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Submission #978137

# Submission time Handle Problem Language Result Execution time Memory
978137 2024-05-08T22:45:00 Z Isam Global Warming (CEOI18_glo) C++17
100 / 100
 48 ms 5488 KB 
#include<bits/stdc++.h>
using namespace std;

constexpr int sz = 2e5 + 5;
constexpr int inf = 1E9 + 7;
 
int n, x, a[sz], f[sz], f2[sz], num, num2, p[sz], p2[sz], ans;
 
signed main(){
	ios_base::sync_with_stdio(0), cin.tie(0);
	
	cin >> n >> x;
	
	for(register int i = 1; i <= n; ++i) cin >> a[i];
	
	for(register int i = 1; i <= n; ++i){
		
		if(a[i] > f[num]){
			
			f[++num] = a[i];
			
			p[i] = num;
		
		}else{
			
			p[i] = lower_bound(f + 1, f + num + 1, a[i]) - f;
			
			f[p[i]] = a[i];
			
		}
		
	}
	
	f2[0] = inf;
	
	for(register int i = n; i >= 1; --i){
		
		p2[i] = lower_bound(f2 + 1, f2 + num2 + 1, a[i] - x, greater<int>()) - f2;
		
		if(a[i] < f2[num2]){
			
			f2[++num2] = a[i];
			
			p2[i] = num2;
		
		}else{
			
			*lower_bound(f2 + 1, f2 + num2 + 1, a[i], greater<int>()) = a[i];
			
			
		}
		
		
		
	}
	
	
	for(register int i = 1; i <= n; ++i) ans = max(ans, p[i] + p2[i] - 1);
	
	cout << ans << '\n';
	
	
	
	
}

Compilation message

glo.cpp: In function 'int main()':
glo.cpp:14:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   14 |  for(register int i = 1; i <= n; ++i) cin >> a[i];
      |                   ^
glo.cpp:16:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   16 |  for(register int i = 1; i <= n; ++i){
      |                   ^
glo.cpp:36:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   36 |  for(register int i = n; i >= 1; --i){
      |                   ^
glo.cpp:58:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   58 |  for(register int i = 1; i <= n; ++i) ans = max(ans, p[i] + p2[i] - 1);
      |                   ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 408 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 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 348 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 408 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 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 348 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 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 408 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 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 348 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 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 500 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 544 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 344 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 2644 KB Output is correct
2 Correct 48 ms 2728 KB Output is correct
3 Correct 48 ms 2640 KB Output is correct
4 Correct 45 ms 2752 KB Output is correct
5 Correct 20 ms 3420 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 860 KB Output is correct
2 Correct 12 ms 1372 KB Output is correct
3 Correct 13 ms 1592 KB Output is correct
4 Correct 5 ms 1372 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 5 ms 1372 KB Output is correct
7 Correct 9 ms 1624 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 1624 KB Output is correct
2 Correct 19 ms 2396 KB Output is correct
3 Correct 38 ms 4696 KB Output is correct
4 Correct 19 ms 4668 KB Output is correct
5 Correct 12 ms 2396 KB Output is correct
6 Correct 16 ms 4568 KB Output is correct
7 Correct 20 ms 5212 KB Output is correct
8 Correct 15 ms 2396 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 408 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 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 348 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 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 500 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 544 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 44 ms 2644 KB Output is correct
28 Correct 48 ms 2728 KB Output is correct
29 Correct 48 ms 2640 KB Output is correct
30 Correct 45 ms 2752 KB Output is correct
31 Correct 20 ms 3420 KB Output is correct
32 Correct 11 ms 860 KB Output is correct
33 Correct 12 ms 1372 KB Output is correct
34 Correct 13 ms 1592 KB Output is correct
35 Correct 5 ms 1372 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 5 ms 1372 KB Output is correct
38 Correct 9 ms 1624 KB Output is correct
39 Correct 19 ms 1624 KB Output is correct
40 Correct 19 ms 2396 KB Output is correct
41 Correct 38 ms 4696 KB Output is correct
42 Correct 19 ms 4668 KB Output is correct
43 Correct 12 ms 2396 KB Output is correct
44 Correct 16 ms 4568 KB Output is correct
45 Correct 20 ms 5212 KB Output is correct
46 Correct 15 ms 2396 KB Output is correct
47 Correct 22 ms 2392 KB Output is correct
48 Correct 22 ms 2396 KB Output is correct
49 Correct 45 ms 4692 KB Output is correct
50 Correct 22 ms 4692 KB Output is correct
51 Correct 17 ms 3676 KB Output is correct
52 Correct 20 ms 4692 KB Output is correct
53 Correct 17 ms 4688 KB Output is correct
54 Correct 21 ms 5488 KB Output is correct
55 Correct 35 ms 4716 KB Output is correct