class shoes {
private void change(int[] v) {
int n = v.length / 2;
int[] cnt = new int[n];
for(int i = 0; i < n; i++)
cnt[i] = 0;
for(int i = 0; i < 2*n; i++)
if(v[i] > 0)
cnt[v[i] - 1]++;
for(int i = 1; i < n; i++)
cnt[i] += cnt[i-1];
int[] cntl = new int[n];
int[] cntr = new int[n];
for(int i = 0; i < n; i++) {
cntl[i] = cnt[i];
cntr[i] = cnt[i];
}
for(int i = 0; i < 2*n; i++)
if(v[i] > 0)
v[i] = (--cntr[v[i] - 1]) + 1;
else
v[i] = -((--cntl[-v[i] - 1]) + 1);
}
public long count_swaps(int[] in) {
change(in);
int n = in.length / 2;
int where[] = new int[n + 1];
for (int i = 1; i <= n; ++i)
where[i] = -1;
for (int i = 0; i != 2 * n; ++i)
if (where[Math.abs(in[i])] == -1)
where[Math.abs(in[i])] = i;
long ans = 0;
int fenw[] = new int[2 * n];
for (int i = 0; i != 2 * n; ++i)
fenw[i] = (i + 1) - (i & (i + 1));
for (int pos = 2 * n - 1; pos >= 0; --pos) {
if (where[Math.abs(in[pos])] == pos)
continue;
int i = where[Math.abs(in[pos])];
int dist = 0;
for (int p = pos; p >= 0; p = (p & (p + 1)) - 1)
dist += fenw[p];
for (int p = i; p >= 0; p = (p & (p + 1)) - 1)
dist -= fenw[p];
if (in[pos] > 0)
--dist;
ans += dist;
for (int p = i; p < 2 * n; p = p | (p + 1))
fenw[p] -= 1;
}
return ans;
}
// public static void main(String[] argv) {
// shoe sh = new shoe();
// int[] test = new int[4];
// test[0] = -2;
// test[1] = -1;
// test[2] = 1;
// test[3] = 2;
// sh.count_swaps(test);
// }
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
87 ms |
9596 KB |
Output is correct |
2 |
Correct |
88 ms |
9496 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
87 ms |
9596 KB |
Output is correct |
2 |
Correct |
88 ms |
9496 KB |
Output is correct |
3 |
Correct |
85 ms |
9648 KB |
Output is correct |
4 |
Correct |
89 ms |
9668 KB |
Output is correct |
5 |
Correct |
86 ms |
9680 KB |
Output is correct |
6 |
Correct |
88 ms |
9616 KB |
Output is correct |
7 |
Correct |
85 ms |
9440 KB |
Output is correct |
8 |
Correct |
87 ms |
9456 KB |
Output is correct |
9 |
Correct |
86 ms |
9336 KB |
Output is correct |
10 |
Correct |
87 ms |
9464 KB |
Output is correct |
11 |
Correct |
84 ms |
9676 KB |
Output is correct |
12 |
Correct |
85 ms |
9624 KB |
Output is correct |
13 |
Correct |
84 ms |
9744 KB |
Output is correct |
14 |
Correct |
86 ms |
9596 KB |
Output is correct |
15 |
Correct |
85 ms |
9616 KB |
Output is correct |
16 |
Correct |
87 ms |
9500 KB |
Output is correct |
17 |
Correct |
89 ms |
9480 KB |
Output is correct |
18 |
Correct |
85 ms |
9720 KB |
Output is correct |
19 |
Correct |
86 ms |
9608 KB |
Output is correct |
20 |
Correct |
86 ms |
9484 KB |
Output is correct |
21 |
Correct |
86 ms |
9740 KB |
Output is correct |
22 |
Correct |
87 ms |
9432 KB |
Output is correct |
23 |
Correct |
84 ms |
9656 KB |
Output is correct |
24 |
Correct |
84 ms |
9580 KB |
Output is correct |
25 |
Correct |
85 ms |
9716 KB |
Output is correct |
26 |
Correct |
85 ms |
9596 KB |
Output is correct |
27 |
Correct |
86 ms |
9620 KB |
Output is correct |
28 |
Correct |
85 ms |
9756 KB |
Output is correct |
29 |
Correct |
87 ms |
9676 KB |
Output is correct |
30 |
Correct |
86 ms |
9624 KB |
Output is correct |
31 |
Correct |
86 ms |
9652 KB |
Output is correct |
32 |
Correct |
86 ms |
9760 KB |
Output is correct |
33 |
Correct |
90 ms |
9488 KB |
Output is correct |
34 |
Correct |
82 ms |
9480 KB |
Output is correct |
35 |
Correct |
85 ms |
9400 KB |
Output is correct |
36 |
Correct |
85 ms |
9540 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
87 ms |
9596 KB |
Output is correct |
2 |
Correct |
88 ms |
9496 KB |
Output is correct |
3 |
Correct |
83 ms |
9560 KB |
Output is correct |
4 |
Correct |
85 ms |
9408 KB |
Output is correct |
5 |
Correct |
85 ms |
9508 KB |
Output is correct |
6 |
Correct |
85 ms |
9488 KB |
Output is correct |
7 |
Correct |
86 ms |
9440 KB |
Output is correct |
8 |
Correct |
84 ms |
9548 KB |
Output is correct |
9 |
Correct |
89 ms |
9612 KB |
Output is correct |
10 |
Correct |
90 ms |
9500 KB |
Output is correct |
11 |
Correct |
84 ms |
9596 KB |
Output is correct |
12 |
Correct |
84 ms |
9484 KB |
Output is correct |
13 |
Correct |
85 ms |
9396 KB |
Output is correct |
14 |
Correct |
92 ms |
9504 KB |
Output is correct |
15 |
Correct |
87 ms |
9592 KB |
Output is correct |
16 |
Correct |
86 ms |
9604 KB |
Output is correct |
17 |
Correct |
88 ms |
9576 KB |
Output is correct |
18 |
Correct |
92 ms |
9636 KB |
Output is correct |
19 |
Correct |
93 ms |
9836 KB |
Output is correct |
20 |
Correct |
117 ms |
10996 KB |
Output is correct |
21 |
Correct |
125 ms |
10656 KB |
Output is correct |
22 |
Correct |
202 ms |
15148 KB |
Output is correct |
23 |
Correct |
197 ms |
14784 KB |
Output is correct |
24 |
Correct |
205 ms |
14112 KB |
Output is correct |
25 |
Correct |
216 ms |
14956 KB |
Output is correct |
26 |
Correct |
209 ms |
14236 KB |
Output is correct |
27 |
Correct |
188 ms |
14244 KB |
Output is correct |
28 |
Correct |
214 ms |
14788 KB |
Output is correct |
29 |
Correct |
216 ms |
14236 KB |
Output is correct |
30 |
Correct |
218 ms |
15128 KB |
Output is correct |
31 |
Correct |
210 ms |
14496 KB |
Output is correct |
32 |
Correct |
212 ms |
14732 KB |
Output is correct |
33 |
Correct |
219 ms |
14364 KB |
Output is correct |
34 |
Correct |
216 ms |
14884 KB |
Output is correct |
35 |
Correct |
84 ms |
9468 KB |
Output is correct |
36 |
Correct |
88 ms |
9540 KB |
Output is correct |
37 |
Correct |
263 ms |
16512 KB |
Output is correct |
38 |
Correct |
223 ms |
14968 KB |
Output is correct |
39 |
Correct |
225 ms |
15124 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
86 ms |
9536 KB |
Output is correct |
2 |
Correct |
88 ms |
9596 KB |
Output is correct |
3 |
Correct |
89 ms |
9592 KB |
Output is correct |
4 |
Correct |
95 ms |
9640 KB |
Output is correct |
5 |
Correct |
237 ms |
15096 KB |
Output is correct |
6 |
Correct |
228 ms |
14884 KB |
Output is correct |
7 |
Correct |
220 ms |
15028 KB |
Output is correct |
8 |
Correct |
207 ms |
14908 KB |
Output is correct |
9 |
Correct |
240 ms |
15432 KB |
Output is correct |
10 |
Correct |
223 ms |
14432 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
87 ms |
9596 KB |
Output is correct |
2 |
Correct |
88 ms |
9496 KB |
Output is correct |
3 |
Correct |
85 ms |
9648 KB |
Output is correct |
4 |
Correct |
89 ms |
9668 KB |
Output is correct |
5 |
Correct |
86 ms |
9680 KB |
Output is correct |
6 |
Correct |
88 ms |
9616 KB |
Output is correct |
7 |
Correct |
85 ms |
9440 KB |
Output is correct |
8 |
Correct |
87 ms |
9456 KB |
Output is correct |
9 |
Correct |
86 ms |
9336 KB |
Output is correct |
10 |
Correct |
87 ms |
9464 KB |
Output is correct |
11 |
Correct |
84 ms |
9676 KB |
Output is correct |
12 |
Correct |
85 ms |
9624 KB |
Output is correct |
13 |
Correct |
84 ms |
9744 KB |
Output is correct |
14 |
Correct |
86 ms |
9596 KB |
Output is correct |
15 |
Correct |
85 ms |
9616 KB |
Output is correct |
16 |
Correct |
87 ms |
9500 KB |
Output is correct |
17 |
Correct |
89 ms |
9480 KB |
Output is correct |
18 |
Correct |
85 ms |
9720 KB |
Output is correct |
19 |
Correct |
86 ms |
9608 KB |
Output is correct |
20 |
Correct |
86 ms |
9484 KB |
Output is correct |
21 |
Correct |
86 ms |
9740 KB |
Output is correct |
22 |
Correct |
87 ms |
9432 KB |
Output is correct |
23 |
Correct |
84 ms |
9656 KB |
Output is correct |
24 |
Correct |
84 ms |
9580 KB |
Output is correct |
25 |
Correct |
85 ms |
9716 KB |
Output is correct |
26 |
Correct |
85 ms |
9596 KB |
Output is correct |
27 |
Correct |
86 ms |
9620 KB |
Output is correct |
28 |
Correct |
85 ms |
9756 KB |
Output is correct |
29 |
Correct |
87 ms |
9676 KB |
Output is correct |
30 |
Correct |
86 ms |
9624 KB |
Output is correct |
31 |
Correct |
86 ms |
9652 KB |
Output is correct |
32 |
Correct |
86 ms |
9760 KB |
Output is correct |
33 |
Correct |
90 ms |
9488 KB |
Output is correct |
34 |
Correct |
82 ms |
9480 KB |
Output is correct |
35 |
Correct |
85 ms |
9400 KB |
Output is correct |
36 |
Correct |
85 ms |
9540 KB |
Output is correct |
37 |
Correct |
88 ms |
9436 KB |
Output is correct |
38 |
Correct |
88 ms |
9412 KB |
Output is correct |
39 |
Correct |
88 ms |
9480 KB |
Output is correct |
40 |
Correct |
88 ms |
9540 KB |
Output is correct |
41 |
Correct |
93 ms |
9980 KB |
Output is correct |
42 |
Correct |
93 ms |
9728 KB |
Output is correct |
43 |
Correct |
92 ms |
9708 KB |
Output is correct |
44 |
Correct |
97 ms |
9876 KB |
Output is correct |
45 |
Correct |
89 ms |
9612 KB |
Output is correct |
46 |
Correct |
93 ms |
9952 KB |
Output is correct |
47 |
Correct |
99 ms |
9752 KB |
Output is correct |
48 |
Correct |
92 ms |
9652 KB |
Output is correct |
49 |
Correct |
94 ms |
9576 KB |
Output is correct |
50 |
Correct |
93 ms |
9568 KB |
Output is correct |
51 |
Correct |
97 ms |
9588 KB |
Output is correct |
52 |
Correct |
91 ms |
9592 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
87 ms |
9596 KB |
Output is correct |
2 |
Correct |
88 ms |
9496 KB |
Output is correct |
3 |
Correct |
85 ms |
9648 KB |
Output is correct |
4 |
Correct |
89 ms |
9668 KB |
Output is correct |
5 |
Correct |
86 ms |
9680 KB |
Output is correct |
6 |
Correct |
88 ms |
9616 KB |
Output is correct |
7 |
Correct |
85 ms |
9440 KB |
Output is correct |
8 |
Correct |
87 ms |
9456 KB |
Output is correct |
9 |
Correct |
86 ms |
9336 KB |
Output is correct |
10 |
Correct |
87 ms |
9464 KB |
Output is correct |
11 |
Correct |
84 ms |
9676 KB |
Output is correct |
12 |
Correct |
85 ms |
9624 KB |
Output is correct |
13 |
Correct |
84 ms |
9744 KB |
Output is correct |
14 |
Correct |
86 ms |
9596 KB |
Output is correct |
15 |
Correct |
85 ms |
9616 KB |
Output is correct |
16 |
Correct |
87 ms |
9500 KB |
Output is correct |
17 |
Correct |
89 ms |
9480 KB |
Output is correct |
18 |
Correct |
85 ms |
9720 KB |
Output is correct |
19 |
Correct |
86 ms |
9608 KB |
Output is correct |
20 |
Correct |
86 ms |
9484 KB |
Output is correct |
21 |
Correct |
86 ms |
9740 KB |
Output is correct |
22 |
Correct |
87 ms |
9432 KB |
Output is correct |
23 |
Correct |
84 ms |
9656 KB |
Output is correct |
24 |
Correct |
84 ms |
9580 KB |
Output is correct |
25 |
Correct |
85 ms |
9716 KB |
Output is correct |
26 |
Correct |
85 ms |
9596 KB |
Output is correct |
27 |
Correct |
86 ms |
9620 KB |
Output is correct |
28 |
Correct |
85 ms |
9756 KB |
Output is correct |
29 |
Correct |
87 ms |
9676 KB |
Output is correct |
30 |
Correct |
86 ms |
9624 KB |
Output is correct |
31 |
Correct |
86 ms |
9652 KB |
Output is correct |
32 |
Correct |
86 ms |
9760 KB |
Output is correct |
33 |
Correct |
90 ms |
9488 KB |
Output is correct |
34 |
Correct |
82 ms |
9480 KB |
Output is correct |
35 |
Correct |
85 ms |
9400 KB |
Output is correct |
36 |
Correct |
85 ms |
9540 KB |
Output is correct |
37 |
Correct |
83 ms |
9560 KB |
Output is correct |
38 |
Correct |
85 ms |
9408 KB |
Output is correct |
39 |
Correct |
85 ms |
9508 KB |
Output is correct |
40 |
Correct |
85 ms |
9488 KB |
Output is correct |
41 |
Correct |
86 ms |
9440 KB |
Output is correct |
42 |
Correct |
84 ms |
9548 KB |
Output is correct |
43 |
Correct |
89 ms |
9612 KB |
Output is correct |
44 |
Correct |
90 ms |
9500 KB |
Output is correct |
45 |
Correct |
84 ms |
9596 KB |
Output is correct |
46 |
Correct |
84 ms |
9484 KB |
Output is correct |
47 |
Correct |
85 ms |
9396 KB |
Output is correct |
48 |
Correct |
92 ms |
9504 KB |
Output is correct |
49 |
Correct |
87 ms |
9592 KB |
Output is correct |
50 |
Correct |
86 ms |
9604 KB |
Output is correct |
51 |
Correct |
88 ms |
9576 KB |
Output is correct |
52 |
Correct |
92 ms |
9636 KB |
Output is correct |
53 |
Correct |
93 ms |
9836 KB |
Output is correct |
54 |
Correct |
117 ms |
10996 KB |
Output is correct |
55 |
Correct |
125 ms |
10656 KB |
Output is correct |
56 |
Correct |
202 ms |
15148 KB |
Output is correct |
57 |
Correct |
197 ms |
14784 KB |
Output is correct |
58 |
Correct |
205 ms |
14112 KB |
Output is correct |
59 |
Correct |
216 ms |
14956 KB |
Output is correct |
60 |
Correct |
209 ms |
14236 KB |
Output is correct |
61 |
Correct |
188 ms |
14244 KB |
Output is correct |
62 |
Correct |
214 ms |
14788 KB |
Output is correct |
63 |
Correct |
216 ms |
14236 KB |
Output is correct |
64 |
Correct |
218 ms |
15128 KB |
Output is correct |
65 |
Correct |
210 ms |
14496 KB |
Output is correct |
66 |
Correct |
212 ms |
14732 KB |
Output is correct |
67 |
Correct |
219 ms |
14364 KB |
Output is correct |
68 |
Correct |
216 ms |
14884 KB |
Output is correct |
69 |
Correct |
84 ms |
9468 KB |
Output is correct |
70 |
Correct |
88 ms |
9540 KB |
Output is correct |
71 |
Correct |
263 ms |
16512 KB |
Output is correct |
72 |
Correct |
223 ms |
14968 KB |
Output is correct |
73 |
Correct |
225 ms |
15124 KB |
Output is correct |
74 |
Correct |
86 ms |
9536 KB |
Output is correct |
75 |
Correct |
88 ms |
9596 KB |
Output is correct |
76 |
Correct |
89 ms |
9592 KB |
Output is correct |
77 |
Correct |
95 ms |
9640 KB |
Output is correct |
78 |
Correct |
237 ms |
15096 KB |
Output is correct |
79 |
Correct |
228 ms |
14884 KB |
Output is correct |
80 |
Correct |
220 ms |
15028 KB |
Output is correct |
81 |
Correct |
207 ms |
14908 KB |
Output is correct |
82 |
Correct |
240 ms |
15432 KB |
Output is correct |
83 |
Correct |
223 ms |
14432 KB |
Output is correct |
84 |
Correct |
88 ms |
9436 KB |
Output is correct |
85 |
Correct |
88 ms |
9412 KB |
Output is correct |
86 |
Correct |
88 ms |
9480 KB |
Output is correct |
87 |
Correct |
88 ms |
9540 KB |
Output is correct |
88 |
Correct |
93 ms |
9980 KB |
Output is correct |
89 |
Correct |
93 ms |
9728 KB |
Output is correct |
90 |
Correct |
92 ms |
9708 KB |
Output is correct |
91 |
Correct |
97 ms |
9876 KB |
Output is correct |
92 |
Correct |
89 ms |
9612 KB |
Output is correct |
93 |
Correct |
93 ms |
9952 KB |
Output is correct |
94 |
Correct |
99 ms |
9752 KB |
Output is correct |
95 |
Correct |
92 ms |
9652 KB |
Output is correct |
96 |
Correct |
94 ms |
9576 KB |
Output is correct |
97 |
Correct |
93 ms |
9568 KB |
Output is correct |
98 |
Correct |
97 ms |
9588 KB |
Output is correct |
99 |
Correct |
91 ms |
9592 KB |
Output is correct |
100 |
Correct |
92 ms |
9764 KB |
Output is correct |
101 |
Correct |
122 ms |
11152 KB |
Output is correct |
102 |
Correct |
125 ms |
10904 KB |
Output is correct |
103 |
Correct |
239 ms |
14848 KB |
Output is correct |
104 |
Correct |
197 ms |
14180 KB |
Output is correct |
105 |
Correct |
218 ms |
14632 KB |
Output is correct |
106 |
Correct |
215 ms |
15008 KB |
Output is correct |
107 |
Correct |
202 ms |
14528 KB |
Output is correct |
108 |
Correct |
204 ms |
14756 KB |
Output is correct |
109 |
Correct |
231 ms |
13968 KB |
Output is correct |
110 |
Correct |
210 ms |
15088 KB |
Output is correct |
111 |
Correct |
222 ms |
14916 KB |
Output is correct |
112 |
Correct |
207 ms |
14180 KB |
Output is correct |
113 |
Correct |
226 ms |
15240 KB |
Output is correct |
114 |
Correct |
214 ms |
14740 KB |
Output is correct |
115 |
Correct |
234 ms |
14504 KB |
Output is correct |