#include <bits/stdc++.h>
using namespace std;
const int SIZE = 1 << 19;
struct ST {
int A[2 * SIZE];
void update(int s, int e, int v) {
for (s += SIZE, e += SIZE; s <= e; s >>= 1, e >>= 1) {
if ( s & 1) A[s++] += v;
if (~e & 1) A[e--] += v;
}
}
int query(int x) {
int ret = 0;
for (x += SIZE; x; x >>= 1) ret += A[x];
return ret;
}
} seg;
struct In {
int q, x, y;
} in[200005];
int A[200005];
vector<int> xx(1);
int main() {
ios_base::sync_with_stdio(0), cin.tie(0);
int N, M; cin >> N >> M;
for (int i = 1; i <= N; ++i) {
cin >> A[i];
xx.push_back(A[i]);
}
for (int i = 0; i < M; ++i) {
int q, x, y = 0; cin >> q >> x;
if (q == 2) {
cin >> y;
xx.push_back(y);
}
in[i] = {q, x, y};
}
sort(xx.begin(), xx.end());
xx.erase(unique(xx.begin(), xx.end()), xx.end());
for (int i = 1; i <= N; ++i) A[i] = lower_bound(xx.begin(), xx.end(), A[i]) - xx.begin();
for (int i = 0; i < M; ++i) {
if (in[i].q == 1) in[i].x = lower_bound(xx.begin(), xx.end(), in[i].x) - xx.begin();
else in[i].y = lower_bound(xx.begin(), xx.end(), in[i].y) - xx.begin();
}
for (int i = 0; i < N; ++i)
if (A[i] < A[i + 1]) seg.update(A[i] + 1, A[i + 1], 1);
for (int i = 0; i < M; ++i) {
int q, x, y;
q = in[i].q, x = in[i].x, y = in[i].y;
if (q == 1) {
printf("%d\n", seg.query(x));
}
else {
if (A[x] < A[x + 1]) seg.update(A[x] + 1, A[x + 1], -1);
if (A[x - 1] < A[x]) seg.update(A[x - 1] + 1, A[x], -1);
if (y < A[x + 1]) seg.update(y + 1, A[x + 1], 1);
if (A[x - 1] < y) seg.update(A[x - 1] + 1, y, 1);
A[x] = y;
}
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
504 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
3 ms |
504 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
3 ms |
504 KB |
Output is correct |
7 |
Correct |
3 ms |
504 KB |
Output is correct |
8 |
Correct |
3 ms |
504 KB |
Output is correct |
9 |
Correct |
3 ms |
504 KB |
Output is correct |
10 |
Correct |
4 ms |
504 KB |
Output is correct |
11 |
Correct |
4 ms |
632 KB |
Output is correct |
12 |
Correct |
4 ms |
504 KB |
Output is correct |
13 |
Correct |
4 ms |
508 KB |
Output is correct |
14 |
Correct |
4 ms |
504 KB |
Output is correct |
15 |
Correct |
4 ms |
504 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
504 KB |
Output is correct |
2 |
Correct |
4 ms |
504 KB |
Output is correct |
3 |
Correct |
4 ms |
504 KB |
Output is correct |
4 |
Correct |
16 ms |
1400 KB |
Output is correct |
5 |
Correct |
30 ms |
2168 KB |
Output is correct |
6 |
Correct |
45 ms |
3064 KB |
Output is correct |
7 |
Correct |
73 ms |
4596 KB |
Output is correct |
8 |
Correct |
92 ms |
5592 KB |
Output is correct |
9 |
Correct |
148 ms |
8880 KB |
Output is correct |
10 |
Correct |
146 ms |
8300 KB |
Output is correct |
11 |
Correct |
178 ms |
10184 KB |
Output is correct |
12 |
Correct |
199 ms |
11376 KB |
Output is correct |
13 |
Correct |
200 ms |
11376 KB |
Output is correct |
14 |
Correct |
196 ms |
11124 KB |
Output is correct |
15 |
Correct |
200 ms |
11248 KB |
Output is correct |
16 |
Correct |
215 ms |
11504 KB |
Output is correct |
17 |
Correct |
209 ms |
11504 KB |
Output is correct |
18 |
Correct |
209 ms |
11396 KB |
Output is correct |
19 |
Correct |
203 ms |
11372 KB |
Output is correct |
20 |
Correct |
202 ms |
11540 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
504 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
3 ms |
504 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
3 ms |
504 KB |
Output is correct |
7 |
Correct |
3 ms |
504 KB |
Output is correct |
8 |
Correct |
3 ms |
504 KB |
Output is correct |
9 |
Correct |
3 ms |
504 KB |
Output is correct |
10 |
Correct |
4 ms |
504 KB |
Output is correct |
11 |
Correct |
4 ms |
632 KB |
Output is correct |
12 |
Correct |
4 ms |
504 KB |
Output is correct |
13 |
Correct |
4 ms |
508 KB |
Output is correct |
14 |
Correct |
4 ms |
504 KB |
Output is correct |
15 |
Correct |
4 ms |
504 KB |
Output is correct |
16 |
Correct |
3 ms |
504 KB |
Output is correct |
17 |
Correct |
4 ms |
504 KB |
Output is correct |
18 |
Correct |
4 ms |
504 KB |
Output is correct |
19 |
Correct |
16 ms |
1400 KB |
Output is correct |
20 |
Correct |
30 ms |
2168 KB |
Output is correct |
21 |
Correct |
45 ms |
3064 KB |
Output is correct |
22 |
Correct |
73 ms |
4596 KB |
Output is correct |
23 |
Correct |
92 ms |
5592 KB |
Output is correct |
24 |
Correct |
148 ms |
8880 KB |
Output is correct |
25 |
Correct |
146 ms |
8300 KB |
Output is correct |
26 |
Correct |
178 ms |
10184 KB |
Output is correct |
27 |
Correct |
199 ms |
11376 KB |
Output is correct |
28 |
Correct |
200 ms |
11376 KB |
Output is correct |
29 |
Correct |
196 ms |
11124 KB |
Output is correct |
30 |
Correct |
200 ms |
11248 KB |
Output is correct |
31 |
Correct |
215 ms |
11504 KB |
Output is correct |
32 |
Correct |
209 ms |
11504 KB |
Output is correct |
33 |
Correct |
209 ms |
11396 KB |
Output is correct |
34 |
Correct |
203 ms |
11372 KB |
Output is correct |
35 |
Correct |
202 ms |
11540 KB |
Output is correct |
36 |
Correct |
3 ms |
504 KB |
Output is correct |
37 |
Correct |
4 ms |
504 KB |
Output is correct |
38 |
Correct |
4 ms |
504 KB |
Output is correct |
39 |
Correct |
19 ms |
1528 KB |
Output is correct |
40 |
Correct |
33 ms |
2168 KB |
Output is correct |
41 |
Correct |
57 ms |
3448 KB |
Output is correct |
42 |
Correct |
82 ms |
4596 KB |
Output is correct |
43 |
Correct |
112 ms |
6000 KB |
Output is correct |
44 |
Correct |
211 ms |
10480 KB |
Output is correct |
45 |
Correct |
170 ms |
8684 KB |
Output is correct |
46 |
Correct |
189 ms |
9584 KB |
Output is correct |
47 |
Correct |
252 ms |
12236 KB |
Output is correct |
48 |
Correct |
267 ms |
12560 KB |
Output is correct |
49 |
Correct |
256 ms |
12520 KB |
Output is correct |
50 |
Correct |
257 ms |
12344 KB |
Output is correct |
51 |
Correct |
265 ms |
12760 KB |
Output is correct |
52 |
Correct |
263 ms |
12700 KB |
Output is correct |
53 |
Correct |
261 ms |
12780 KB |
Output is correct |
54 |
Correct |
263 ms |
12724 KB |
Output is correct |
55 |
Correct |
263 ms |
12904 KB |
Output is correct |