#include <algorithm>
#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <vector>
using namespace std;
const int MAXN = 1e6 + 5;
int maxn[MAXN * 4 + 10], lazy[MAXN * 4 + 10];
void pushup(int rt) { maxn[rt] = max(maxn[rt << 1], maxn[rt << 1 | 1]); }
void pushdown(int rt) {
if (lazy[rt]) {
maxn[rt << 1] += lazy[rt], maxn[rt << 1 | 1] += lazy[rt];
lazy[rt << 1] += lazy[rt], lazy[rt << 1 | 1] += lazy[rt];
lazy[rt] = 0;
}
}
void update(int L, int R, int I, int l = 1, int r = MAXN, int rt = 1) {
if (L <= l && r <= R) {
maxn[rt] += I, lazy[rt] += I;
return;
}
int m = (l + r) / 2;
pushdown(rt);
if (L <= m) update(L, R, I, l, m, rt << 1);
if (R > m) update(L, R, I, m + 1, r, rt << 1 | 1);
pushup(rt);
}
int query(int L, int R, int l = 1, int r = MAXN, int rt = 1) {
if (L <= l && r <= R)
return maxn[rt];
int m = (l + r) / 2, ans = -1e9, placed = 0;
pushdown(rt);
if (L <= m) {
ans = query(L, R, l, m, rt << 1);
placed = 1;
}
if (R > m) {
if(placed) ans = max(ans, query(L, R, m + 1, r, rt << 1 | 1));
else ans = query(L, R, m + 1, r, rt << 1 | 1);
}
return ans;
}
void p_update(int x, int I, int len = MAXN) {
int v = query(x, x);
update(x, x, I - v);
}
typedef pair<int, int> pr;
#define mp make_pair
pr pool[MAXN];
int tot;
struct BIT {
int t[MAXN + 20];
void update(int x, int I) {
while (x <= MAXN)
t[x] += I, x += x & -x;
}
int query(int x) {
int ans = 0;
while (x) ans += t[x], x -= x & -x;
return ans;
}
} T;
void compress(int &x, int id) {
x = lower_bound(pool + 1, pool + tot + 1, mp(x, id)) - pool;
}
std::vector<int> countScans(std::vector<int> A, std::vector<int> X, std::vector<int> V) {
int Q = X.size(), N = A.size();
std::vector<int> answer(Q);
for (int i = 0; i < N; i++)
pool[++tot] = mp(A[i], i);
for (int i = 0; i < Q; i++)
pool[++tot] = mp(V[i], X[i]);
sort(pool + 1, pool + tot + 1);
tot = unique(pool + 1, pool + tot + 1) - pool - 1;
for (int i = 0; i < N; i++)
compress(A[i], i), T.update(A[i], 1);
for (int i = 0; i < Q; i++)
compress(V[i], X[i]);
for (int i = 0; i < 4 * MAXN + 10; i++)
maxn[i] = -1e7;
for (int i = 0; i < N; i++) {
p_update(A[i], i - T.query(A[i] - 1));
}
for (int i = 0; i < Q; i++) {
int src = A[X[i]];
if (src == V[i]) {
answer[i] = query(1, MAXN);
continue;
}
T.update(src, -1);
T.update(V[i], 1);
p_update(src, -1e7);
p_update(V[i], X[i] - T.query(V[i] - 1));
if (src < V[i]) {
if (src + 1 <= V[i] - 1) update(src + 1, V[i] - 1, 1);
} else {
if (V[i] + 1 <= src - 1) update(V[i] + 1, src - 1, -1);
}
A[X[i]] = V[i];
answer[i] = query(1, MAXN);
}
return answer;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
9 ms |
16084 KB |
Output is correct |
2 |
Correct |
9 ms |
16072 KB |
Output is correct |
3 |
Correct |
13 ms |
16204 KB |
Output is correct |
4 |
Correct |
12 ms |
16176 KB |
Output is correct |
5 |
Correct |
11 ms |
16212 KB |
Output is correct |
6 |
Correct |
11 ms |
16232 KB |
Output is correct |
7 |
Correct |
11 ms |
16212 KB |
Output is correct |
8 |
Correct |
11 ms |
16188 KB |
Output is correct |
9 |
Correct |
11 ms |
16212 KB |
Output is correct |
10 |
Correct |
12 ms |
16212 KB |
Output is correct |
11 |
Correct |
12 ms |
16340 KB |
Output is correct |
12 |
Correct |
11 ms |
16192 KB |
Output is correct |
13 |
Correct |
12 ms |
16212 KB |
Output is correct |
14 |
Correct |
12 ms |
16300 KB |
Output is correct |
15 |
Correct |
12 ms |
16184 KB |
Output is correct |
16 |
Correct |
12 ms |
16196 KB |
Output is correct |
17 |
Correct |
11 ms |
16212 KB |
Output is correct |
18 |
Correct |
12 ms |
16104 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
9 ms |
16084 KB |
Output is correct |
2 |
Correct |
9 ms |
16072 KB |
Output is correct |
3 |
Correct |
13 ms |
16204 KB |
Output is correct |
4 |
Correct |
12 ms |
16176 KB |
Output is correct |
5 |
Correct |
11 ms |
16212 KB |
Output is correct |
6 |
Correct |
11 ms |
16232 KB |
Output is correct |
7 |
Correct |
11 ms |
16212 KB |
Output is correct |
8 |
Correct |
11 ms |
16188 KB |
Output is correct |
9 |
Correct |
11 ms |
16212 KB |
Output is correct |
10 |
Correct |
12 ms |
16212 KB |
Output is correct |
11 |
Correct |
12 ms |
16340 KB |
Output is correct |
12 |
Correct |
11 ms |
16192 KB |
Output is correct |
13 |
Correct |
12 ms |
16212 KB |
Output is correct |
14 |
Correct |
12 ms |
16300 KB |
Output is correct |
15 |
Correct |
12 ms |
16184 KB |
Output is correct |
16 |
Correct |
12 ms |
16196 KB |
Output is correct |
17 |
Correct |
11 ms |
16212 KB |
Output is correct |
18 |
Correct |
12 ms |
16104 KB |
Output is correct |
19 |
Correct |
25 ms |
16672 KB |
Output is correct |
20 |
Correct |
26 ms |
16688 KB |
Output is correct |
21 |
Correct |
25 ms |
16772 KB |
Output is correct |
22 |
Correct |
25 ms |
16704 KB |
Output is correct |
23 |
Correct |
24 ms |
16716 KB |
Output is correct |
24 |
Correct |
25 ms |
16712 KB |
Output is correct |
25 |
Correct |
27 ms |
16692 KB |
Output is correct |
26 |
Correct |
25 ms |
16636 KB |
Output is correct |
27 |
Correct |
24 ms |
16692 KB |
Output is correct |
28 |
Correct |
25 ms |
16724 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
28 ms |
16980 KB |
Output is correct |
2 |
Correct |
75 ms |
18412 KB |
Output is correct |
3 |
Correct |
130 ms |
19952 KB |
Output is correct |
4 |
Correct |
123 ms |
19956 KB |
Output is correct |
5 |
Correct |
123 ms |
19884 KB |
Output is correct |
6 |
Correct |
120 ms |
19852 KB |
Output is correct |
7 |
Correct |
124 ms |
19944 KB |
Output is correct |
8 |
Correct |
120 ms |
19932 KB |
Output is correct |
9 |
Correct |
121 ms |
19916 KB |
Output is correct |
10 |
Correct |
83 ms |
19404 KB |
Output is correct |
11 |
Correct |
81 ms |
19324 KB |
Output is correct |
12 |
Correct |
83 ms |
19316 KB |
Output is correct |
13 |
Correct |
103 ms |
19412 KB |
Output is correct |
14 |
Correct |
93 ms |
19372 KB |
Output is correct |
15 |
Correct |
93 ms |
19320 KB |
Output is correct |
16 |
Correct |
102 ms |
19532 KB |
Output is correct |
17 |
Correct |
106 ms |
19404 KB |
Output is correct |
18 |
Correct |
103 ms |
19296 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
9 ms |
16084 KB |
Output is correct |
2 |
Correct |
9 ms |
16072 KB |
Output is correct |
3 |
Correct |
13 ms |
16204 KB |
Output is correct |
4 |
Correct |
12 ms |
16176 KB |
Output is correct |
5 |
Correct |
11 ms |
16212 KB |
Output is correct |
6 |
Correct |
11 ms |
16232 KB |
Output is correct |
7 |
Correct |
11 ms |
16212 KB |
Output is correct |
8 |
Correct |
11 ms |
16188 KB |
Output is correct |
9 |
Correct |
11 ms |
16212 KB |
Output is correct |
10 |
Correct |
12 ms |
16212 KB |
Output is correct |
11 |
Correct |
12 ms |
16340 KB |
Output is correct |
12 |
Correct |
11 ms |
16192 KB |
Output is correct |
13 |
Correct |
12 ms |
16212 KB |
Output is correct |
14 |
Correct |
12 ms |
16300 KB |
Output is correct |
15 |
Correct |
12 ms |
16184 KB |
Output is correct |
16 |
Correct |
12 ms |
16196 KB |
Output is correct |
17 |
Correct |
11 ms |
16212 KB |
Output is correct |
18 |
Correct |
12 ms |
16104 KB |
Output is correct |
19 |
Correct |
25 ms |
16672 KB |
Output is correct |
20 |
Correct |
26 ms |
16688 KB |
Output is correct |
21 |
Correct |
25 ms |
16772 KB |
Output is correct |
22 |
Correct |
25 ms |
16704 KB |
Output is correct |
23 |
Correct |
24 ms |
16716 KB |
Output is correct |
24 |
Correct |
25 ms |
16712 KB |
Output is correct |
25 |
Correct |
27 ms |
16692 KB |
Output is correct |
26 |
Correct |
25 ms |
16636 KB |
Output is correct |
27 |
Correct |
24 ms |
16692 KB |
Output is correct |
28 |
Correct |
25 ms |
16724 KB |
Output is correct |
29 |
Correct |
28 ms |
16980 KB |
Output is correct |
30 |
Correct |
75 ms |
18412 KB |
Output is correct |
31 |
Correct |
130 ms |
19952 KB |
Output is correct |
32 |
Correct |
123 ms |
19956 KB |
Output is correct |
33 |
Correct |
123 ms |
19884 KB |
Output is correct |
34 |
Correct |
120 ms |
19852 KB |
Output is correct |
35 |
Correct |
124 ms |
19944 KB |
Output is correct |
36 |
Correct |
120 ms |
19932 KB |
Output is correct |
37 |
Correct |
121 ms |
19916 KB |
Output is correct |
38 |
Correct |
83 ms |
19404 KB |
Output is correct |
39 |
Correct |
81 ms |
19324 KB |
Output is correct |
40 |
Correct |
83 ms |
19316 KB |
Output is correct |
41 |
Correct |
103 ms |
19412 KB |
Output is correct |
42 |
Correct |
93 ms |
19372 KB |
Output is correct |
43 |
Correct |
93 ms |
19320 KB |
Output is correct |
44 |
Correct |
102 ms |
19532 KB |
Output is correct |
45 |
Correct |
106 ms |
19404 KB |
Output is correct |
46 |
Correct |
103 ms |
19296 KB |
Output is correct |
47 |
Correct |
405 ms |
29628 KB |
Output is correct |
48 |
Correct |
1576 ms |
58748 KB |
Output is correct |
49 |
Correct |
1713 ms |
62496 KB |
Output is correct |
50 |
Correct |
1728 ms |
62572 KB |
Output is correct |
51 |
Correct |
1717 ms |
62428 KB |
Output is correct |
52 |
Correct |
1784 ms |
62636 KB |
Output is correct |
53 |
Correct |
1800 ms |
62460 KB |
Output is correct |
54 |
Correct |
1589 ms |
62628 KB |
Output is correct |
55 |
Correct |
1734 ms |
62616 KB |
Output is correct |
56 |
Correct |
1554 ms |
62628 KB |
Output is correct |
57 |
Correct |
1617 ms |
62712 KB |
Output is correct |
58 |
Correct |
1558 ms |
62536 KB |
Output is correct |
59 |
Correct |
1508 ms |
59920 KB |
Output is correct |
60 |
Correct |
1539 ms |
59900 KB |
Output is correct |
61 |
Correct |
1511 ms |
59952 KB |
Output is correct |
62 |
Correct |
1426 ms |
59008 KB |
Output is correct |
63 |
Correct |
1436 ms |
58944 KB |
Output is correct |
64 |
Correct |
1439 ms |
58884 KB |
Output is correct |
65 |
Correct |
1399 ms |
58132 KB |
Output is correct |
66 |
Correct |
1372 ms |
58040 KB |
Output is correct |
67 |
Correct |
1404 ms |
58048 KB |
Output is correct |