 KB	Output is correct
3	Correct	71 ms	7672 KB	Output is correct
4	Correct	59 ms	6904 KB	Output is correct
5	Correct	29 ms	3584 KB	Output is correct
6	Correct	49 ms	6648 KB	Output is correct
7	Correct	55 ms	7416 KB	Output is correct
8	Correct	33 ms	4096 KB	Output is correct

Subtask #7

25.0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	0 ms	384 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	0 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	0 ms	384 KB	Output is correct
13	Correct	0 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	0 ms	384 KB	Output is correct
16	Correct	1 ms	384 KB	Output is correct
17	Correct	0 ms	384 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct
19	Correct	1 ms	384 KB	Output is correct
20	Correct	1 ms	384 KB	Output is correct
21	Correct	1 ms	384 KB	Output is correct
22	Correct	1 ms	384 KB	Output is correct
23	Correct	1 ms	384 KB	Output is correct
24	Correct	1 ms	384 KB	Output is correct
25	Correct	1 ms	384 KB	Output is correct
26	Correct	1 ms	384 KB	Output is correct
27	Correct	85 ms	7672 KB	Output is correct
28	Correct	78 ms	7672 KB	Output is correct
29	Correct	77 ms	7672 KB	Output is correct
30	Correct	78 ms	7672 KB	Output is correct
31	Correct	58 ms	6904 KB	Output is correct
32	Correct	22 ms	2176 KB	Output is correct
33	Correct	22 ms	2176 KB	Output is correct
34	Correct	22 ms	2176 KB	Output is correct
35	Correct	16 ms	2048 KB	Output is correct
36	Correct	0 ms	384 KB	Output is correct
37	Correct	15 ms	2048 KB	Output is correct
38	Correct	15 ms	2176 KB	Output is correct
39	Correct	35 ms	3960 KB	Output is correct
40	Correct	35 ms	4088 KB	Output is correct
41	Correct	71 ms	7672 KB	Output is correct
42	Correct	59 ms	6904 KB	Output is correct
43	Correct	29 ms	3584 KB	Output is correct
44	Correct	49 ms	6648 KB	Output is correct
45	Correct	55 ms	7416 KB	Output is correct
46	Correct	33 ms	4096 KB	Output is correct
47	Correct	38 ms	4024 KB	Output is correct
48	Correct	37 ms	3960 KB	Output is correct
49	Correct	82 ms	7672 KB	Output is correct
50	Correct	58 ms	6904 KB	Output is correct
51	Correct	44 ms	5240 KB	Output is correct
52	Correct	59 ms	7032 KB	Output is correct
53	Correct	50 ms	7032 KB	Output is correct
54	Correct	59 ms	7800 KB	Output is correct
55	Correct	63 ms	7800 KB	Output is correct