#include<bits/stdc++.h>
#define fi first
#define se second
#define endl "\n"
#define ii pair<int, int>
#define all(v) v.begin(), v.end()
using namespace std;
const int N = 1e6 + 10, M = 1010;
int r[N], c[N], order[4];
vector<vector<int> > a;
int h, w;
int f[N << 2], g[N << 2], lazy[N << 2];
void push(int s, int l, int r) {
if (!lazy[s]) return;
f[s] += lazy[s];
if (l != r) {
lazy[s << 1] += lazy[s];
lazy[s << 1 | 1] += lazy[s];
}
lazy[s] = 0;
}
void up(int s, int l, int r, int from, int to, int val) {
push(s, l, r);
if (l > to || r < from) return;
if (from <= l && r <= to) {
lazy[s] = val;
push(s, l, r);
return;
}
int mid = l + r >> 1;
up(s << 1, l, mid, from, to, val);
up(s << 1 | 1, mid + 1, r, from, to, val);
f[s] = min(f[s << 1], f[s << 1 | 1]);
g[s] = (f[s] == f[s << 1]) * g[s << 1] + (f[s] == f[s << 1 | 1]) * g[s << 1 | 1];
}
void update (int x, int y, int val) {
order[0] = a[x][y];
order[1] = a[x + 1][y];
order[2] = a[x][y + 1];
order[3] = a[x + 1][y + 1];
order[4] = h * w + 1;
sort(order, order + 4);
int one = 0, three = 0, cnt = 0;
for(int i = 0; i < 4; i++) {
cnt += order[i] > 0;
if (cnt == 1) up(1, 1, h * w, order[i], order[i + 1] - 1, val);
if (cnt == 3) up(1, 1, h * w, order[i], order[i + 1] - 1, val * 5);
}
}
void give_initial_chart(int _h, int _w, vector<int> _r, vector<int> _c) {
h = _h; w = _w;
a = vector<vector<int> > (h + 2, vector<int> (w + 2));
for(int i = 1; i <= h * w; i++) {
r[i] = _r[i - 1] + 1, c[i] = _c[i - 1] + 1;
a[r[i]][c[i]] = i;
}
for(int i = 1; i <= 4 * h * w; i++) g[i] = 1;
for(int i = 0; i <= h; i++) for(int j = 0; j <= w; j++) update(i, j, 1);
// for(int i = 0; i < h * w; i++) cout << r[i] << " " << c[i] << endl;
}
void change (int x, int y, int val) {
update(x - 1, y - 1, val);
update(x, y - 1, val);
update(x - 1, y, val);
update(x, y, val);
}
int swap_seats(int x, int y) {
++x; ++y;
change(r[x], c[x], -1);
a[r[x]][c[x]] = y;
change(r[x], c[x], 1);
change(r[y], c[y], -1);
a[r[y]][c[y]] = x;
change(r[y], c[y], 1);
swap(r[x], r[y]);
swap(c[x], c[y]);
return g[1];
}
#ifdef ngu
int main() {
freopen ("task.inp", "r", stdin);
freopen ("task.out", "w", stdout);
int _h, _w; cin >> _h >> _w;
vector<int> _r(_h * _w), _c(_h * _w);
for(int i = 0; i < _h; i++) for(int j = 0; j < _w; j++) {
int x; cin >> x;
_r[x] = i;
_c[x] = j;
}
give_initial_chart(_h, _w, _r, _c);
int q; cin >> q;
while (q--) {
int a, b; cin >> a >> b;
cout << swap_seats(a, b) << endl;
}
}
#endif // ngu
Compilation message
seats.cpp: In function 'void up(int, int, int, int, int, int)':
seats.cpp:38:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
38 | int mid = l + r >> 1;
| ~~^~~
seats.cpp: In function 'void update(int, int, int)':
seats.cpp:52:7: warning: unused variable 'one' [-Wunused-variable]
52 | int one = 0, three = 0, cnt = 0;
| ^~~
seats.cpp:52:16: warning: unused variable 'three' [-Wunused-variable]
52 | int one = 0, three = 0, cnt = 0;
| ^~~~~
seats.cpp:50:10: warning: array subscript 4 is above array bounds of 'int [4]' [-Warray-bounds]
50 | order[4] = h * w + 1;
| ~~~~~~~^
seats.cpp:12:17: note: while referencing 'order'
12 | int r[N], c[N], order[4];
| ^~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
12 ms |
8540 KB |
Output is correct |
2 |
Correct |
16 ms |
8720 KB |
Output is correct |
3 |
Correct |
30 ms |
8540 KB |
Output is correct |
4 |
Correct |
16 ms |
8720 KB |
Output is correct |
5 |
Correct |
14 ms |
8540 KB |
Output is correct |
6 |
Correct |
24 ms |
8744 KB |
Output is correct |
7 |
Correct |
31 ms |
8712 KB |
Output is correct |
8 |
Correct |
22 ms |
8540 KB |
Output is correct |
9 |
Correct |
22 ms |
8720 KB |
Output is correct |
10 |
Correct |
25 ms |
8536 KB |
Output is correct |
11 |
Correct |
23 ms |
8536 KB |
Output is correct |
12 |
Correct |
14 ms |
8540 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
12 ms |
8540 KB |
Output is correct |
2 |
Correct |
16 ms |
8720 KB |
Output is correct |
3 |
Correct |
30 ms |
8540 KB |
Output is correct |
4 |
Correct |
16 ms |
8720 KB |
Output is correct |
5 |
Correct |
14 ms |
8540 KB |
Output is correct |
6 |
Correct |
24 ms |
8744 KB |
Output is correct |
7 |
Correct |
31 ms |
8712 KB |
Output is correct |
8 |
Correct |
22 ms |
8540 KB |
Output is correct |
9 |
Correct |
22 ms |
8720 KB |
Output is correct |
10 |
Correct |
25 ms |
8536 KB |
Output is correct |
11 |
Correct |
23 ms |
8536 KB |
Output is correct |
12 |
Correct |
14 ms |
8540 KB |
Output is correct |
13 |
Correct |
60 ms |
8796 KB |
Output is correct |
14 |
Correct |
75 ms |
9048 KB |
Output is correct |
15 |
Correct |
43 ms |
9280 KB |
Output is correct |
16 |
Correct |
29 ms |
9564 KB |
Output is correct |
17 |
Correct |
51 ms |
9224 KB |
Output is correct |
18 |
Correct |
45 ms |
9052 KB |
Output is correct |
19 |
Correct |
43 ms |
9048 KB |
Output is correct |
20 |
Correct |
42 ms |
9556 KB |
Output is correct |
21 |
Correct |
30 ms |
9304 KB |
Output is correct |
22 |
Correct |
30 ms |
9708 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1715 ms |
64452 KB |
Output is correct |
2 |
Correct |
870 ms |
80608 KB |
Output is correct |
3 |
Correct |
829 ms |
80724 KB |
Output is correct |
4 |
Correct |
760 ms |
80528 KB |
Output is correct |
5 |
Correct |
773 ms |
80608 KB |
Output is correct |
6 |
Correct |
734 ms |
80416 KB |
Output is correct |
7 |
Correct |
775 ms |
80356 KB |
Output is correct |
8 |
Correct |
818 ms |
80712 KB |
Output is correct |
9 |
Correct |
816 ms |
80464 KB |
Output is correct |
10 |
Correct |
772 ms |
80800 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
59 ms |
8796 KB |
Output is correct |
2 |
Correct |
122 ms |
15956 KB |
Output is correct |
3 |
Correct |
767 ms |
80548 KB |
Output is correct |
4 |
Correct |
1667 ms |
80616 KB |
Output is correct |
5 |
Correct |
707 ms |
88060 KB |
Output is correct |
6 |
Correct |
1746 ms |
131408 KB |
Output is correct |
7 |
Correct |
757 ms |
82984 KB |
Output is correct |
8 |
Correct |
816 ms |
80724 KB |
Output is correct |
9 |
Correct |
784 ms |
80752 KB |
Output is correct |
10 |
Correct |
795 ms |
85284 KB |
Output is correct |
11 |
Correct |
812 ms |
102644 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
43 ms |
9652 KB |
Output is correct |
2 |
Correct |
79 ms |
9544 KB |
Output is correct |
3 |
Correct |
129 ms |
9680 KB |
Output is correct |
4 |
Correct |
259 ms |
9676 KB |
Output is correct |
5 |
Correct |
324 ms |
11024 KB |
Output is correct |
6 |
Correct |
1170 ms |
89208 KB |
Output is correct |
7 |
Correct |
1375 ms |
89360 KB |
Output is correct |
8 |
Correct |
1136 ms |
89232 KB |
Output is correct |
9 |
Correct |
2312 ms |
89360 KB |
Output is correct |
10 |
Correct |
1072 ms |
89100 KB |
Output is correct |
11 |
Correct |
1078 ms |
89616 KB |
Output is correct |
12 |
Correct |
1022 ms |
89608 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
12 ms |
8540 KB |
Output is correct |
2 |
Correct |
16 ms |
8720 KB |
Output is correct |
3 |
Correct |
30 ms |
8540 KB |
Output is correct |
4 |
Correct |
16 ms |
8720 KB |
Output is correct |
5 |
Correct |
14 ms |
8540 KB |
Output is correct |
6 |
Correct |
24 ms |
8744 KB |
Output is correct |
7 |
Correct |
31 ms |
8712 KB |
Output is correct |
8 |
Correct |
22 ms |
8540 KB |
Output is correct |
9 |
Correct |
22 ms |
8720 KB |
Output is correct |
10 |
Correct |
25 ms |
8536 KB |
Output is correct |
11 |
Correct |
23 ms |
8536 KB |
Output is correct |
12 |
Correct |
14 ms |
8540 KB |
Output is correct |
13 |
Correct |
60 ms |
8796 KB |
Output is correct |
14 |
Correct |
75 ms |
9048 KB |
Output is correct |
15 |
Correct |
43 ms |
9280 KB |
Output is correct |
16 |
Correct |
29 ms |
9564 KB |
Output is correct |
17 |
Correct |
51 ms |
9224 KB |
Output is correct |
18 |
Correct |
45 ms |
9052 KB |
Output is correct |
19 |
Correct |
43 ms |
9048 KB |
Output is correct |
20 |
Correct |
42 ms |
9556 KB |
Output is correct |
21 |
Correct |
30 ms |
9304 KB |
Output is correct |
22 |
Correct |
30 ms |
9708 KB |
Output is correct |
23 |
Correct |
1715 ms |
64452 KB |
Output is correct |
24 |
Correct |
870 ms |
80608 KB |
Output is correct |
25 |
Correct |
829 ms |
80724 KB |
Output is correct |
26 |
Correct |
760 ms |
80528 KB |
Output is correct |
27 |
Correct |
773 ms |
80608 KB |
Output is correct |
28 |
Correct |
734 ms |
80416 KB |
Output is correct |
29 |
Correct |
775 ms |
80356 KB |
Output is correct |
30 |
Correct |
818 ms |
80712 KB |
Output is correct |
31 |
Correct |
816 ms |
80464 KB |
Output is correct |
32 |
Correct |
772 ms |
80800 KB |
Output is correct |
33 |
Correct |
59 ms |
8796 KB |
Output is correct |
34 |
Correct |
122 ms |
15956 KB |
Output is correct |
35 |
Correct |
767 ms |
80548 KB |
Output is correct |
36 |
Correct |
1667 ms |
80616 KB |
Output is correct |
37 |
Correct |
707 ms |
88060 KB |
Output is correct |
38 |
Correct |
1746 ms |
131408 KB |
Output is correct |
39 |
Correct |
757 ms |
82984 KB |
Output is correct |
40 |
Correct |
816 ms |
80724 KB |
Output is correct |
41 |
Correct |
784 ms |
80752 KB |
Output is correct |
42 |
Correct |
795 ms |
85284 KB |
Output is correct |
43 |
Correct |
812 ms |
102644 KB |
Output is correct |
44 |
Correct |
43 ms |
9652 KB |
Output is correct |
45 |
Correct |
79 ms |
9544 KB |
Output is correct |
46 |
Correct |
129 ms |
9680 KB |
Output is correct |
47 |
Correct |
259 ms |
9676 KB |
Output is correct |
48 |
Correct |
324 ms |
11024 KB |
Output is correct |
49 |
Correct |
1170 ms |
89208 KB |
Output is correct |
50 |
Correct |
1375 ms |
89360 KB |
Output is correct |
51 |
Correct |
1136 ms |
89232 KB |
Output is correct |
52 |
Correct |
2312 ms |
89360 KB |
Output is correct |
53 |
Correct |
1072 ms |
89100 KB |
Output is correct |
54 |
Correct |
1078 ms |
89616 KB |
Output is correct |
55 |
Correct |
1022 ms |
89608 KB |
Output is correct |
56 |
Correct |
107 ms |
10192 KB |
Output is correct |
57 |
Correct |
265 ms |
10548 KB |
Output is correct |
58 |
Correct |
408 ms |
10696 KB |
Output is correct |
59 |
Correct |
1479 ms |
81200 KB |
Output is correct |
60 |
Correct |
2744 ms |
81404 KB |
Output is correct |
61 |
Correct |
1352 ms |
81576 KB |
Output is correct |
62 |
Correct |
1157 ms |
85448 KB |
Output is correct |
63 |
Correct |
2606 ms |
84152 KB |
Output is correct |
64 |
Correct |
1586 ms |
82380 KB |
Output is correct |
65 |
Correct |
1433 ms |
81668 KB |
Output is correct |
66 |
Correct |
1548 ms |
81492 KB |
Output is correct |
67 |
Correct |
1594 ms |
86048 KB |
Output is correct |
68 |
Correct |
1251 ms |
95872 KB |
Output is correct |
69 |
Correct |
2439 ms |
105008 KB |
Output is correct |