#include "shoes.h"
// #pragma GCC target("avx2")
#pragma GCC optimize("O3", "unroll-loops")
// #include <bits/extc++.h>
// using namespace __gnu_pbds;
#include <bits/stdc++.h>
using namespace std;
#define int long long
// template <typename T>
// using pbds_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
using pii = pair<int, int>;
template<typename T>
using prior = priority_queue<T, vector<T>, greater<T>>;
template<typename T>
using Prior = priority_queue<T>;
#define X first
#define Y second
#define eb emplace_back
#define pb push_back
#define fastIO() ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define RANDOM() random_device __rd; \
mt19937 __gen = mt19937(__rd()); \
uniform_int_distribution<int> __dis(0, 1); \
auto rnd = bind(__dis, __gen);
const int INF = 1E18;
const int mod = 1E9 + 7;
const int maxn = 1 << 18;
vector<int> BIT(maxn, 0);
void Add(int idx) {while (idx < maxn) ++BIT[idx], idx += idx&-idx;}
int Sum(int idx, int ans = 0) {while (idx) ans += BIT[idx], idx -= idx&-idx; return ans;}
int count_swaps(vector<int32_t> _S) {
vector<int> S;
for (auto x : _S) S.eb(x);
int n = S.size() / 2, ans = 0;
map<int, int> trans;
map<int, pii> place;
vector<pii> pairs;
set<int> appear;
for (int i = 0, now = S[i]; i < 2*n; now = S[++i]) {
if (!trans[now]) trans[now] = S[i];
S[i] = trans[now];
if (appear.count(S[i])) S[i] += (S[i] > 0 ? n : -n);
appear.insert(S[i]), trans[now] = S[i];
}
// for (auto x : S) cout << x << ", ";
appear.clear(), trans.clear();
for (int i = 0; i < 2*n; ++i) {
if (S[i] > 0 and !appear.count(-S[i])) ++ans;
appear.insert(S[i]);
S[i] = abs(S[i]);
}
for (int i = 0; i < 2*n; ++i) {
if (place[S[i]].first) place[S[i]].second = i + 1;
else place[S[i]].first = i + 1;
}
// for (auto x : place) cout << x.Y.X << ", " << x.Y.Y << "\n";
for (auto x : place) pairs.eb(x.Y.X, x.Y.Y);
sort(pairs.begin(), pairs.end());
for (auto pl : pairs) {
Add(pl.X), Add(pl.Y), ans += pl.Y - Sum(pl.Y);
}
return ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
2304 KB |
Output is correct |
2 |
Correct |
5 ms |
2428 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
2304 KB |
Output is correct |
2 |
Correct |
5 ms |
2428 KB |
Output is correct |
3 |
Correct |
6 ms |
2432 KB |
Output is correct |
4 |
Correct |
6 ms |
2560 KB |
Output is correct |
5 |
Correct |
6 ms |
2304 KB |
Output is correct |
6 |
Correct |
6 ms |
2432 KB |
Output is correct |
7 |
Correct |
6 ms |
2432 KB |
Output is correct |
8 |
Correct |
5 ms |
2432 KB |
Output is correct |
9 |
Correct |
6 ms |
2432 KB |
Output is correct |
10 |
Correct |
5 ms |
2432 KB |
Output is correct |
11 |
Correct |
6 ms |
2432 KB |
Output is correct |
12 |
Correct |
5 ms |
2432 KB |
Output is correct |
13 |
Correct |
6 ms |
2432 KB |
Output is correct |
14 |
Correct |
5 ms |
2432 KB |
Output is correct |
15 |
Correct |
6 ms |
2432 KB |
Output is correct |
16 |
Correct |
7 ms |
2432 KB |
Output is correct |
17 |
Correct |
5 ms |
2432 KB |
Output is correct |
18 |
Correct |
5 ms |
2432 KB |
Output is correct |
19 |
Correct |
5 ms |
2432 KB |
Output is correct |
20 |
Correct |
6 ms |
2432 KB |
Output is correct |
21 |
Correct |
6 ms |
2432 KB |
Output is correct |
22 |
Correct |
6 ms |
2432 KB |
Output is correct |
23 |
Correct |
5 ms |
2432 KB |
Output is correct |
24 |
Correct |
5 ms |
2432 KB |
Output is correct |
25 |
Correct |
5 ms |
2432 KB |
Output is correct |
26 |
Correct |
6 ms |
2432 KB |
Output is correct |
27 |
Correct |
5 ms |
2432 KB |
Output is correct |
28 |
Correct |
6 ms |
2432 KB |
Output is correct |
29 |
Correct |
6 ms |
2432 KB |
Output is correct |
30 |
Correct |
6 ms |
2432 KB |
Output is correct |
31 |
Correct |
6 ms |
2432 KB |
Output is correct |
32 |
Correct |
6 ms |
2432 KB |
Output is correct |
33 |
Correct |
6 ms |
2432 KB |
Output is correct |
34 |
Correct |
6 ms |
2432 KB |
Output is correct |
35 |
Correct |
6 ms |
2432 KB |
Output is correct |
36 |
Correct |
5 ms |
2432 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
2304 KB |
Output is correct |
2 |
Correct |
5 ms |
2428 KB |
Output is correct |
3 |
Correct |
5 ms |
2432 KB |
Output is correct |
4 |
Correct |
6 ms |
2432 KB |
Output is correct |
5 |
Correct |
5 ms |
2432 KB |
Output is correct |
6 |
Correct |
6 ms |
2432 KB |
Output is correct |
7 |
Correct |
6 ms |
2432 KB |
Output is correct |
8 |
Correct |
6 ms |
2432 KB |
Output is correct |
9 |
Correct |
6 ms |
2432 KB |
Output is correct |
10 |
Correct |
5 ms |
2484 KB |
Output is correct |
11 |
Correct |
5 ms |
2432 KB |
Output is correct |
12 |
Correct |
5 ms |
2432 KB |
Output is correct |
13 |
Correct |
5 ms |
2432 KB |
Output is correct |
14 |
Correct |
5 ms |
2432 KB |
Output is correct |
15 |
Correct |
6 ms |
2432 KB |
Output is correct |
16 |
Correct |
6 ms |
2432 KB |
Output is correct |
17 |
Correct |
6 ms |
2432 KB |
Output is correct |
18 |
Correct |
7 ms |
2560 KB |
Output is correct |
19 |
Correct |
7 ms |
2560 KB |
Output is correct |
20 |
Correct |
19 ms |
4732 KB |
Output is correct |
21 |
Correct |
20 ms |
4604 KB |
Output is correct |
22 |
Correct |
187 ms |
24296 KB |
Output is correct |
23 |
Correct |
220 ms |
25552 KB |
Output is correct |
24 |
Correct |
190 ms |
25576 KB |
Output is correct |
25 |
Correct |
207 ms |
25320 KB |
Output is correct |
26 |
Correct |
185 ms |
25448 KB |
Output is correct |
27 |
Correct |
225 ms |
25260 KB |
Output is correct |
28 |
Correct |
205 ms |
25576 KB |
Output is correct |
29 |
Correct |
208 ms |
25576 KB |
Output is correct |
30 |
Correct |
205 ms |
25448 KB |
Output is correct |
31 |
Correct |
186 ms |
25448 KB |
Output is correct |
32 |
Correct |
206 ms |
25448 KB |
Output is correct |
33 |
Correct |
208 ms |
25448 KB |
Output is correct |
34 |
Correct |
208 ms |
25576 KB |
Output is correct |
35 |
Correct |
5 ms |
2432 KB |
Output is correct |
36 |
Correct |
6 ms |
2432 KB |
Output is correct |
37 |
Correct |
209 ms |
25704 KB |
Output is correct |
38 |
Correct |
211 ms |
25448 KB |
Output is correct |
39 |
Correct |
205 ms |
25576 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
2432 KB |
Output is correct |
2 |
Correct |
5 ms |
2432 KB |
Output is correct |
3 |
Correct |
5 ms |
2432 KB |
Output is correct |
4 |
Correct |
5 ms |
2428 KB |
Output is correct |
5 |
Correct |
687 ms |
30440 KB |
Output is correct |
6 |
Correct |
496 ms |
24296 KB |
Output is correct |
7 |
Correct |
702 ms |
30568 KB |
Output is correct |
8 |
Correct |
174 ms |
24296 KB |
Output is correct |
9 |
Correct |
694 ms |
30560 KB |
Output is correct |
10 |
Correct |
616 ms |
24296 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
2304 KB |
Output is correct |
2 |
Correct |
5 ms |
2428 KB |
Output is correct |
3 |
Correct |
6 ms |
2432 KB |
Output is correct |
4 |
Correct |
6 ms |
2560 KB |
Output is correct |
5 |
Correct |
6 ms |
2304 KB |
Output is correct |
6 |
Correct |
6 ms |
2432 KB |
Output is correct |
7 |
Correct |
6 ms |
2432 KB |
Output is correct |
8 |
Correct |
5 ms |
2432 KB |
Output is correct |
9 |
Correct |
6 ms |
2432 KB |
Output is correct |
10 |
Correct |
5 ms |
2432 KB |
Output is correct |
11 |
Correct |
6 ms |
2432 KB |
Output is correct |
12 |
Correct |
5 ms |
2432 KB |
Output is correct |
13 |
Correct |
6 ms |
2432 KB |
Output is correct |
14 |
Correct |
5 ms |
2432 KB |
Output is correct |
15 |
Correct |
6 ms |
2432 KB |
Output is correct |
16 |
Correct |
7 ms |
2432 KB |
Output is correct |
17 |
Correct |
5 ms |
2432 KB |
Output is correct |
18 |
Correct |
5 ms |
2432 KB |
Output is correct |
19 |
Correct |
5 ms |
2432 KB |
Output is correct |
20 |
Correct |
6 ms |
2432 KB |
Output is correct |
21 |
Correct |
6 ms |
2432 KB |
Output is correct |
22 |
Correct |
6 ms |
2432 KB |
Output is correct |
23 |
Correct |
5 ms |
2432 KB |
Output is correct |
24 |
Correct |
5 ms |
2432 KB |
Output is correct |
25 |
Correct |
5 ms |
2432 KB |
Output is correct |
26 |
Correct |
6 ms |
2432 KB |
Output is correct |
27 |
Correct |
5 ms |
2432 KB |
Output is correct |
28 |
Correct |
6 ms |
2432 KB |
Output is correct |
29 |
Correct |
6 ms |
2432 KB |
Output is correct |
30 |
Correct |
6 ms |
2432 KB |
Output is correct |
31 |
Correct |
6 ms |
2432 KB |
Output is correct |
32 |
Correct |
6 ms |
2432 KB |
Output is correct |
33 |
Correct |
6 ms |
2432 KB |
Output is correct |
34 |
Correct |
6 ms |
2432 KB |
Output is correct |
35 |
Correct |
6 ms |
2432 KB |
Output is correct |
36 |
Correct |
5 ms |
2432 KB |
Output is correct |
37 |
Correct |
5 ms |
2432 KB |
Output is correct |
38 |
Correct |
6 ms |
2432 KB |
Output is correct |
39 |
Correct |
6 ms |
2432 KB |
Output is correct |
40 |
Correct |
6 ms |
2432 KB |
Output is correct |
41 |
Correct |
8 ms |
2688 KB |
Output is correct |
42 |
Correct |
8 ms |
2688 KB |
Output is correct |
43 |
Correct |
8 ms |
2688 KB |
Output is correct |
44 |
Correct |
8 ms |
2688 KB |
Output is correct |
45 |
Correct |
8 ms |
2688 KB |
Output is correct |
46 |
Correct |
8 ms |
2560 KB |
Output is correct |
47 |
Correct |
8 ms |
2560 KB |
Output is correct |
48 |
Correct |
8 ms |
2560 KB |
Output is correct |
49 |
Correct |
8 ms |
2560 KB |
Output is correct |
50 |
Correct |
7 ms |
2560 KB |
Output is correct |
51 |
Correct |
7 ms |
2560 KB |
Output is correct |
52 |
Correct |
8 ms |
2688 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
2304 KB |
Output is correct |
2 |
Correct |
5 ms |
2428 KB |
Output is correct |
3 |
Correct |
6 ms |
2432 KB |
Output is correct |
4 |
Correct |
6 ms |
2560 KB |
Output is correct |
5 |
Correct |
6 ms |
2304 KB |
Output is correct |
6 |
Correct |
6 ms |
2432 KB |
Output is correct |
7 |
Correct |
6 ms |
2432 KB |
Output is correct |
8 |
Correct |
5 ms |
2432 KB |
Output is correct |
9 |
Correct |
6 ms |
2432 KB |
Output is correct |
10 |
Correct |
5 ms |
2432 KB |
Output is correct |
11 |
Correct |
6 ms |
2432 KB |
Output is correct |
12 |
Correct |
5 ms |
2432 KB |
Output is correct |
13 |
Correct |
6 ms |
2432 KB |
Output is correct |
14 |
Correct |
5 ms |
2432 KB |
Output is correct |
15 |
Correct |
6 ms |
2432 KB |
Output is correct |
16 |
Correct |
7 ms |
2432 KB |
Output is correct |
17 |
Correct |
5 ms |
2432 KB |
Output is correct |
18 |
Correct |
5 ms |
2432 KB |
Output is correct |
19 |
Correct |
5 ms |
2432 KB |
Output is correct |
20 |
Correct |
6 ms |
2432 KB |
Output is correct |
21 |
Correct |
6 ms |
2432 KB |
Output is correct |
22 |
Correct |
6 ms |
2432 KB |
Output is correct |
23 |
Correct |
5 ms |
2432 KB |
Output is correct |
24 |
Correct |
5 ms |
2432 KB |
Output is correct |
25 |
Correct |
5 ms |
2432 KB |
Output is correct |
26 |
Correct |
6 ms |
2432 KB |
Output is correct |
27 |
Correct |
5 ms |
2432 KB |
Output is correct |
28 |
Correct |
6 ms |
2432 KB |
Output is correct |
29 |
Correct |
6 ms |
2432 KB |
Output is correct |
30 |
Correct |
6 ms |
2432 KB |
Output is correct |
31 |
Correct |
6 ms |
2432 KB |
Output is correct |
32 |
Correct |
6 ms |
2432 KB |
Output is correct |
33 |
Correct |
6 ms |
2432 KB |
Output is correct |
34 |
Correct |
6 ms |
2432 KB |
Output is correct |
35 |
Correct |
6 ms |
2432 KB |
Output is correct |
36 |
Correct |
5 ms |
2432 KB |
Output is correct |
37 |
Correct |
5 ms |
2432 KB |
Output is correct |
38 |
Correct |
6 ms |
2432 KB |
Output is correct |
39 |
Correct |
5 ms |
2432 KB |
Output is correct |
40 |
Correct |
6 ms |
2432 KB |
Output is correct |
41 |
Correct |
6 ms |
2432 KB |
Output is correct |
42 |
Correct |
6 ms |
2432 KB |
Output is correct |
43 |
Correct |
6 ms |
2432 KB |
Output is correct |
44 |
Correct |
5 ms |
2484 KB |
Output is correct |
45 |
Correct |
5 ms |
2432 KB |
Output is correct |
46 |
Correct |
5 ms |
2432 KB |
Output is correct |
47 |
Correct |
5 ms |
2432 KB |
Output is correct |
48 |
Correct |
5 ms |
2432 KB |
Output is correct |
49 |
Correct |
6 ms |
2432 KB |
Output is correct |
50 |
Correct |
6 ms |
2432 KB |
Output is correct |
51 |
Correct |
6 ms |
2432 KB |
Output is correct |
52 |
Correct |
7 ms |
2560 KB |
Output is correct |
53 |
Correct |
7 ms |
2560 KB |
Output is correct |
54 |
Correct |
19 ms |
4732 KB |
Output is correct |
55 |
Correct |
20 ms |
4604 KB |
Output is correct |
56 |
Correct |
187 ms |
24296 KB |
Output is correct |
57 |
Correct |
220 ms |
25552 KB |
Output is correct |
58 |
Correct |
190 ms |
25576 KB |
Output is correct |
59 |
Correct |
207 ms |
25320 KB |
Output is correct |
60 |
Correct |
185 ms |
25448 KB |
Output is correct |
61 |
Correct |
225 ms |
25260 KB |
Output is correct |
62 |
Correct |
205 ms |
25576 KB |
Output is correct |
63 |
Correct |
208 ms |
25576 KB |
Output is correct |
64 |
Correct |
205 ms |
25448 KB |
Output is correct |
65 |
Correct |
186 ms |
25448 KB |
Output is correct |
66 |
Correct |
206 ms |
25448 KB |
Output is correct |
67 |
Correct |
208 ms |
25448 KB |
Output is correct |
68 |
Correct |
208 ms |
25576 KB |
Output is correct |
69 |
Correct |
5 ms |
2432 KB |
Output is correct |
70 |
Correct |
6 ms |
2432 KB |
Output is correct |
71 |
Correct |
209 ms |
25704 KB |
Output is correct |
72 |
Correct |
211 ms |
25448 KB |
Output is correct |
73 |
Correct |
205 ms |
25576 KB |
Output is correct |
74 |
Correct |
5 ms |
2432 KB |
Output is correct |
75 |
Correct |
5 ms |
2432 KB |
Output is correct |
76 |
Correct |
5 ms |
2432 KB |
Output is correct |
77 |
Correct |
5 ms |
2428 KB |
Output is correct |
78 |
Correct |
687 ms |
30440 KB |
Output is correct |
79 |
Correct |
496 ms |
24296 KB |
Output is correct |
80 |
Correct |
702 ms |
30568 KB |
Output is correct |
81 |
Correct |
174 ms |
24296 KB |
Output is correct |
82 |
Correct |
694 ms |
30560 KB |
Output is correct |
83 |
Correct |
616 ms |
24296 KB |
Output is correct |
84 |
Correct |
5 ms |
2432 KB |
Output is correct |
85 |
Correct |
6 ms |
2432 KB |
Output is correct |
86 |
Correct |
6 ms |
2432 KB |
Output is correct |
87 |
Correct |
6 ms |
2432 KB |
Output is correct |
88 |
Correct |
8 ms |
2688 KB |
Output is correct |
89 |
Correct |
8 ms |
2688 KB |
Output is correct |
90 |
Correct |
8 ms |
2688 KB |
Output is correct |
91 |
Correct |
8 ms |
2688 KB |
Output is correct |
92 |
Correct |
8 ms |
2688 KB |
Output is correct |
93 |
Correct |
8 ms |
2560 KB |
Output is correct |
94 |
Correct |
8 ms |
2560 KB |
Output is correct |
95 |
Correct |
8 ms |
2560 KB |
Output is correct |
96 |
Correct |
8 ms |
2560 KB |
Output is correct |
97 |
Correct |
7 ms |
2560 KB |
Output is correct |
98 |
Correct |
7 ms |
2560 KB |
Output is correct |
99 |
Correct |
8 ms |
2688 KB |
Output is correct |
100 |
Correct |
8 ms |
2688 KB |
Output is correct |
101 |
Correct |
42 ms |
5236 KB |
Output is correct |
102 |
Correct |
38 ms |
4724 KB |
Output is correct |
103 |
Correct |
794 ms |
31848 KB |
Output is correct |
104 |
Correct |
657 ms |
31720 KB |
Output is correct |
105 |
Correct |
683 ms |
26344 KB |
Output is correct |
106 |
Correct |
598 ms |
31864 KB |
Output is correct |
107 |
Correct |
542 ms |
25576 KB |
Output is correct |
108 |
Correct |
534 ms |
25448 KB |
Output is correct |
109 |
Correct |
157 ms |
25576 KB |
Output is correct |
110 |
Correct |
214 ms |
25576 KB |
Output is correct |
111 |
Correct |
599 ms |
30420 KB |
Output is correct |
112 |
Correct |
748 ms |
29016 KB |
Output is correct |
113 |
Correct |
484 ms |
25576 KB |
Output is correct |
114 |
Correct |
601 ms |
31720 KB |
Output is correct |
115 |
Correct |
616 ms |
31852 KB |
Output is correct |