Submission #259878

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
259878	2020-08-08T18:23:21 Z	peuch	Global Warming (CEOI18_glo)	C++17	28 / 100	2000 ms	1912 KB

glo

#include<bits/stdc++.h>
using namespace std;

const int MAXN = 2e5 + 10;
const int INF = 2e9 + 7;

int n, x;
int v[MAXN];
int dp[MAXN];
int ans;

void bt(int cur, int sum);

int main(){
	scanf("%d %d", &n, &x);
	for(int i = 1; i <= n; i++)
		scanf("%d", &v[i]);
	for(int i = n; i > 0; i--){
		for(int j = 1; j <= n; j++)
			dp[j] = INF;
		for(int j = 1; j <= n; j++){
			int k = lower_bound(dp, dp + 1 + n, v[j]) - dp;
			dp[k] = v[j];
			ans = max(ans, k);
		}
		v[i] += x;
	}
	printf("%d\n", ans);
}

void bt(int cur, int sum){
	for(int i = 1; i <= n; i++)
		dp[i] = INF;
	for(int i = 1; i <= n; i++){
		int k = lower_bound(dp, dp + 1 + n, v[i]) - dp;
		dp[k] = v[i];
		ans = max(ans, k);
	}
	if(cur == n) return;
	v[cur + 1] += sum;
	bt(cur + 1, sum);
	v[cur + 1] -= sum;
}

Compilation message

glo.cpp: In function 'int main()':
glo.cpp:15:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &x);
  ~~~~~^~~~~~~~~~~~~~~~~
glo.cpp:17:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &v[i]);
   ~~~~~^~~~~~~~~~~~~

Subtask #1

5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	256 KB	Output is correct
2	Correct	0 ms	256 KB	Output is correct
3	Correct	0 ms	256 KB	Output is correct
4	Correct	0 ms	256 KB	Output is correct
5	Correct	0 ms	256 KB	Output is correct
6	Correct	0 ms	256 KB	Output is correct
7	Correct	0 ms	256 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	0 ms	256 KB	Output is correct
11	Correct	0 ms	384 KB	Output is correct

Subtask #2

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	256 KB	Output is correct
2	Correct	0 ms	256 KB	Output is correct
3	Correct	0 ms	256 KB	Output is correct
4	Correct	0 ms	256 KB	Output is correct
5	Correct	0 ms	256 KB	Output is correct
6	Correct	0 ms	256 KB	Output is correct
7	Correct	0 ms	256 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	0 ms	256 KB	Output is correct
11	Correct	0 ms	384 KB	Output is correct
12	Correct	0 ms	384 KB	Output is correct
13	Correct	0 ms	256 KB	Output is correct
14	Correct	0 ms	256 KB	Output is correct
15	Correct	0 ms	256 KB	Output is correct
16	Correct	0 ms	256 KB	Output is correct
17	Correct	0 ms	256 KB	Output is correct
18	Correct	0 ms	256 KB	Output is correct

Subtask #3

13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	256 KB	Output is correct
2	Correct	0 ms	256 KB	Output is correct
3	Correct	0 ms	256 KB	Output is correct
4	Correct	0 ms	256 KB	Output is correct
5	Correct	0 ms	256 KB	Output is correct
6	Correct	0 ms	256 KB	Output is correct
7	Correct	0 ms	256 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	0 ms	256 KB	Output is correct
11	Correct	0 ms	384 KB	Output is correct
12	Correct	0 ms	384 KB	Output is correct
13	Correct	0 ms	256 KB	Output is correct
14	Correct	0 ms	256 KB	Output is correct
15	Correct	0 ms	256 KB	Output is correct
16	Correct	0 ms	256 KB	Output is correct
17	Correct	0 ms	256 KB	Output is correct
18	Correct	0 ms	256 KB	Output is correct
19	Correct	29 ms	384 KB	Output is correct
20	Correct	27 ms	392 KB	Output is correct
21	Correct	27 ms	512 KB	Output is correct
22	Correct	28 ms	384 KB	Output is correct
23	Correct	23 ms	384 KB	Output is correct
24	Correct	33 ms	384 KB	Output is correct
25	Correct	21 ms	384 KB	Output is correct
26	Correct	32 ms	384 KB	Output is correct

Subtask #4

0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	2074 ms	1912 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #5

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	2090 ms	640 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #6

0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	2084 ms	1144 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #7

0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	256 KB	Output is correct
2	Correct	0 ms	256 KB	Output is correct
3	Correct	0 ms	256 KB	Output is correct
4	Correct	0 ms	256 KB	Output is correct
5	Correct	0 ms	256 KB	Output is correct
6	Correct	0 ms	256 KB	Output is correct
7	Correct	0 ms	256 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	0 ms	256 KB	Output is correct
11	Correct	0 ms	384 KB	Output is correct
12	Correct	0 ms	384 KB	Output is correct
13	Correct	0 ms	256 KB	Output is correct
14	Correct	0 ms	256 KB	Output is correct
15	Correct	0 ms	256 KB	Output is correct
16	Correct	0 ms	256 KB	Output is correct
17	Correct	0 ms	256 KB	Output is correct
18	Correct	0 ms	256 KB	Output is correct
19	Correct	29 ms	384 KB	Output is correct
20	Correct	27 ms	392 KB	Output is correct
21	Correct	27 ms	512 KB	Output is correct
22	Correct	28 ms	384 KB	Output is correct
23	Correct	23 ms	384 KB	Output is correct
24	Correct	33 ms	384 KB	Output is correct
25	Correct	21 ms	384 KB	Output is correct
26	Correct	32 ms	384 KB	Output is correct
27	Execution timed out	2074 ms	1912 KB	Time limit exceeded
28	Halted	0 ms	0 KB	-