#pragma once
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef double db;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<ld, ld> pld;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ld> vld;
typedef vector<pii> vpii;
typedef vector<pll> vpll;
typedef vector<pld> vpld;
typedef vector<vi> vvi;
typedef tuple<ll, ll, ll> t3;
typedef tuple<ll, ll, ll, ll> t4;
template<typename T> using pq = priority_queue<T>;
template<typename T> using pqg = priority_queue<T, vector<T>, greater<T>>;
#define sz(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define eb emplace_back
#define st first
#define nd second
#define lb lower_bound
#define ub upper_bound
#define all(x) (x).begin(), (x).end()
#define ins insert
template<typename T> bool ckmin(T &a, const T &b) { return b < a ? a = b, 1 : 0; }
template<typename T> bool ckmax(T &a, const T &b) { return a < b ? a = b, 1 : 0; }
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int MOD = 1e9 + 7;
const int INF = 0x3fffffff;
const ll LINF = 0x1fffffffffffffff;
const char nl = '\n';
const int MX = 2e5 + 3;
int a[MX], dp[MX];
vector<int> v1, v2;
void solve() {
int n, x; cin >> n >> x;
for (int i = 1; i <= n; ++i) cin >> a[i];
for (int i = 1; i <= n; ++i) {
auto it = lower_bound(all(v1), a[i]);
dp[i] = it-v1.begin()+1;
if (it == v1.end()) v1.eb(a[i]);
else *it = a[i];
}
int ans = 0;
for (int i = n; i >= 1; --i) {
auto it = lower_bound(all(v2), -a[i]);
ckmax(ans, dp[i] + (int)(it-v2.begin()));
a[i] += x;
auto it2 = lower_bound(all(v2), -a[i]);
if (it2 == v2.end()) v2.eb(-a[i]);
else *it2 = -a[i];
}
cout << ans << nl;
}
int main(int argc, char* argv[]) {
ios_base::sync_with_stdio(0); cin.tie(NULL);
int t = 1;
// cin >> t;
while (t--) { solve(); }
return 0;
}
Compilation message
glo.cpp:1:9: warning: #pragma once in main file
1 | #pragma once
| ^~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
472 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
472 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
472 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
472 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
344 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 |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
472 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
472 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
344 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 |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
348 KB |
Output is correct |
21 |
Correct |
0 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 |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
48 ms |
1884 KB |
Output is correct |
2 |
Correct |
44 ms |
1876 KB |
Output is correct |
3 |
Correct |
44 ms |
2024 KB |
Output is correct |
4 |
Correct |
43 ms |
1880 KB |
Output is correct |
5 |
Correct |
23 ms |
3316 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
12 ms |
860 KB |
Output is correct |
2 |
Correct |
11 ms |
860 KB |
Output is correct |
3 |
Correct |
10 ms |
756 KB |
Output is correct |
4 |
Correct |
7 ms |
1116 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
6 ms |
1372 KB |
Output is correct |
7 |
Correct |
8 ms |
1364 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
18 ms |
1116 KB |
Output is correct |
2 |
Correct |
18 ms |
2136 KB |
Output is correct |
3 |
Correct |
37 ms |
3768 KB |
Output is correct |
4 |
Correct |
22 ms |
4316 KB |
Output is correct |
5 |
Correct |
11 ms |
2272 KB |
Output is correct |
6 |
Correct |
19 ms |
4048 KB |
Output is correct |
7 |
Correct |
23 ms |
4828 KB |
Output is correct |
8 |
Correct |
15 ms |
2040 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
472 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
472 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
344 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 |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
348 KB |
Output is correct |
21 |
Correct |
0 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 |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
48 ms |
1884 KB |
Output is correct |
28 |
Correct |
44 ms |
1876 KB |
Output is correct |
29 |
Correct |
44 ms |
2024 KB |
Output is correct |
30 |
Correct |
43 ms |
1880 KB |
Output is correct |
31 |
Correct |
23 ms |
3316 KB |
Output is correct |
32 |
Correct |
12 ms |
860 KB |
Output is correct |
33 |
Correct |
11 ms |
860 KB |
Output is correct |
34 |
Correct |
10 ms |
756 KB |
Output is correct |
35 |
Correct |
7 ms |
1116 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
6 ms |
1372 KB |
Output is correct |
38 |
Correct |
8 ms |
1364 KB |
Output is correct |
39 |
Correct |
18 ms |
1116 KB |
Output is correct |
40 |
Correct |
18 ms |
2136 KB |
Output is correct |
41 |
Correct |
37 ms |
3768 KB |
Output is correct |
42 |
Correct |
22 ms |
4316 KB |
Output is correct |
43 |
Correct |
11 ms |
2272 KB |
Output is correct |
44 |
Correct |
19 ms |
4048 KB |
Output is correct |
45 |
Correct |
23 ms |
4828 KB |
Output is correct |
46 |
Correct |
15 ms |
2040 KB |
Output is correct |
47 |
Correct |
22 ms |
2120 KB |
Output is correct |
48 |
Correct |
22 ms |
2200 KB |
Output is correct |
49 |
Correct |
48 ms |
4176 KB |
Output is correct |
50 |
Correct |
23 ms |
4316 KB |
Output is correct |
51 |
Correct |
20 ms |
3548 KB |
Output is correct |
52 |
Correct |
28 ms |
4308 KB |
Output is correct |
53 |
Correct |
21 ms |
4304 KB |
Output is correct |
54 |
Correct |
25 ms |
5072 KB |
Output is correct |
55 |
Correct |
34 ms |
3920 KB |
Output is correct |