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Submission #444986

# Submission time Handle Problem Language Result Execution time Memory
444986 2021-07-16T07:30:27 Z Nima_Naderi Global Warming (CEOI18_glo) C++14
100 / 100
 254 ms 19652 KB 
//In the name of GOD
//#pragma GCC optimize("O2")
#include<bits/stdc++.h>
using namespace std;

typedef long long ll;
const ll MXN = 1e6 + 10;
const ll INF = 1e18;
ll n, d, lans, ans;
ll A[MXN], B[MXN], M[MXN], Mp[MXN];
ll dp[MXN], mx[MXN], rig[MXN];
vector<ll> Num;
ll GetId(ll x){
	return lower_bound(Num.begin(), Num.end(), x) - Num.begin() + 1;
}
void LIS(ll up, bool f){
	dp[0] = -INF, mx[0] = lans = 0;
	for(int i = 1; i <= up; i ++) dp[i] = INF;
	for(int i = 1; i <= up; i ++){
		if(f) rig[n - i + 1] = lower_bound(dp, dp + lans + 1, Mp[i]) - dp;
		mx[i] = lower_bound(dp, dp + lans + 1, M[i]) - dp;
		if(!f) ans = max(ans, mx[i] + rig[i] - 1);
		lans = max(lans, mx[i]);
		dp[mx[i]] = M[i];
	}
}
int main(){
	ios::sync_with_stdio(0);cin.tie(0); cout.tie(0);
	cin >> n >> d;
	for(int i = 1; i <= n; i ++){
		cin >> A[i], B[i] = A[i] - d;
		Num.push_back(A[i]);
		Num.push_back(B[i]);
		Num.push_back(-A[i]);
		Num.push_back(-B[i]);
	}
	sort(Num.begin(), Num.end());
	Num.resize(unique(Num.begin(), Num.end()) - Num.begin());
	for(int i = 1; i <= n; i ++) M[i] = GetId(-A[n - i + 1]);
	for(int i = 1; i <= n; i ++) Mp[i] = GetId(-B[n - i + 1]);
	LIS(n, 1);
	for(int i = 1; i <= n; i ++) M[i] = GetId(A[i]);
	LIS(n, 0);
	ans = max(ans, lans);
	cout << ans << '\n';
	return 0;
}
// NNG

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 2 ms 460 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 1 ms 448 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 1 ms 460 KB Output is correct
25 Correct 1 ms 460 KB Output is correct
26 Correct 1 ms 460 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 243 ms 19596 KB Output is correct
2 Correct 240 ms 19584 KB Output is correct
3 Correct 241 ms 19528 KB Output is correct
4 Correct 237 ms 19576 KB Output is correct
5 Correct 104 ms 18824 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 5228 KB Output is correct
2 Correct 55 ms 5224 KB Output is correct
3 Correct 55 ms 5280 KB Output is correct
4 Correct 26 ms 4984 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 28 ms 5060 KB Output is correct
7 Correct 46 ms 5232 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 117 ms 9980 KB Output is correct
2 Correct 118 ms 10112 KB Output is correct
3 Correct 254 ms 19576 KB Output is correct
4 Correct 118 ms 18792 KB Output is correct
5 Correct 65 ms 9576 KB Output is correct
6 Correct 124 ms 18164 KB Output is correct
7 Correct 129 ms 18696 KB Output is correct
8 Correct 93 ms 9996 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 2 ms 460 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 1 ms 448 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 1 ms 460 KB Output is correct
25 Correct 1 ms 460 KB Output is correct
26 Correct 1 ms 460 KB Output is correct
27 Correct 243 ms 19596 KB Output is correct
28 Correct 240 ms 19584 KB Output is correct
29 Correct 241 ms 19528 KB Output is correct
30 Correct 237 ms 19576 KB Output is correct
31 Correct 104 ms 18824 KB Output is correct
32 Correct 55 ms 5228 KB Output is correct
33 Correct 55 ms 5224 KB Output is correct
34 Correct 55 ms 5280 KB Output is correct
35 Correct 26 ms 4984 KB Output is correct
36 Correct 0 ms 332 KB Output is correct
37 Correct 28 ms 5060 KB Output is correct
38 Correct 46 ms 5232 KB Output is correct
39 Correct 117 ms 9980 KB Output is correct
40 Correct 118 ms 10112 KB Output is correct
41 Correct 254 ms 19576 KB Output is correct
42 Correct 118 ms 18792 KB Output is correct
43 Correct 65 ms 9576 KB Output is correct
44 Correct 124 ms 18164 KB Output is correct
45 Correct 129 ms 18696 KB Output is correct
46 Correct 93 ms 9996 KB Output is correct
47 Correct 120 ms 10056 KB Output is correct
48 Correct 119 ms 10072 KB Output is correct
49 Correct 254 ms 19652 KB Output is correct
50 Correct 109 ms 18852 KB Output is correct
51 Correct 102 ms 14264 KB Output is correct
52 Correct 134 ms 18856 KB Output is correct
53 Correct 125 ms 18952 KB Output is correct
54 Correct 133 ms 19640 KB Output is correct
55 Correct 200 ms 19576 KB Output is correct