#include "bits/extc++.h"
using namespace std;
template <typename T>
void dbgh(const T& t) {
cerr << t << endl;
}
template <typename T, typename... U>
void dbgh(const T& t, const U&... u) {
cerr << t << " | ";
dbgh(u...);
}
#ifdef DEBUG
#define dbg(...) \
cerr << "L" << __LINE__ << " [" << #__VA_ARGS__ << "]: "; \
dbgh(__VA_ARGS__);
#else
#define dbg(...)
#define cerr \
if (false) \
cerr
#endif
#define endl "\n"
#define long int64_t
#define sz(x) int((x).size())
const int dx[] = {0, 0, -1, 1}, dy[] = {-1, 1, 0, 0};
struct Node {
int mn, cnt;
void apply_lazy(int x) {
mn += x;
}
Node operator+(const Node& n) const {
if (mn < n.mn) {
return *this;
} else if (n.mn < mn) {
return n;
}
return {mn, cnt + n.cnt};
}
};
struct DS {
int n;
vector<Node> v;
vector<int> lazy;
DS() {}
DS(int n): n(n), v(4 * n, {0, 1}), lazy(4 * n) {
build(1, 0, n - 1);
}
void build(int o, int l, int r) {
if (l == r) {
return;
}
int mid = (l + r) / 2, lc = o * 2, rc = lc + 1;
build(lc, l, mid);
build(rc, mid + 1, r);
v[o] = v[lc] + v[rc];
}
void update(int o, int l, int r, int ql, int qr, int x) {
if (ql <= l && r <= qr) {
lazy[o] += x;
v[o].apply_lazy(x);
return;
}
int mid = (l + r) / 2, lc = o * 2, rc = lc + 1;
if (ql <= mid) {
update(lc, l, mid, ql, qr, x);
}
if (mid < qr) {
update(rc, mid + 1, r, ql, qr, x);
}
v[o] = v[lc] + v[rc];
v[o].apply_lazy(lazy[o]);
}
void update(int l, int r, int x) {
if (l > r) {
return;
}
update(1, 0, n - 1, l, r, x);
}
int query() const {
return v[1].cnt;
}
} ds;
int n, m;
vector<vector<int>> arr;
vector<pair<int, int>> pos;
bool ibs(int x, int y) {
return 0 <= x && x < n && 0 <= y && y < m;
}
void update1(int x, int y, int v) {
int ans = n * m;
auto go = [&](int x, int y) -> void {
if (ibs(x, y)) {
ans = min(ans, arr[x][y]);
}
};
go(x - 1, y);
go(x, y - 1);
ds.update(arr[x][y], ans - 1, v);
}
void update2(int x, int y, int v) {
int adj[4];
for (int i = 0; i < 4; i++) {
int cx = x + dx[i], cy = y + dy[i];
if (ibs(cx, cy)) {
adj[i] = arr[cx][cy];
} else {
adj[i] = 1e9;
}
}
sort(begin(adj), end(adj));
ds.update(adj[1], arr[x][y] - 1, v);
}
void update(int x, int y, int v) {
update1(x, y, v);
update2(x, y, v);
}
void set_pos(int u) {
auto& [x, y] = pos[u];
arr[x][y] = u;
}
void give_initial_chart(int _n, int _m, vector<int> r, vector<int> c) {
n = _n;
m = _m;
ds = DS(n * m);
pos.resize(n * m);
arr.resize(n, vector<int>(m));
for (int i = 0; i < n * m; i++) {
pos[i] = {r[i], c[i]};
set_pos(i);
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
update(i, j, 1);
}
}
}
int swap_seats(int u, int v) {
set<pair<int, int>> changed;
for (auto& [x, y] : {pos[u], pos[v]}) {
changed.emplace(x, y);
for (int i = 0; i < 4; i++) {
int cx = x + dx[i], cy = y + dy[i];
if (ibs(cx, cy)) {
changed.emplace(cx, cy);
}
}
}
for (auto& [x, y] : changed) {
update(x, y, -1);
}
swap(pos[u], pos[v]);
set_pos(u);
set_pos(v);
for (auto& [x, y] : changed) {
update(x, y, 1);
}
return ds.query();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
340 KB |
Output is correct |
2 |
Correct |
15 ms |
340 KB |
Output is correct |
3 |
Correct |
22 ms |
424 KB |
Output is correct |
4 |
Correct |
14 ms |
400 KB |
Output is correct |
5 |
Correct |
8 ms |
480 KB |
Output is correct |
6 |
Correct |
20 ms |
460 KB |
Output is correct |
7 |
Correct |
20 ms |
436 KB |
Output is correct |
8 |
Correct |
20 ms |
436 KB |
Output is correct |
9 |
Correct |
17 ms |
424 KB |
Output is correct |
10 |
Correct |
20 ms |
432 KB |
Output is correct |
11 |
Correct |
18 ms |
456 KB |
Output is correct |
12 |
Correct |
14 ms |
396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
340 KB |
Output is correct |
2 |
Correct |
15 ms |
340 KB |
Output is correct |
3 |
Correct |
22 ms |
424 KB |
Output is correct |
4 |
Correct |
14 ms |
400 KB |
Output is correct |
5 |
Correct |
8 ms |
480 KB |
Output is correct |
6 |
Correct |
20 ms |
460 KB |
Output is correct |
7 |
Correct |
20 ms |
436 KB |
Output is correct |
8 |
Correct |
20 ms |
436 KB |
Output is correct |
9 |
Correct |
17 ms |
424 KB |
Output is correct |
10 |
Correct |
20 ms |
432 KB |
Output is correct |
11 |
Correct |
18 ms |
456 KB |
Output is correct |
12 |
Correct |
14 ms |
396 KB |
Output is correct |
13 |
Correct |
39 ms |
1236 KB |
Output is correct |
14 |
Correct |
46 ms |
1256 KB |
Output is correct |
15 |
Correct |
28 ms |
1296 KB |
Output is correct |
16 |
Correct |
14 ms |
1788 KB |
Output is correct |
17 |
Correct |
36 ms |
1272 KB |
Output is correct |
18 |
Correct |
30 ms |
1236 KB |
Output is correct |
19 |
Correct |
29 ms |
1296 KB |
Output is correct |
20 |
Correct |
30 ms |
1516 KB |
Output is correct |
21 |
Correct |
21 ms |
1316 KB |
Output is correct |
22 |
Correct |
29 ms |
1764 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
958 ms |
74756 KB |
Output is correct |
2 |
Correct |
505 ms |
74888 KB |
Output is correct |
3 |
Correct |
633 ms |
74876 KB |
Output is correct |
4 |
Correct |
440 ms |
81696 KB |
Output is correct |
5 |
Correct |
525 ms |
81756 KB |
Output is correct |
6 |
Correct |
653 ms |
81788 KB |
Output is correct |
7 |
Correct |
647 ms |
81840 KB |
Output is correct |
8 |
Correct |
580 ms |
81992 KB |
Output is correct |
9 |
Correct |
607 ms |
81836 KB |
Output is correct |
10 |
Correct |
513 ms |
81760 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
38 ms |
1020 KB |
Output is correct |
2 |
Correct |
86 ms |
7296 KB |
Output is correct |
3 |
Correct |
503 ms |
75204 KB |
Output is correct |
4 |
Correct |
951 ms |
75132 KB |
Output is correct |
5 |
Correct |
456 ms |
86312 KB |
Output is correct |
6 |
Correct |
995 ms |
139548 KB |
Output is correct |
7 |
Correct |
460 ms |
90024 KB |
Output is correct |
8 |
Correct |
679 ms |
88768 KB |
Output is correct |
9 |
Correct |
619 ms |
88992 KB |
Output is correct |
10 |
Correct |
511 ms |
91900 KB |
Output is correct |
11 |
Correct |
465 ms |
112256 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
35 ms |
1352 KB |
Output is correct |
2 |
Correct |
70 ms |
1340 KB |
Output is correct |
3 |
Correct |
114 ms |
1600 KB |
Output is correct |
4 |
Correct |
137 ms |
1580 KB |
Output is correct |
5 |
Correct |
218 ms |
2300 KB |
Output is correct |
6 |
Correct |
727 ms |
79456 KB |
Output is correct |
7 |
Correct |
834 ms |
87720 KB |
Output is correct |
8 |
Correct |
765 ms |
87548 KB |
Output is correct |
9 |
Correct |
1177 ms |
87556 KB |
Output is correct |
10 |
Correct |
638 ms |
87528 KB |
Output is correct |
11 |
Correct |
657 ms |
95540 KB |
Output is correct |
12 |
Correct |
402 ms |
95532 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
340 KB |
Output is correct |
2 |
Correct |
15 ms |
340 KB |
Output is correct |
3 |
Correct |
22 ms |
424 KB |
Output is correct |
4 |
Correct |
14 ms |
400 KB |
Output is correct |
5 |
Correct |
8 ms |
480 KB |
Output is correct |
6 |
Correct |
20 ms |
460 KB |
Output is correct |
7 |
Correct |
20 ms |
436 KB |
Output is correct |
8 |
Correct |
20 ms |
436 KB |
Output is correct |
9 |
Correct |
17 ms |
424 KB |
Output is correct |
10 |
Correct |
20 ms |
432 KB |
Output is correct |
11 |
Correct |
18 ms |
456 KB |
Output is correct |
12 |
Correct |
14 ms |
396 KB |
Output is correct |
13 |
Correct |
39 ms |
1236 KB |
Output is correct |
14 |
Correct |
46 ms |
1256 KB |
Output is correct |
15 |
Correct |
28 ms |
1296 KB |
Output is correct |
16 |
Correct |
14 ms |
1788 KB |
Output is correct |
17 |
Correct |
36 ms |
1272 KB |
Output is correct |
18 |
Correct |
30 ms |
1236 KB |
Output is correct |
19 |
Correct |
29 ms |
1296 KB |
Output is correct |
20 |
Correct |
30 ms |
1516 KB |
Output is correct |
21 |
Correct |
21 ms |
1316 KB |
Output is correct |
22 |
Correct |
29 ms |
1764 KB |
Output is correct |
23 |
Correct |
958 ms |
74756 KB |
Output is correct |
24 |
Correct |
505 ms |
74888 KB |
Output is correct |
25 |
Correct |
633 ms |
74876 KB |
Output is correct |
26 |
Correct |
440 ms |
81696 KB |
Output is correct |
27 |
Correct |
525 ms |
81756 KB |
Output is correct |
28 |
Correct |
653 ms |
81788 KB |
Output is correct |
29 |
Correct |
647 ms |
81840 KB |
Output is correct |
30 |
Correct |
580 ms |
81992 KB |
Output is correct |
31 |
Correct |
607 ms |
81836 KB |
Output is correct |
32 |
Correct |
513 ms |
81760 KB |
Output is correct |
33 |
Correct |
38 ms |
1020 KB |
Output is correct |
34 |
Correct |
86 ms |
7296 KB |
Output is correct |
35 |
Correct |
503 ms |
75204 KB |
Output is correct |
36 |
Correct |
951 ms |
75132 KB |
Output is correct |
37 |
Correct |
456 ms |
86312 KB |
Output is correct |
38 |
Correct |
995 ms |
139548 KB |
Output is correct |
39 |
Correct |
460 ms |
90024 KB |
Output is correct |
40 |
Correct |
679 ms |
88768 KB |
Output is correct |
41 |
Correct |
619 ms |
88992 KB |
Output is correct |
42 |
Correct |
511 ms |
91900 KB |
Output is correct |
43 |
Correct |
465 ms |
112256 KB |
Output is correct |
44 |
Correct |
35 ms |
1352 KB |
Output is correct |
45 |
Correct |
70 ms |
1340 KB |
Output is correct |
46 |
Correct |
114 ms |
1600 KB |
Output is correct |
47 |
Correct |
137 ms |
1580 KB |
Output is correct |
48 |
Correct |
218 ms |
2300 KB |
Output is correct |
49 |
Correct |
727 ms |
79456 KB |
Output is correct |
50 |
Correct |
834 ms |
87720 KB |
Output is correct |
51 |
Correct |
765 ms |
87548 KB |
Output is correct |
52 |
Correct |
1177 ms |
87556 KB |
Output is correct |
53 |
Correct |
638 ms |
87528 KB |
Output is correct |
54 |
Correct |
657 ms |
95540 KB |
Output is correct |
55 |
Correct |
402 ms |
95532 KB |
Output is correct |
56 |
Correct |
107 ms |
1968 KB |
Output is correct |
57 |
Correct |
211 ms |
2000 KB |
Output is correct |
58 |
Correct |
300 ms |
2760 KB |
Output is correct |
59 |
Correct |
1129 ms |
91664 KB |
Output is correct |
60 |
Correct |
1596 ms |
90396 KB |
Output is correct |
61 |
Correct |
763 ms |
91664 KB |
Output is correct |
62 |
Correct |
729 ms |
93180 KB |
Output is correct |
63 |
Correct |
1517 ms |
92852 KB |
Output is correct |
64 |
Correct |
1027 ms |
91936 KB |
Output is correct |
65 |
Correct |
927 ms |
91660 KB |
Output is correct |
66 |
Correct |
1112 ms |
92016 KB |
Output is correct |
67 |
Correct |
917 ms |
94748 KB |
Output is correct |
68 |
Correct |
740 ms |
105912 KB |
Output is correct |
69 |
Correct |
1509 ms |
115108 KB |
Output is correct |