#include "seats.h"
#include<bits/stdc++.h>
using namespace std;
const int N = 1000005;
int n, m, k;
int posx[N], posy[N];
int num[N];
int minv[2100000], minc[2100000], lazy[2100000]; // initial values are 0, thus, minv is 0 for every val;
int a[5];
void build(int id, int l, int r);
int get(int x, int y);
void supd(int id, int l, int r, int ll, int rr, int val);
void upd(int x, int y, int v);
void change(int x, int y, int v);
void give_initial_chart(int H, int W, std::vector<int> R, std::vector<int> C) {
n = H;
m = W;
k = H * W;
build(1, 0, k - 1); // initially every val is 0;
for (int i = 0; i < k ; i++) {
posy[i] = R[i];
posx[i] = C[i];
num[posy[i]*m+posx[i]]=i;
}
for (int i = 0; i <= n; i++) {
for (int j = 0; j <= m; j++) {
upd(j, i, 1);
}
}
}
int swap_seats(int a, int b) {
change(posx[a], posy[a], b);
change(posx[b], posy[b], a);
swap(posx[a], posx[b]);
swap(posy[a], posy[b]);
return minc[1];
}
void change(int x, int y, int v) {
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 2; j++) {
upd(x+i, y+j, -1);
}
}
num[y * m + x] = v;
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 2; j++) {
upd(x+i, y+j, 1);
}
}
}
void build(int id, int l, int r) {
minc[id] = r - l + 1;
if (r == l) return;
int mid = (l + r) / 2;
build(2 * id, l, mid);
build(2 * id + 1, mid + 1, r);
}
int get(int x, int y) {
if (x < 0 || x >= m || y < 0 || y >= n) return k;
return num[y * m + x];
}
void supd(int id, int l, int r, int ll, int rr, int v) {
if (l > rr || r < ll) return;
if (ll <= l && r <= rr) {
lazy[id] += v;
minv[id] += v;
return;
}
int mid = (l + r) / 2;
supd(2*id, l, mid, ll, rr, v);
supd(2*id + 1, mid + 1, r, ll, rr, v);
if (minv[2*id] > minv[2*id+1]) {
minv[id] = minv[2*id+1];
minc[id] = minc[2*id+1];
}
if (minv[2*id] < minv[2*id+1]) {
minv[id] = minv[2*id];
minc[id] = minc[2*id];
}
if (minv[2*id] == minv[2*id + 1]) {
minv[id] = minv[2*id];
minc[id] = minc[2*id] + minc[2*id + 1];
}
minv[id] += lazy[id];
}
void upd(int x, int y, int v) {
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 2; j++) {
a[2 * i + j] = get(x - i, y - j);
}
}
sort (a, a + 4);
if (a[0] < a[1]) supd(1, 0, k - 1, a[0], a[1] - 1, v);
if (a[2] < a[3]) supd(1, 0, k - 1, a[2], a[3] - 1, v);
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
18 ms |
504 KB |
Output is correct |
2 |
Correct |
23 ms |
504 KB |
Output is correct |
3 |
Correct |
35 ms |
504 KB |
Output is correct |
4 |
Correct |
22 ms |
504 KB |
Output is correct |
5 |
Correct |
19 ms |
504 KB |
Output is correct |
6 |
Correct |
31 ms |
504 KB |
Output is correct |
7 |
Correct |
33 ms |
504 KB |
Output is correct |
8 |
Correct |
30 ms |
632 KB |
Output is correct |
9 |
Correct |
30 ms |
632 KB |
Output is correct |
10 |
Correct |
33 ms |
632 KB |
Output is correct |
11 |
Correct |
30 ms |
504 KB |
Output is correct |
12 |
Correct |
21 ms |
504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
18 ms |
504 KB |
Output is correct |
2 |
Correct |
23 ms |
504 KB |
Output is correct |
3 |
Correct |
35 ms |
504 KB |
Output is correct |
4 |
Correct |
22 ms |
504 KB |
Output is correct |
5 |
Correct |
19 ms |
504 KB |
Output is correct |
6 |
Correct |
31 ms |
504 KB |
Output is correct |
7 |
Correct |
33 ms |
504 KB |
Output is correct |
8 |
Correct |
30 ms |
632 KB |
Output is correct |
9 |
Correct |
30 ms |
632 KB |
Output is correct |
10 |
Correct |
33 ms |
632 KB |
Output is correct |
11 |
Correct |
30 ms |
504 KB |
Output is correct |
12 |
Correct |
21 ms |
504 KB |
Output is correct |
13 |
Correct |
75 ms |
1272 KB |
Output is correct |
14 |
Correct |
88 ms |
1272 KB |
Output is correct |
15 |
Correct |
51 ms |
1272 KB |
Output is correct |
16 |
Correct |
37 ms |
1272 KB |
Output is correct |
17 |
Correct |
64 ms |
1272 KB |
Output is correct |
18 |
Correct |
64 ms |
1272 KB |
Output is correct |
19 |
Correct |
54 ms |
1272 KB |
Output is correct |
20 |
Correct |
49 ms |
1272 KB |
Output is correct |
21 |
Correct |
39 ms |
1276 KB |
Output is correct |
22 |
Correct |
39 ms |
1272 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2196 ms |
52600 KB |
Output is correct |
2 |
Correct |
1218 ms |
52600 KB |
Output is correct |
3 |
Correct |
1112 ms |
52728 KB |
Output is correct |
4 |
Correct |
953 ms |
52664 KB |
Output is correct |
5 |
Correct |
1012 ms |
52600 KB |
Output is correct |
6 |
Correct |
958 ms |
52600 KB |
Output is correct |
7 |
Correct |
1036 ms |
52624 KB |
Output is correct |
8 |
Correct |
1096 ms |
52628 KB |
Output is correct |
9 |
Correct |
1117 ms |
52600 KB |
Output is correct |
10 |
Correct |
1064 ms |
52600 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
71 ms |
1272 KB |
Output is correct |
2 |
Correct |
176 ms |
6136 KB |
Output is correct |
3 |
Correct |
968 ms |
52600 KB |
Output is correct |
4 |
Correct |
2236 ms |
52600 KB |
Output is correct |
5 |
Correct |
901 ms |
50556 KB |
Output is correct |
6 |
Correct |
1893 ms |
68600 KB |
Output is correct |
7 |
Correct |
963 ms |
67964 KB |
Output is correct |
8 |
Correct |
1162 ms |
68344 KB |
Output is correct |
9 |
Correct |
1161 ms |
67704 KB |
Output is correct |
10 |
Correct |
1103 ms |
68440 KB |
Output is correct |
11 |
Correct |
986 ms |
67576 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
69 ms |
1524 KB |
Output is correct |
2 |
Correct |
103 ms |
1524 KB |
Output is correct |
3 |
Correct |
160 ms |
2164 KB |
Output is correct |
4 |
Correct |
223 ms |
2164 KB |
Output is correct |
5 |
Correct |
348 ms |
2808 KB |
Output is correct |
6 |
Correct |
1390 ms |
68472 KB |
Output is correct |
7 |
Correct |
1606 ms |
69368 KB |
Output is correct |
8 |
Correct |
1359 ms |
67448 KB |
Output is correct |
9 |
Correct |
2637 ms |
69592 KB |
Output is correct |
10 |
Correct |
1349 ms |
68344 KB |
Output is correct |
11 |
Correct |
1339 ms |
68472 KB |
Output is correct |
12 |
Correct |
1262 ms |
67396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
18 ms |
504 KB |
Output is correct |
2 |
Correct |
23 ms |
504 KB |
Output is correct |
3 |
Correct |
35 ms |
504 KB |
Output is correct |
4 |
Correct |
22 ms |
504 KB |
Output is correct |
5 |
Correct |
19 ms |
504 KB |
Output is correct |
6 |
Correct |
31 ms |
504 KB |
Output is correct |
7 |
Correct |
33 ms |
504 KB |
Output is correct |
8 |
Correct |
30 ms |
632 KB |
Output is correct |
9 |
Correct |
30 ms |
632 KB |
Output is correct |
10 |
Correct |
33 ms |
632 KB |
Output is correct |
11 |
Correct |
30 ms |
504 KB |
Output is correct |
12 |
Correct |
21 ms |
504 KB |
Output is correct |
13 |
Correct |
75 ms |
1272 KB |
Output is correct |
14 |
Correct |
88 ms |
1272 KB |
Output is correct |
15 |
Correct |
51 ms |
1272 KB |
Output is correct |
16 |
Correct |
37 ms |
1272 KB |
Output is correct |
17 |
Correct |
64 ms |
1272 KB |
Output is correct |
18 |
Correct |
64 ms |
1272 KB |
Output is correct |
19 |
Correct |
54 ms |
1272 KB |
Output is correct |
20 |
Correct |
49 ms |
1272 KB |
Output is correct |
21 |
Correct |
39 ms |
1276 KB |
Output is correct |
22 |
Correct |
39 ms |
1272 KB |
Output is correct |
23 |
Correct |
2196 ms |
52600 KB |
Output is correct |
24 |
Correct |
1218 ms |
52600 KB |
Output is correct |
25 |
Correct |
1112 ms |
52728 KB |
Output is correct |
26 |
Correct |
953 ms |
52664 KB |
Output is correct |
27 |
Correct |
1012 ms |
52600 KB |
Output is correct |
28 |
Correct |
958 ms |
52600 KB |
Output is correct |
29 |
Correct |
1036 ms |
52624 KB |
Output is correct |
30 |
Correct |
1096 ms |
52628 KB |
Output is correct |
31 |
Correct |
1117 ms |
52600 KB |
Output is correct |
32 |
Correct |
1064 ms |
52600 KB |
Output is correct |
33 |
Correct |
71 ms |
1272 KB |
Output is correct |
34 |
Correct |
176 ms |
6136 KB |
Output is correct |
35 |
Correct |
968 ms |
52600 KB |
Output is correct |
36 |
Correct |
2236 ms |
52600 KB |
Output is correct |
37 |
Correct |
901 ms |
50556 KB |
Output is correct |
38 |
Correct |
1893 ms |
68600 KB |
Output is correct |
39 |
Correct |
963 ms |
67964 KB |
Output is correct |
40 |
Correct |
1162 ms |
68344 KB |
Output is correct |
41 |
Correct |
1161 ms |
67704 KB |
Output is correct |
42 |
Correct |
1103 ms |
68440 KB |
Output is correct |
43 |
Correct |
986 ms |
67576 KB |
Output is correct |
44 |
Correct |
69 ms |
1524 KB |
Output is correct |
45 |
Correct |
103 ms |
1524 KB |
Output is correct |
46 |
Correct |
160 ms |
2164 KB |
Output is correct |
47 |
Correct |
223 ms |
2164 KB |
Output is correct |
48 |
Correct |
348 ms |
2808 KB |
Output is correct |
49 |
Correct |
1390 ms |
68472 KB |
Output is correct |
50 |
Correct |
1606 ms |
69368 KB |
Output is correct |
51 |
Correct |
1359 ms |
67448 KB |
Output is correct |
52 |
Correct |
2637 ms |
69592 KB |
Output is correct |
53 |
Correct |
1349 ms |
68344 KB |
Output is correct |
54 |
Correct |
1339 ms |
68472 KB |
Output is correct |
55 |
Correct |
1262 ms |
67396 KB |
Output is correct |
56 |
Correct |
131 ms |
2164 KB |
Output is correct |
57 |
Correct |
315 ms |
2164 KB |
Output is correct |
58 |
Correct |
518 ms |
2860 KB |
Output is correct |
59 |
Correct |
1890 ms |
69276 KB |
Output is correct |
60 |
Correct |
3380 ms |
69364 KB |
Output is correct |
61 |
Correct |
1705 ms |
69496 KB |
Output is correct |
62 |
Correct |
1399 ms |
67444 KB |
Output is correct |
63 |
Correct |
3139 ms |
69376 KB |
Output is correct |
64 |
Correct |
1955 ms |
69496 KB |
Output is correct |
65 |
Correct |
1742 ms |
69492 KB |
Output is correct |
66 |
Correct |
2023 ms |
68728 KB |
Output is correct |
67 |
Correct |
1928 ms |
69236 KB |
Output is correct |
68 |
Correct |
1490 ms |
68992 KB |
Output is correct |
69 |
Correct |
2780 ms |
69496 KB |
Output is correct |