#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif
template<class T>
using Tree = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>;
int main() {
ios::sync_with_stdio(false); cin.tie(nullptr);
int n, m; cin >> n >> m;
vector<int> a(n);
array<Tree<int>, 2> st;
for (int i = 0; i < n; ++i) {
cin >> a[i];
st[0].insert(a[i]);
if (i) {
st[1].insert(min(a[i], a[i - 1]));
}
}
auto ers = [&](int i) {
st[0].erase(st[0].upper_bound(a[i]));
if (i) {
st[1].erase(st[1].upper_bound(min(a[i], a[i - 1])));
}
if (i + 1 < n) {
st[1].erase(st[1].upper_bound(min(a[i], a[i + 1])));
}
};
auto ins = [&](int i, int x) {
a[i] = x;
st[0].insert(a[i]);
if (i) {
st[1].insert(min(a[i], a[i - 1]));
}
if (i + 1 < n) {
st[1].insert(min(a[i], a[i + 1]));
}
};
auto count = [&](Tree<int> &st, int x) {
return st.size() - st.order_of_key(x);
};
auto qry = [&](int x) {
return count(st[0], x) - count(st[1], x);
};
while (m--) {
int t; cin >> t;
if (t == 1) {
int b; cin >> b;
cout << qry(b) << "\n";
} else {
int c, d; cin >> c >> d; --c;
ers(c);
ins(c, d);
}
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
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 |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
2 ms |
604 KB |
Output is correct |
8 |
Correct |
2 ms |
344 KB |
Output is correct |
9 |
Correct |
2 ms |
604 KB |
Output is correct |
10 |
Correct |
2 ms |
604 KB |
Output is correct |
11 |
Correct |
2 ms |
604 KB |
Output is correct |
12 |
Correct |
3 ms |
604 KB |
Output is correct |
13 |
Correct |
3 ms |
604 KB |
Output is correct |
14 |
Correct |
2 ms |
604 KB |
Output is correct |
15 |
Correct |
2 ms |
604 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
600 KB |
Output is correct |
2 |
Correct |
3 ms |
604 KB |
Output is correct |
3 |
Correct |
2 ms |
604 KB |
Output is correct |
4 |
Correct |
16 ms |
1956 KB |
Output is correct |
5 |
Correct |
39 ms |
4700 KB |
Output is correct |
6 |
Correct |
52 ms |
5456 KB |
Output is correct |
7 |
Correct |
92 ms |
10020 KB |
Output is correct |
8 |
Correct |
118 ms |
11572 KB |
Output is correct |
9 |
Correct |
213 ms |
16068 KB |
Output is correct |
10 |
Correct |
246 ms |
22356 KB |
Output is correct |
11 |
Correct |
257 ms |
21588 KB |
Output is correct |
12 |
Correct |
307 ms |
24656 KB |
Output is correct |
13 |
Correct |
330 ms |
25172 KB |
Output is correct |
14 |
Correct |
296 ms |
24396 KB |
Output is correct |
15 |
Correct |
333 ms |
24660 KB |
Output is correct |
16 |
Correct |
310 ms |
25432 KB |
Output is correct |
17 |
Correct |
347 ms |
25464 KB |
Output is correct |
18 |
Correct |
302 ms |
25424 KB |
Output is correct |
19 |
Correct |
318 ms |
25464 KB |
Output is correct |
20 |
Correct |
308 ms |
25500 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
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 |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
2 ms |
604 KB |
Output is correct |
8 |
Correct |
2 ms |
344 KB |
Output is correct |
9 |
Correct |
2 ms |
604 KB |
Output is correct |
10 |
Correct |
2 ms |
604 KB |
Output is correct |
11 |
Correct |
2 ms |
604 KB |
Output is correct |
12 |
Correct |
3 ms |
604 KB |
Output is correct |
13 |
Correct |
3 ms |
604 KB |
Output is correct |
14 |
Correct |
2 ms |
604 KB |
Output is correct |
15 |
Correct |
2 ms |
604 KB |
Output is correct |
16 |
Correct |
2 ms |
600 KB |
Output is correct |
17 |
Correct |
3 ms |
604 KB |
Output is correct |
18 |
Correct |
2 ms |
604 KB |
Output is correct |
19 |
Correct |
16 ms |
1956 KB |
Output is correct |
20 |
Correct |
39 ms |
4700 KB |
Output is correct |
21 |
Correct |
52 ms |
5456 KB |
Output is correct |
22 |
Correct |
92 ms |
10020 KB |
Output is correct |
23 |
Correct |
118 ms |
11572 KB |
Output is correct |
24 |
Correct |
213 ms |
16068 KB |
Output is correct |
25 |
Correct |
246 ms |
22356 KB |
Output is correct |
26 |
Correct |
257 ms |
21588 KB |
Output is correct |
27 |
Correct |
307 ms |
24656 KB |
Output is correct |
28 |
Correct |
330 ms |
25172 KB |
Output is correct |
29 |
Correct |
296 ms |
24396 KB |
Output is correct |
30 |
Correct |
333 ms |
24660 KB |
Output is correct |
31 |
Correct |
310 ms |
25432 KB |
Output is correct |
32 |
Correct |
347 ms |
25464 KB |
Output is correct |
33 |
Correct |
302 ms |
25424 KB |
Output is correct |
34 |
Correct |
318 ms |
25464 KB |
Output is correct |
35 |
Correct |
308 ms |
25500 KB |
Output is correct |
36 |
Correct |
2 ms |
604 KB |
Output is correct |
37 |
Correct |
2 ms |
600 KB |
Output is correct |
38 |
Correct |
3 ms |
604 KB |
Output is correct |
39 |
Correct |
29 ms |
2692 KB |
Output is correct |
40 |
Correct |
47 ms |
3412 KB |
Output is correct |
41 |
Correct |
86 ms |
5456 KB |
Output is correct |
42 |
Correct |
127 ms |
9040 KB |
Output is correct |
43 |
Correct |
183 ms |
11344 KB |
Output is correct |
44 |
Correct |
405 ms |
23084 KB |
Output is correct |
45 |
Correct |
300 ms |
18260 KB |
Output is correct |
46 |
Correct |
351 ms |
20048 KB |
Output is correct |
47 |
Correct |
511 ms |
25172 KB |
Output is correct |
48 |
Correct |
473 ms |
24828 KB |
Output is correct |
49 |
Correct |
491 ms |
25200 KB |
Output is correct |
50 |
Correct |
474 ms |
24912 KB |
Output is correct |
51 |
Correct |
524 ms |
25456 KB |
Output is correct |
52 |
Correct |
484 ms |
25484 KB |
Output is correct |
53 |
Correct |
488 ms |
25428 KB |
Output is correct |
54 |
Correct |
513 ms |
25380 KB |
Output is correct |
55 |
Correct |
524 ms |
25428 KB |
Output is correct |