#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define ll long long
#define pb push_back
#define fs first
#define sd second
#define all(x) x.begin(), x.end()
#define Mod long(1e9 + 7)
const int Max = 1e6 + 7, Inf = 1e9 + 7;
struct ABI
{
vector <ll> s;
void update(ll x, ll k)
{
for(x; x < (ll) s.size(); x += (x & -x))
s[x] += k;
}
ll sum(ll x)
{
ll ans = 0;
for(x; x > 0; x -= (x & -x))
ans += s[x];
return ans;
}
ll query(ll l, ll r)
{
if(l == 0) return sum(r);
return sum(r) - sum(l-1);
}
ABI(ll n)
{
s.assign(n+1, 0);
}
};
long long count_swaps(std::vector<int> s)
{
ll n = (int) s.size(), ans = 0;
vector <deque<int>> v(n+7, deque <int> ());
for(int i = 0; i < n; i++)
v[abs(s[i]) + (s[i] > 0 ? n/2+1 : 0)].push_back(i);
vector <int> pass(n+7, 0); ABI St(n+7);
for(int i = 0; i < n; i++)
{
if(!pass[i])
{
int x = v[abs(s[i])].front(), y = v[abs(s[i]) + n/2+1].front();
v[abs(s[i])].pop_front();
v[abs(s[i]) + n/2+1].pop_front();
pass[x] = pass[y] = 1;
ll x1 = x + St.query(0, x+1), y1 = y + St.query(0, y+1);
if(x > y) { St.update(x+1, -1); St.update(y+1, +1); }
else { St.update(x+1, +1); St.update(y+1, -1); }
if(x1 > y1)
ans += (x1 - y1);
else
ans += (y1 - (x1 + 1));
}
}
return ans;
}
Compilation message
shoes.cpp: In member function 'void ABI::update(long long int, long long int)':
shoes.cpp:20:7: warning: statement has no effect [-Wunused-value]
20 | for(x; x < (ll) s.size(); x += (x & -x))
| ^
shoes.cpp: In member function 'long long int ABI::sum(long long int)':
shoes.cpp:27:7: warning: statement has no effect [-Wunused-value]
27 | for(x; x > 0; x -= (x & -x))
| ^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 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 |
0 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 |
1 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 |
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 |
1 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 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 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 |
0 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 |
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 |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
0 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
596 KB |
Output is correct |
18 |
Correct |
1 ms |
1620 KB |
Output is correct |
19 |
Correct |
2 ms |
1620 KB |
Output is correct |
20 |
Correct |
12 ms |
14188 KB |
Output is correct |
21 |
Correct |
9 ms |
14148 KB |
Output is correct |
22 |
Correct |
87 ms |
139592 KB |
Output is correct |
23 |
Correct |
84 ms |
139608 KB |
Output is correct |
24 |
Correct |
86 ms |
139660 KB |
Output is correct |
25 |
Correct |
102 ms |
139580 KB |
Output is correct |
26 |
Correct |
91 ms |
139672 KB |
Output is correct |
27 |
Correct |
84 ms |
139664 KB |
Output is correct |
28 |
Correct |
87 ms |
139728 KB |
Output is correct |
29 |
Correct |
111 ms |
139588 KB |
Output is correct |
30 |
Correct |
88 ms |
139616 KB |
Output is correct |
31 |
Correct |
97 ms |
139604 KB |
Output is correct |
32 |
Correct |
105 ms |
139664 KB |
Output is correct |
33 |
Correct |
96 ms |
139684 KB |
Output is correct |
34 |
Correct |
90 ms |
139596 KB |
Output is correct |
35 |
Correct |
0 ms |
212 KB |
Output is correct |
36 |
Correct |
1 ms |
212 KB |
Output is correct |
37 |
Correct |
89 ms |
139624 KB |
Output is correct |
38 |
Correct |
94 ms |
139600 KB |
Output is correct |
39 |
Correct |
93 ms |
139612 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 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 |
121 ms |
138792 KB |
Output is correct |
6 |
Correct |
101 ms |
138796 KB |
Output is correct |
7 |
Correct |
125 ms |
138764 KB |
Output is correct |
8 |
Correct |
86 ms |
139608 KB |
Output is correct |
9 |
Correct |
123 ms |
138816 KB |
Output is correct |
10 |
Correct |
117 ms |
138852 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 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 |
0 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 |
1 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 |
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 |
1 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 |
0 ms |
340 KB |
Output is correct |
39 |
Correct |
0 ms |
340 KB |
Output is correct |
40 |
Correct |
1 ms |
596 KB |
Output is correct |
41 |
Correct |
1 ms |
1620 KB |
Output is correct |
42 |
Correct |
1 ms |
1620 KB |
Output is correct |
43 |
Correct |
1 ms |
1620 KB |
Output is correct |
44 |
Correct |
1 ms |
1620 KB |
Output is correct |
45 |
Correct |
1 ms |
1620 KB |
Output is correct |
46 |
Correct |
1 ms |
1620 KB |
Output is correct |
47 |
Correct |
1 ms |
1620 KB |
Output is correct |
48 |
Correct |
2 ms |
1620 KB |
Output is correct |
49 |
Correct |
1 ms |
1620 KB |
Output is correct |
50 |
Correct |
2 ms |
1620 KB |
Output is correct |
51 |
Correct |
1 ms |
1620 KB |
Output is correct |
52 |
Correct |
1 ms |
1620 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 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 |
0 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 |
1 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 |
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 |
1 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 |
0 ms |
212 KB |
Output is correct |
39 |
Correct |
1 ms |
212 KB |
Output is correct |
40 |
Correct |
0 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 |
0 ms |
212 KB |
Output is correct |
44 |
Correct |
0 ms |
212 KB |
Output is correct |
45 |
Correct |
1 ms |
212 KB |
Output is correct |
46 |
Correct |
0 ms |
212 KB |
Output is correct |
47 |
Correct |
1 ms |
212 KB |
Output is correct |
48 |
Correct |
0 ms |
212 KB |
Output is correct |
49 |
Correct |
0 ms |
340 KB |
Output is correct |
50 |
Correct |
0 ms |
340 KB |
Output is correct |
51 |
Correct |
1 ms |
596 KB |
Output is correct |
52 |
Correct |
1 ms |
1620 KB |
Output is correct |
53 |
Correct |
2 ms |
1620 KB |
Output is correct |
54 |
Correct |
12 ms |
14188 KB |
Output is correct |
55 |
Correct |
9 ms |
14148 KB |
Output is correct |
56 |
Correct |
87 ms |
139592 KB |
Output is correct |
57 |
Correct |
84 ms |
139608 KB |
Output is correct |
58 |
Correct |
86 ms |
139660 KB |
Output is correct |
59 |
Correct |
102 ms |
139580 KB |
Output is correct |
60 |
Correct |
91 ms |
139672 KB |
Output is correct |
61 |
Correct |
84 ms |
139664 KB |
Output is correct |
62 |
Correct |
87 ms |
139728 KB |
Output is correct |
63 |
Correct |
111 ms |
139588 KB |
Output is correct |
64 |
Correct |
88 ms |
139616 KB |
Output is correct |
65 |
Correct |
97 ms |
139604 KB |
Output is correct |
66 |
Correct |
105 ms |
139664 KB |
Output is correct |
67 |
Correct |
96 ms |
139684 KB |
Output is correct |
68 |
Correct |
90 ms |
139596 KB |
Output is correct |
69 |
Correct |
0 ms |
212 KB |
Output is correct |
70 |
Correct |
1 ms |
212 KB |
Output is correct |
71 |
Correct |
89 ms |
139624 KB |
Output is correct |
72 |
Correct |
94 ms |
139600 KB |
Output is correct |
73 |
Correct |
93 ms |
139612 KB |
Output is correct |
74 |
Correct |
1 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 |
121 ms |
138792 KB |
Output is correct |
79 |
Correct |
101 ms |
138796 KB |
Output is correct |
80 |
Correct |
125 ms |
138764 KB |
Output is correct |
81 |
Correct |
86 ms |
139608 KB |
Output is correct |
82 |
Correct |
123 ms |
138816 KB |
Output is correct |
83 |
Correct |
117 ms |
138852 KB |
Output is correct |
84 |
Correct |
0 ms |
212 KB |
Output is correct |
85 |
Correct |
0 ms |
340 KB |
Output is correct |
86 |
Correct |
0 ms |
340 KB |
Output is correct |
87 |
Correct |
1 ms |
596 KB |
Output is correct |
88 |
Correct |
1 ms |
1620 KB |
Output is correct |
89 |
Correct |
1 ms |
1620 KB |
Output is correct |
90 |
Correct |
1 ms |
1620 KB |
Output is correct |
91 |
Correct |
1 ms |
1620 KB |
Output is correct |
92 |
Correct |
1 ms |
1620 KB |
Output is correct |
93 |
Correct |
1 ms |
1620 KB |
Output is correct |
94 |
Correct |
1 ms |
1620 KB |
Output is correct |
95 |
Correct |
2 ms |
1620 KB |
Output is correct |
96 |
Correct |
1 ms |
1620 KB |
Output is correct |
97 |
Correct |
2 ms |
1620 KB |
Output is correct |
98 |
Correct |
1 ms |
1620 KB |
Output is correct |
99 |
Correct |
1 ms |
1620 KB |
Output is correct |
100 |
Correct |
2 ms |
1620 KB |
Output is correct |
101 |
Correct |
9 ms |
14168 KB |
Output is correct |
102 |
Correct |
9 ms |
14156 KB |
Output is correct |
103 |
Correct |
147 ms |
138960 KB |
Output is correct |
104 |
Correct |
118 ms |
138784 KB |
Output is correct |
105 |
Correct |
120 ms |
138828 KB |
Output is correct |
106 |
Correct |
143 ms |
138808 KB |
Output is correct |
107 |
Correct |
96 ms |
138816 KB |
Output is correct |
108 |
Correct |
111 ms |
138740 KB |
Output is correct |
109 |
Correct |
90 ms |
139688 KB |
Output is correct |
110 |
Correct |
89 ms |
139672 KB |
Output is correct |
111 |
Correct |
125 ms |
138840 KB |
Output is correct |
112 |
Correct |
122 ms |
138812 KB |
Output is correct |
113 |
Correct |
100 ms |
138804 KB |
Output is correct |
114 |
Correct |
124 ms |
138828 KB |
Output is correct |
115 |
Correct |
125 ms |
138768 KB |
Output is correct |