#include<bits/stdc++.h>
#include "shoes.h"
using namespace std;
typedef long long ll;
vector<ll>seg;
void update(int i, int v, int x, int lx, int rx) {
if (lx + 1 == rx) {
seg[x] += v;
return;
}
int mid = (lx + rx) / 2;
if (i < mid)
update(i, v, 2 * x + 1, lx, mid);
else
update(i, v, 2 * x + 2, mid, rx);
seg[x] = seg[2 * x + 1] + seg[2 * x + 2];
}
ll get(int l, int r, int x, int lx, int rx) {
if (lx >= r || rx <= l)
return 0;
if (lx >= l && rx <= r)
return seg[x];
int mid = (lx + rx) / 2;
return (get(l, r, 2 * x + 1, lx, mid) + get(l, r, 2 * x + 2, mid, rx));
}
long long count_swaps(std::vector<int> v) {
int n = v.size();
ll ans = 0;
int siz = 1;
while (siz < n)
siz *= 2;
seg.resize(2 * siz, 0LL);
map<int, priority_queue<int, vector<int>, greater<int>>>idx;
for (int i = 0; i < n; i++)
idx[v[i]].push(i);
vector<bool>vis(n + 1, false);
for (int i = 0; i < n; i++) {
if (vis[i])
continue;
int j = idx[-v[i]].top();
vis[i] = vis[j] = true;
idx[v[i]].pop(), idx[-v[i]].pop();
ll valJ = j + get(0, j + 1, 0, 0, siz), valI = i + get(0, i + 1, 0, 0, siz);
ll dif = valJ - valI - 1;
if (valI % 2 == 0 && v[i] < 0)
ans += dif;
else
ans += dif + 1;
update(i + 1, 1, 0, 0, siz);
update(j + 1, -1, 0, 0, siz);
}
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 |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
1 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Correct |
0 ms |
212 KB |
Output is correct |
| 24 |
Correct |
0 ms |
212 KB |
Output is correct |
| 25 |
Correct |
0 ms |
212 KB |
Output is correct |
| 26 |
Correct |
0 ms |
212 KB |
Output is correct |
| 27 |
Correct |
0 ms |
212 KB |
Output is correct |
| 28 |
Correct |
0 ms |
212 KB |
Output is correct |
| 29 |
Correct |
0 ms |
212 KB |
Output is correct |
| 30 |
Correct |
0 ms |
212 KB |
Output is correct |
| 31 |
Correct |
0 ms |
212 KB |
Output is correct |
| 32 |
Correct |
0 ms |
212 KB |
Output is correct |
| 33 |
Correct |
0 ms |
212 KB |
Output is correct |
| 34 |
Correct |
0 ms |
212 KB |
Output is correct |
| 35 |
Correct |
0 ms |
212 KB |
Output is correct |
| 36 |
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 |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 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 |
7 ms |
1108 KB |
Output is correct |
| 21 |
Correct |
7 ms |
1108 KB |
Output is correct |
| 22 |
Correct |
72 ms |
6868 KB |
Output is correct |
| 23 |
Correct |
70 ms |
6856 KB |
Output is correct |
| 24 |
Correct |
73 ms |
6948 KB |
Output is correct |
| 25 |
Correct |
69 ms |
7072 KB |
Output is correct |
| 26 |
Correct |
74 ms |
6964 KB |
Output is correct |
| 27 |
Correct |
68 ms |
6976 KB |
Output is correct |
| 28 |
Correct |
74 ms |
7096 KB |
Output is correct |
| 29 |
Correct |
70 ms |
7084 KB |
Output is correct |
| 30 |
Correct |
72 ms |
7096 KB |
Output is correct |
| 31 |
Correct |
74 ms |
6872 KB |
Output is correct |
| 32 |
Correct |
68 ms |
7128 KB |
Output is correct |
| 33 |
Correct |
67 ms |
7108 KB |
Output is correct |
| 34 |
Correct |
74 ms |
7100 KB |
Output is correct |
| 35 |
Correct |
0 ms |
212 KB |
Output is correct |
| 36 |
Correct |
0 ms |
212 KB |
Output is correct |
| 37 |
Correct |
68 ms |
7100 KB |
Output is correct |
| 38 |
Correct |
70 ms |
7108 KB |
Output is correct |
| 39 |
Correct |
68 ms |
7100 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 |
251 ms |
27904 KB |
Output is correct |
| 6 |
Correct |
123 ms |
8844 KB |
Output is correct |
| 7 |
Correct |
251 ms |
27836 KB |
Output is correct |
| 8 |
Correct |
70 ms |
6896 KB |
Output is correct |
| 9 |
Correct |
286 ms |
27952 KB |
Output is correct |
| 10 |
Correct |
176 ms |
16960 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 |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
1 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Correct |
0 ms |
212 KB |
Output is correct |
| 24 |
Correct |
0 ms |
212 KB |
Output is correct |
| 25 |
Correct |
0 ms |
212 KB |
Output is correct |
| 26 |
Correct |
0 ms |
212 KB |
Output is correct |
| 27 |
Correct |
0 ms |
212 KB |
Output is correct |
| 28 |
Correct |
0 ms |
212 KB |
Output is correct |
| 29 |
Correct |
0 ms |
212 KB |
Output is correct |
| 30 |
Correct |
0 ms |
212 KB |
Output is correct |
| 31 |
Correct |
0 ms |
212 KB |
Output is correct |
| 32 |
Correct |
0 ms |
212 KB |
Output is correct |
| 33 |
Correct |
0 ms |
212 KB |
Output is correct |
| 34 |
Correct |
0 ms |
212 KB |
Output is correct |
| 35 |
Correct |
0 ms |
212 KB |
Output is correct |
| 36 |
Correct |
0 ms |
212 KB |
Output is correct |
| 37 |
Correct |
1 ms |
212 KB |
Output is correct |
| 38 |
Correct |
1 ms |
244 KB |
Output is correct |
| 39 |
Correct |
1 ms |
212 KB |
Output is correct |
| 40 |
Correct |
1 ms |
340 KB |
Output is correct |
| 41 |
Correct |
1 ms |
468 KB |
Output is correct |
| 42 |
Correct |
1 ms |
468 KB |
Output is correct |
| 43 |
Correct |
1 ms |
468 KB |
Output is correct |
| 44 |
Correct |
2 ms |
468 KB |
Output is correct |
| 45 |
Correct |
2 ms |
512 KB |
Output is correct |
| 46 |
Correct |
1 ms |
340 KB |
Output is correct |
| 47 |
Correct |
1 ms |
340 KB |
Output is correct |
| 48 |
Correct |
1 ms |
340 KB |
Output is correct |
| 49 |
Correct |
1 ms |
300 KB |
Output is correct |
| 50 |
Correct |
1 ms |
340 KB |
Output is correct |
| 51 |
Correct |
1 ms |
340 KB |
Output is correct |
| 52 |
Correct |
1 ms |
468 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 |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
1 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Correct |
0 ms |
212 KB |
Output is correct |
| 24 |
Correct |
0 ms |
212 KB |
Output is correct |
| 25 |
Correct |
0 ms |
212 KB |
Output is correct |
| 26 |
Correct |
0 ms |
212 KB |
Output is correct |
| 27 |
Correct |
0 ms |
212 KB |
Output is correct |
| 28 |
Correct |
0 ms |
212 KB |
Output is correct |
| 29 |
Correct |
0 ms |
212 KB |
Output is correct |
| 30 |
Correct |
0 ms |
212 KB |
Output is correct |
| 31 |
Correct |
0 ms |
212 KB |
Output is correct |
| 32 |
Correct |
0 ms |
212 KB |
Output is correct |
| 33 |
Correct |
0 ms |
212 KB |
Output is correct |
| 34 |
Correct |
0 ms |
212 KB |
Output is correct |
| 35 |
Correct |
0 ms |
212 KB |
Output is correct |
| 36 |
Correct |
0 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 |
212 KB |
Output is correct |
| 41 |
Correct |
0 ms |
212 KB |
Output is correct |
| 42 |
Correct |
0 ms |
212 KB |
Output is correct |
| 43 |
Correct |
1 ms |
212 KB |
Output is correct |
| 44 |
Correct |
0 ms |
212 KB |
Output is correct |
| 45 |
Correct |
0 ms |
212 KB |
Output is correct |
| 46 |
Correct |
0 ms |
212 KB |
Output is correct |
| 47 |
Correct |
0 ms |
212 KB |
Output is correct |
| 48 |
Correct |
0 ms |
212 KB |
Output is correct |
| 49 |
Correct |
0 ms |
212 KB |
Output is correct |
| 50 |
Correct |
0 ms |
212 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 |
7 ms |
1108 KB |
Output is correct |
| 55 |
Correct |
7 ms |
1108 KB |
Output is correct |
| 56 |
Correct |
72 ms |
6868 KB |
Output is correct |
| 57 |
Correct |
70 ms |
6856 KB |
Output is correct |
| 58 |
Correct |
73 ms |
6948 KB |
Output is correct |
| 59 |
Correct |
69 ms |
7072 KB |
Output is correct |
| 60 |
Correct |
74 ms |
6964 KB |
Output is correct |
| 61 |
Correct |
68 ms |
6976 KB |
Output is correct |
| 62 |
Correct |
74 ms |
7096 KB |
Output is correct |
| 63 |
Correct |
70 ms |
7084 KB |
Output is correct |
| 64 |
Correct |
72 ms |
7096 KB |
Output is correct |
| 65 |
Correct |
74 ms |
6872 KB |
Output is correct |
| 66 |
Correct |
68 ms |
7128 KB |
Output is correct |
| 67 |
Correct |
67 ms |
7108 KB |
Output is correct |
| 68 |
Correct |
74 ms |
7100 KB |
Output is correct |
| 69 |
Correct |
0 ms |
212 KB |
Output is correct |
| 70 |
Correct |
0 ms |
212 KB |
Output is correct |
| 71 |
Correct |
68 ms |
7100 KB |
Output is correct |
| 72 |
Correct |
70 ms |
7108 KB |
Output is correct |
| 73 |
Correct |
68 ms |
7100 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 |
0 ms |
212 KB |
Output is correct |
| 78 |
Correct |
251 ms |
27904 KB |
Output is correct |
| 79 |
Correct |
123 ms |
8844 KB |
Output is correct |
| 80 |
Correct |
251 ms |
27836 KB |
Output is correct |
| 81 |
Correct |
70 ms |
6896 KB |
Output is correct |
| 82 |
Correct |
286 ms |
27952 KB |
Output is correct |
| 83 |
Correct |
176 ms |
16960 KB |
Output is correct |
| 84 |
Correct |
1 ms |
212 KB |
Output is correct |
| 85 |
Correct |
1 ms |
244 KB |
Output is correct |
| 86 |
Correct |
1 ms |
212 KB |
Output is correct |
| 87 |
Correct |
1 ms |
340 KB |
Output is correct |
| 88 |
Correct |
1 ms |
468 KB |
Output is correct |
| 89 |
Correct |
1 ms |
468 KB |
Output is correct |
| 90 |
Correct |
1 ms |
468 KB |
Output is correct |
| 91 |
Correct |
2 ms |
468 KB |
Output is correct |
| 92 |
Correct |
2 ms |
512 KB |
Output is correct |
| 93 |
Correct |
1 ms |
340 KB |
Output is correct |
| 94 |
Correct |
1 ms |
340 KB |
Output is correct |
| 95 |
Correct |
1 ms |
340 KB |
Output is correct |
| 96 |
Correct |
1 ms |
300 KB |
Output is correct |
| 97 |
Correct |
1 ms |
340 KB |
Output is correct |
| 98 |
Correct |
1 ms |
340 KB |
Output is correct |
| 99 |
Correct |
1 ms |
468 KB |
Output is correct |
| 100 |
Correct |
2 ms |
468 KB |
Output is correct |
| 101 |
Correct |
15 ms |
3028 KB |
Output is correct |
| 102 |
Correct |
12 ms |
1588 KB |
Output is correct |
| 103 |
Correct |
354 ms |
29152 KB |
Output is correct |
| 104 |
Correct |
242 ms |
29076 KB |
Output is correct |
| 105 |
Correct |
197 ms |
19788 KB |
Output is correct |
| 106 |
Correct |
282 ms |
29156 KB |
Output is correct |
| 107 |
Correct |
126 ms |
10540 KB |
Output is correct |
| 108 |
Correct |
132 ms |
12756 KB |
Output is correct |
| 109 |
Correct |
70 ms |
8368 KB |
Output is correct |
| 110 |
Correct |
69 ms |
8396 KB |
Output is correct |
| 111 |
Correct |
238 ms |
26700 KB |
Output is correct |
| 112 |
Correct |
259 ms |
24288 KB |
Output is correct |
| 113 |
Correct |
144 ms |
10776 KB |
Output is correct |
| 114 |
Correct |
254 ms |
29152 KB |
Output is correct |
| 115 |
Correct |
269 ms |
29152 KB |
Output is correct |
