#include "shoes.h"
// #include "grader.cpp"
#include <bits/stdc++.h>
using namespace std;
struct SegTree {
int size = 1;
vector<int> mins;
SegTree(int n){
while(size < n)size *= 2;
mins.resize(2 * size);
}
void set(int i, int x, int lx, int rx){
if(rx - lx == 1){
mins[x] = 1;
return;
}
int m = (lx + rx) >> 1;
if(i < m)set(i, 2 * x + 1, lx, m);
else set(i, 2 * x + 2, m, rx);
mins[x] = mins[2 * x + 1] + mins[2 * x + 2];
}
void set(int i){
set(i, 0, 0, size);
}
int sum(int l, int r, int x, int lx, int rx){
if(l <= lx and rx <= r)return mins[x];
if(r <= lx or rx <= l)return 0;
int m = (lx + rx) >> 1;
return sum(l, r, 2 * x + 1, lx, m) + sum(l, r, 2 * x + 2, m, rx);
}
int sum(int l, int r){
return sum(l, r, 0, 0, size);
}
void printtree(){
for(auto x : mins)cout<< x << ' ';
cout<<endl;
}
};
long long count_swaps(vector<int> a) {
long long n = a.size() / 2;
if(n == 1)return a[0] > 0;
vector<vector<int>> pos(2 * n + 1);
for(int i = 2 * n - 1; i >= 0; i --)
pos[a[i] + n].push_back(i);
long long ans = 0;
SegTree s(2 * n);
for(int i = 0; i < 2 * n; i ++){
if(a[i] != 0){
ans += pos[-a[i] + n].back() - i - s.sum(i, pos[-a[i] + n].back());
if(a[i] < 0)ans --;
s.set(pos[-a[i] + n].back());
s.set(i);
a[pos[-a[i] + n].back()] = 0;
pos[-a[i] + n].pop_back();
pos[a[i] + n].pop_back();
a[i] = 0;
}
}
return ans;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
304 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
300 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
0 ms |
296 KB |
Output is correct |
26 |
Correct |
1 ms |
300 KB |
Output is correct |
27 |
Correct |
1 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
0 ms |
296 KB |
Output is correct |
32 |
Correct |
1 ms |
212 KB |
Output is correct |
33 |
Correct |
1 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
212 KB |
Output is correct |
35 |
Correct |
1 ms |
212 KB |
Output is correct |
36 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
300 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
296 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
296 KB |
Output is correct |
15 |
Correct |
1 ms |
296 KB |
Output is correct |
16 |
Correct |
1 ms |
300 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
5 ms |
1460 KB |
Output is correct |
21 |
Correct |
5 ms |
1464 KB |
Output is correct |
22 |
Correct |
47 ms |
10672 KB |
Output is correct |
23 |
Correct |
44 ms |
10776 KB |
Output is correct |
24 |
Correct |
46 ms |
10792 KB |
Output is correct |
25 |
Correct |
52 ms |
10560 KB |
Output is correct |
26 |
Correct |
48 ms |
10784 KB |
Output is correct |
27 |
Correct |
40 ms |
10688 KB |
Output is correct |
28 |
Correct |
47 ms |
10804 KB |
Output is correct |
29 |
Correct |
53 ms |
10792 KB |
Output is correct |
30 |
Correct |
53 ms |
10700 KB |
Output is correct |
31 |
Correct |
52 ms |
10804 KB |
Output is correct |
32 |
Correct |
49 ms |
10692 KB |
Output is correct |
33 |
Correct |
48 ms |
10540 KB |
Output is correct |
34 |
Correct |
48 ms |
10784 KB |
Output is correct |
35 |
Correct |
1 ms |
300 KB |
Output is correct |
36 |
Correct |
0 ms |
212 KB |
Output is correct |
37 |
Correct |
48 ms |
10756 KB |
Output is correct |
38 |
Correct |
50 ms |
10804 KB |
Output is correct |
39 |
Correct |
47 ms |
10692 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
80 ms |
14880 KB |
Output is correct |
6 |
Correct |
63 ms |
10164 KB |
Output is correct |
7 |
Correct |
70 ms |
15000 KB |
Output is correct |
8 |
Correct |
57 ms |
9696 KB |
Output is correct |
9 |
Correct |
78 ms |
14972 KB |
Output is correct |
10 |
Correct |
63 ms |
11852 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
304 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
300 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
0 ms |
296 KB |
Output is correct |
26 |
Correct |
1 ms |
300 KB |
Output is correct |
27 |
Correct |
1 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
0 ms |
296 KB |
Output is correct |
32 |
Correct |
1 ms |
212 KB |
Output is correct |
33 |
Correct |
1 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
212 KB |
Output is correct |
35 |
Correct |
1 ms |
212 KB |
Output is correct |
36 |
Correct |
1 ms |
212 KB |
Output is correct |
37 |
Correct |
1 ms |
212 KB |
Output is correct |
38 |
Correct |
1 ms |
212 KB |
Output is correct |
39 |
Correct |
1 ms |
212 KB |
Output is correct |
40 |
Correct |
1 ms |
296 KB |
Output is correct |
41 |
Correct |
1 ms |
340 KB |
Output is correct |
42 |
Correct |
1 ms |
340 KB |
Output is correct |
43 |
Correct |
2 ms |
340 KB |
Output is correct |
44 |
Correct |
2 ms |
308 KB |
Output is correct |
45 |
Correct |
2 ms |
340 KB |
Output is correct |
46 |
Correct |
1 ms |
312 KB |
Output is correct |
47 |
Correct |
1 ms |
308 KB |
Output is correct |
48 |
Correct |
1 ms |
340 KB |
Output is correct |
49 |
Correct |
1 ms |
340 KB |
Output is correct |
50 |
Correct |
1 ms |
308 KB |
Output is correct |
51 |
Correct |
1 ms |
340 KB |
Output is correct |
52 |
Correct |
1 ms |
440 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
304 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
300 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
0 ms |
296 KB |
Output is correct |
26 |
Correct |
1 ms |
300 KB |
Output is correct |
27 |
Correct |
1 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
0 ms |
296 KB |
Output is correct |
32 |
Correct |
1 ms |
212 KB |
Output is correct |
33 |
Correct |
1 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
212 KB |
Output is correct |
35 |
Correct |
1 ms |
212 KB |
Output is correct |
36 |
Correct |
1 ms |
212 KB |
Output is correct |
37 |
Correct |
0 ms |
212 KB |
Output is correct |
38 |
Correct |
1 ms |
212 KB |
Output is correct |
39 |
Correct |
0 ms |
212 KB |
Output is correct |
40 |
Correct |
1 ms |
300 KB |
Output is correct |
41 |
Correct |
1 ms |
212 KB |
Output is correct |
42 |
Correct |
1 ms |
212 KB |
Output is correct |
43 |
Correct |
1 ms |
212 KB |
Output is correct |
44 |
Correct |
0 ms |
296 KB |
Output is correct |
45 |
Correct |
1 ms |
212 KB |
Output is correct |
46 |
Correct |
1 ms |
212 KB |
Output is correct |
47 |
Correct |
1 ms |
212 KB |
Output is correct |
48 |
Correct |
1 ms |
296 KB |
Output is correct |
49 |
Correct |
1 ms |
296 KB |
Output is correct |
50 |
Correct |
1 ms |
300 KB |
Output is correct |
51 |
Correct |
1 ms |
212 KB |
Output is correct |
52 |
Correct |
1 ms |
340 KB |
Output is correct |
53 |
Correct |
1 ms |
340 KB |
Output is correct |
54 |
Correct |
5 ms |
1460 KB |
Output is correct |
55 |
Correct |
5 ms |
1464 KB |
Output is correct |
56 |
Correct |
47 ms |
10672 KB |
Output is correct |
57 |
Correct |
44 ms |
10776 KB |
Output is correct |
58 |
Correct |
46 ms |
10792 KB |
Output is correct |
59 |
Correct |
52 ms |
10560 KB |
Output is correct |
60 |
Correct |
48 ms |
10784 KB |
Output is correct |
61 |
Correct |
40 ms |
10688 KB |
Output is correct |
62 |
Correct |
47 ms |
10804 KB |
Output is correct |
63 |
Correct |
53 ms |
10792 KB |
Output is correct |
64 |
Correct |
53 ms |
10700 KB |
Output is correct |
65 |
Correct |
52 ms |
10804 KB |
Output is correct |
66 |
Correct |
49 ms |
10692 KB |
Output is correct |
67 |
Correct |
48 ms |
10540 KB |
Output is correct |
68 |
Correct |
48 ms |
10784 KB |
Output is correct |
69 |
Correct |
1 ms |
300 KB |
Output is correct |
70 |
Correct |
0 ms |
212 KB |
Output is correct |
71 |
Correct |
48 ms |
10756 KB |
Output is correct |
72 |
Correct |
50 ms |
10804 KB |
Output is correct |
73 |
Correct |
47 ms |
10692 KB |
Output is correct |
74 |
Correct |
0 ms |
212 KB |
Output is correct |
75 |
Correct |
0 ms |
212 KB |
Output is correct |
76 |
Correct |
0 ms |
212 KB |
Output is correct |
77 |
Correct |
1 ms |
212 KB |
Output is correct |
78 |
Correct |
80 ms |
14880 KB |
Output is correct |
79 |
Correct |
63 ms |
10164 KB |
Output is correct |
80 |
Correct |
70 ms |
15000 KB |
Output is correct |
81 |
Correct |
57 ms |
9696 KB |
Output is correct |
82 |
Correct |
78 ms |
14972 KB |
Output is correct |
83 |
Correct |
63 ms |
11852 KB |
Output is correct |
84 |
Correct |
1 ms |
212 KB |
Output is correct |
85 |
Correct |
1 ms |
212 KB |
Output is correct |
86 |
Correct |
1 ms |
212 KB |
Output is correct |
87 |
Correct |
1 ms |
296 KB |
Output is correct |
88 |
Correct |
1 ms |
340 KB |
Output is correct |
89 |
Correct |
1 ms |
340 KB |
Output is correct |
90 |
Correct |
2 ms |
340 KB |
Output is correct |
91 |
Correct |
2 ms |
308 KB |
Output is correct |
92 |
Correct |
2 ms |
340 KB |
Output is correct |
93 |
Correct |
1 ms |
312 KB |
Output is correct |
94 |
Correct |
1 ms |
308 KB |
Output is correct |
95 |
Correct |
1 ms |
340 KB |
Output is correct |
96 |
Correct |
1 ms |
340 KB |
Output is correct |
97 |
Correct |
1 ms |
308 KB |
Output is correct |
98 |
Correct |
1 ms |
340 KB |
Output is correct |
99 |
Correct |
1 ms |
440 KB |
Output is correct |
100 |
Correct |
1 ms |
340 KB |
Output is correct |
101 |
Correct |
7 ms |
1776 KB |
Output is correct |
102 |
Correct |
6 ms |
1380 KB |
Output is correct |
103 |
Correct |
89 ms |
16116 KB |
Output is correct |
104 |
Correct |
60 ms |
16028 KB |
Output is correct |
105 |
Correct |
66 ms |
13352 KB |
Output is correct |
106 |
Correct |
66 ms |
16076 KB |
Output is correct |
107 |
Correct |
54 ms |
11440 KB |
Output is correct |
108 |
Correct |
50 ms |
11824 KB |
Output is correct |
109 |
Correct |
48 ms |
11056 KB |
Output is correct |
110 |
Correct |
54 ms |
10792 KB |
Output is correct |
111 |
Correct |
62 ms |
15400 KB |
Output is correct |
112 |
Correct |
111 ms |
14648 KB |
Output is correct |
113 |
Correct |
95 ms |
11440 KB |
Output is correct |
114 |
Correct |
68 ms |
16084 KB |
Output is correct |
115 |
Correct |
75 ms |
16120 KB |
Output is correct |