#include <bits/stdc++.h>
using namespace std;
#define pii pair<int, int>
#define x first
#define y second
const int N = 2e5+5;
int n, x, A[N], pos[N];
int ret[N], t[N<<1];
void update(int x, int v) {
for(t[x+=n] = v; x != 1; x >>= 1) t[x>>1] = max(t[x], t[x^1]);
}
int query(int r) {
int l = 0, mx = 0;
for(l += n, r += n+1; l < r; l >>= 1, r >>= 1) {
if(l & 1) mx = max(mx, t[l++]);
if(r & 1) mx = max(mx, t[--r]);
}
return mx;
}
int main() {
scanf("%d %d", &n, &x);
vector<int> V, Z;
vector<pii> ret;
for(int i = 1; i <= n; ++i) scanf("%d", A+i), Z.emplace_back(A[i]), ret.emplace_back(A[i], i);
sort(ret.begin(), ret.end()), sort(Z.begin(), Z.end());
for(int i = 0; i < n; ++i) pos[ret[i].y] = i;
for(int i = 1; i <= n; ++i) {
auto it = lower_bound(V.begin(), V.end(), A[i]);
if(it == V.end()) V.emplace_back(A[i]), it = V.end(), it--;
else *it = A[i];
update(pos[i], it - V.begin() + 1);
}
V.clear();
int mx = 0;
for(int i = n; i; --i) {
update(pos[i], 0);
auto it = lower_bound(V.begin(), V.end(), -A[i]);
if(it == V.end()) V.emplace_back(-A[i]), it = V.end(), it--;
else *it = -A[i];
int z = it - V.begin() + 1;
mx = max(mx, z + query(lower_bound(Z.begin(), Z.end(), A[i]+x) - Z.begin()-1));
}
printf("%d\n", mx);
}
Compilation message
glo.cpp: In function 'int main()':
glo.cpp:27:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d", &n, &x);
~~~~~^~~~~~~~~~~~~~~~~
glo.cpp:30:71: 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("%d", A+i), Z.emplace_back(A[i]), ret.emplace_back(A[i], i);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
492 KB |
Output is correct |
| 3 |
Correct |
3 ms |
492 KB |
Output is correct |
| 4 |
Correct |
3 ms |
492 KB |
Output is correct |
| 5 |
Correct |
2 ms |
492 KB |
Output is correct |
| 6 |
Correct |
2 ms |
524 KB |
Output is correct |
| 7 |
Correct |
3 ms |
524 KB |
Output is correct |
| 8 |
Correct |
2 ms |
524 KB |
Output is correct |
| 9 |
Correct |
3 ms |
528 KB |
Output is correct |
| 10 |
Correct |
3 ms |
572 KB |
Output is correct |
| 11 |
Correct |
4 ms |
572 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
492 KB |
Output is correct |
| 3 |
Correct |
3 ms |
492 KB |
Output is correct |
| 4 |
Correct |
3 ms |
492 KB |
Output is correct |
| 5 |
Correct |
2 ms |
492 KB |
Output is correct |
| 6 |
Correct |
2 ms |
524 KB |
Output is correct |
| 7 |
Correct |
3 ms |
524 KB |
Output is correct |
| 8 |
Correct |
2 ms |
524 KB |
Output is correct |
| 9 |
Correct |
3 ms |
528 KB |
Output is correct |
| 10 |
Correct |
3 ms |
572 KB |
Output is correct |
| 11 |
Correct |
4 ms |
572 KB |
Output is correct |
| 12 |
Correct |
3 ms |
576 KB |
Output is correct |
| 13 |
Correct |
2 ms |
576 KB |
Output is correct |
| 14 |
Correct |
2 ms |
700 KB |
Output is correct |
| 15 |
Correct |
2 ms |
712 KB |
Output is correct |
| 16 |
Correct |
3 ms |
712 KB |
Output is correct |
| 17 |
Correct |
3 ms |
712 KB |
Output is correct |
| 18 |
Correct |
3 ms |
712 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
492 KB |
Output is correct |
| 3 |
Correct |
3 ms |
492 KB |
Output is correct |
| 4 |
Correct |
3 ms |
492 KB |
Output is correct |
| 5 |
Correct |
2 ms |
492 KB |
Output is correct |
| 6 |
Correct |
2 ms |
524 KB |
Output is correct |
| 7 |
Correct |
3 ms |
524 KB |
Output is correct |
| 8 |
Correct |
2 ms |
524 KB |
Output is correct |
| 9 |
Correct |
3 ms |
528 KB |
Output is correct |
| 10 |
Correct |
3 ms |
572 KB |
Output is correct |
| 11 |
Correct |
4 ms |
572 KB |
Output is correct |
| 12 |
Correct |
3 ms |
576 KB |
Output is correct |
| 13 |
Correct |
2 ms |
576 KB |
Output is correct |
| 14 |
Correct |
2 ms |
700 KB |
Output is correct |
| 15 |
Correct |
2 ms |
712 KB |
Output is correct |
| 16 |
Correct |
3 ms |
712 KB |
Output is correct |
| 17 |
Correct |
3 ms |
712 KB |
Output is correct |
| 18 |
Correct |
3 ms |
712 KB |
Output is correct |
| 19 |
Correct |
3 ms |
712 KB |
Output is correct |
| 20 |
Correct |
3 ms |
712 KB |
Output is correct |
| 21 |
Correct |
2 ms |
712 KB |
Output is correct |
| 22 |
Correct |
3 ms |
712 KB |
Output is correct |
| 23 |
Correct |
4 ms |
712 KB |
Output is correct |
| 24 |
Correct |
3 ms |
712 KB |
Output is correct |
| 25 |
Correct |
3 ms |
712 KB |
Output is correct |
| 26 |
Correct |
4 ms |
712 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
198 ms |
6208 KB |
Output is correct |
| 2 |
Correct |
215 ms |
6208 KB |
Output is correct |
| 3 |
Correct |
222 ms |
6208 KB |
Output is correct |
| 4 |
Correct |
260 ms |
6336 KB |
Output is correct |
| 5 |
Correct |
107 ms |
6996 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
43 ms |
6996 KB |
Output is correct |
| 2 |
Correct |
45 ms |
6996 KB |
Output is correct |
| 3 |
Correct |
45 ms |
6996 KB |
Output is correct |
| 4 |
Correct |
35 ms |
6996 KB |
Output is correct |
| 5 |
Correct |
3 ms |
6996 KB |
Output is correct |
| 6 |
Correct |
28 ms |
6996 KB |
Output is correct |
| 7 |
Correct |
58 ms |
6996 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
68 ms |
6996 KB |
Output is correct |
| 2 |
Correct |
70 ms |
6996 KB |
Output is correct |
| 3 |
Correct |
176 ms |
6996 KB |
Output is correct |
| 4 |
Correct |
106 ms |
6996 KB |
Output is correct |
| 5 |
Correct |
45 ms |
6996 KB |
Output is correct |
| 6 |
Correct |
68 ms |
6996 KB |
Output is correct |
| 7 |
Correct |
72 ms |
6996 KB |
Output is correct |
| 8 |
Correct |
67 ms |
6996 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
492 KB |
Output is correct |
| 3 |
Correct |
3 ms |
492 KB |
Output is correct |
| 4 |
Correct |
3 ms |
492 KB |
Output is correct |
| 5 |
Correct |
2 ms |
492 KB |
Output is correct |
| 6 |
Correct |
2 ms |
524 KB |
Output is correct |
| 7 |
Correct |
3 ms |
524 KB |
Output is correct |
| 8 |
Correct |
2 ms |
524 KB |
Output is correct |
| 9 |
Correct |
3 ms |
528 KB |
Output is correct |
| 10 |
Correct |
3 ms |
572 KB |
Output is correct |
| 11 |
Correct |
4 ms |
572 KB |
Output is correct |
| 12 |
Correct |
3 ms |
576 KB |
Output is correct |
| 13 |
Correct |
2 ms |
576 KB |
Output is correct |
| 14 |
Correct |
2 ms |
700 KB |
Output is correct |
| 15 |
Correct |
2 ms |
712 KB |
Output is correct |
| 16 |
Correct |
3 ms |
712 KB |
Output is correct |
| 17 |
Correct |
3 ms |
712 KB |
Output is correct |
| 18 |
Correct |
3 ms |
712 KB |
Output is correct |
| 19 |
Correct |
3 ms |
712 KB |
Output is correct |
| 20 |
Correct |
3 ms |
712 KB |
Output is correct |
| 21 |
Correct |
2 ms |
712 KB |
Output is correct |
| 22 |
Correct |
3 ms |
712 KB |
Output is correct |
| 23 |
Correct |
4 ms |
712 KB |
Output is correct |
| 24 |
Correct |
3 ms |
712 KB |
Output is correct |
| 25 |
Correct |
3 ms |
712 KB |
Output is correct |
| 26 |
Correct |
4 ms |
712 KB |
Output is correct |
| 27 |
Correct |
198 ms |
6208 KB |
Output is correct |
| 28 |
Correct |
215 ms |
6208 KB |
Output is correct |
| 29 |
Correct |
222 ms |
6208 KB |
Output is correct |
| 30 |
Correct |
260 ms |
6336 KB |
Output is correct |
| 31 |
Correct |
107 ms |
6996 KB |
Output is correct |
| 32 |
Correct |
43 ms |
6996 KB |
Output is correct |
| 33 |
Correct |
45 ms |
6996 KB |
Output is correct |
| 34 |
Correct |
45 ms |
6996 KB |
Output is correct |
| 35 |
Correct |
35 ms |
6996 KB |
Output is correct |
| 36 |
Correct |
3 ms |
6996 KB |
Output is correct |
| 37 |
Correct |
28 ms |
6996 KB |
Output is correct |
| 38 |
Correct |
58 ms |
6996 KB |
Output is correct |
| 39 |
Correct |
68 ms |
6996 KB |
Output is correct |
| 40 |
Correct |
70 ms |
6996 KB |
Output is correct |
| 41 |
Correct |
176 ms |
6996 KB |
Output is correct |
| 42 |
Correct |
106 ms |
6996 KB |
Output is correct |
| 43 |
Correct |
45 ms |
6996 KB |
Output is correct |
| 44 |
Correct |
68 ms |
6996 KB |
Output is correct |
| 45 |
Correct |
72 ms |
6996 KB |
Output is correct |
| 46 |
Correct |
67 ms |
6996 KB |
Output is correct |
| 47 |
Correct |
90 ms |
6996 KB |
Output is correct |
| 48 |
Correct |
96 ms |
6996 KB |
Output is correct |
| 49 |
Correct |
196 ms |
6996 KB |
Output is correct |
| 50 |
Correct |
104 ms |
7016 KB |
Output is correct |
| 51 |
Correct |
118 ms |
7016 KB |
Output is correct |
| 52 |
Correct |
120 ms |
7016 KB |
Output is correct |
| 53 |
Correct |
85 ms |
7016 KB |
Output is correct |
| 54 |
Correct |
78 ms |
7016 KB |
Output is correct |
| 55 |
Correct |
149 ms |
7016 KB |
Output is correct |
