#include <bits/stdc++.h>
#include "shoes.h"
using namespace std;
struct Fenwick{
vector<int> bit;
Fenwick(){
bit = vector<int> (1e6, 0);
}
void modify(int j, int v){
j++;
for(;j<1e6;j+=j&-j) bit[j] += v;
}
int query(int j){
j++;
int v = 0;
for(;j;j-=j&-j) v += bit[j];
return v;
}
int query(int a, int b){
if(b < a) swap(a, b);
return query(b) - query(a);
}
} F;
long long count_swaps(std::vector<int> s) {
int n = s.size();
vector<int> A[n + 1], B[n + 1];
for(int i = 0; i < n; i++){
if(s[i] < 0) A[-s[i]].push_back(i);
else B[s[i]].push_back(i);
}
vector<pair<int, int> > Q;
long long cnt = 0;
for(int i = 0; i <= n; i++){
for(int j = 0; j < A[i].size(); j++){
if(B[i][j] < A[i][j]){
cnt++;
swap(A[i][j], B[i][j]);
}
Q.push_back({A[i][j], B[i][j]});
}
}
sort(Q.begin(), Q.end(), [&](pair<int, int> a, pair<int, int> b){
return a.second < b.second;
});
for(auto p : Q){
int l = p.first;
int r = p.second;
cnt += F.query(l, r);
F.modify(l, 1);
F.modify(r, 1);
}
return cnt;
}
Compilation message
shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:41:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
41 | for(int j = 0; j < A[i].size(); j++){
| ~~^~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
4224 KB |
Output is correct |
2 |
Correct |
3 ms |
4224 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
4224 KB |
Output is correct |
2 |
Correct |
3 ms |
4224 KB |
Output is correct |
3 |
Correct |
3 ms |
4224 KB |
Output is correct |
4 |
Correct |
3 ms |
4224 KB |
Output is correct |
5 |
Correct |
4 ms |
4224 KB |
Output is correct |
6 |
Correct |
3 ms |
4224 KB |
Output is correct |
7 |
Correct |
3 ms |
4224 KB |
Output is correct |
8 |
Correct |
3 ms |
4224 KB |
Output is correct |
9 |
Correct |
3 ms |
4224 KB |
Output is correct |
10 |
Correct |
3 ms |
4224 KB |
Output is correct |
11 |
Correct |
3 ms |
4224 KB |
Output is correct |
12 |
Correct |
3 ms |
4224 KB |
Output is correct |
13 |
Correct |
3 ms |
4224 KB |
Output is correct |
14 |
Correct |
3 ms |
4224 KB |
Output is correct |
15 |
Correct |
4 ms |
4224 KB |
Output is correct |
16 |
Correct |
3 ms |
4224 KB |
Output is correct |
17 |
Correct |
4 ms |
4224 KB |
Output is correct |
18 |
Correct |
3 ms |
4224 KB |
Output is correct |
19 |
Correct |
4 ms |
4224 KB |
Output is correct |
20 |
Correct |
3 ms |
4224 KB |
Output is correct |
21 |
Correct |
4 ms |
4224 KB |
Output is correct |
22 |
Correct |
3 ms |
4224 KB |
Output is correct |
23 |
Correct |
3 ms |
4224 KB |
Output is correct |
24 |
Correct |
3 ms |
4224 KB |
Output is correct |
25 |
Correct |
3 ms |
4224 KB |
Output is correct |
26 |
Correct |
3 ms |
4224 KB |
Output is correct |
27 |
Correct |
4 ms |
4224 KB |
Output is correct |
28 |
Correct |
4 ms |
4224 KB |
Output is correct |
29 |
Correct |
3 ms |
4224 KB |
Output is correct |
30 |
Correct |
3 ms |
4224 KB |
Output is correct |
31 |
Correct |
3 ms |
4224 KB |
Output is correct |
32 |
Correct |
3 ms |
4224 KB |
Output is correct |
33 |
Correct |
3 ms |
4224 KB |
Output is correct |
34 |
Correct |
3 ms |
4224 KB |
Output is correct |
35 |
Correct |
3 ms |
4224 KB |
Output is correct |
36 |
Correct |
4 ms |
4300 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
4224 KB |
Output is correct |
2 |
Correct |
3 ms |
4224 KB |
Output is correct |
3 |
Correct |
3 ms |
4224 KB |
Output is correct |
4 |
Correct |
4 ms |
4224 KB |
Output is correct |
5 |
Correct |
4 ms |
4224 KB |
Output is correct |
6 |
Correct |
3 ms |
4224 KB |
Output is correct |
7 |
Correct |
3 ms |
4300 KB |
Output is correct |
8 |
Correct |
3 ms |
4224 KB |
Output is correct |
9 |
Correct |
4 ms |
4352 KB |
Output is correct |
10 |
Correct |
3 ms |
4224 KB |
Output is correct |
11 |
Correct |
3 ms |
4224 KB |
Output is correct |
12 |
Correct |
3 ms |
4224 KB |
Output is correct |
13 |
Correct |
3 ms |
4224 KB |
Output is correct |
14 |
Correct |
4 ms |
4224 KB |
Output is correct |
15 |
Correct |
3 ms |
4224 KB |
Output is correct |
16 |
Correct |
4 ms |
4428 KB |
Output is correct |
17 |
Correct |
3 ms |
4224 KB |
Output is correct |
18 |
Correct |
3 ms |
4352 KB |
Output is correct |
19 |
Correct |
4 ms |
4352 KB |
Output is correct |
20 |
Correct |
8 ms |
5760 KB |
Output is correct |
21 |
Correct |
8 ms |
5760 KB |
Output is correct |
22 |
Correct |
55 ms |
17560 KB |
Output is correct |
23 |
Correct |
55 ms |
18156 KB |
Output is correct |
24 |
Correct |
57 ms |
18028 KB |
Output is correct |
25 |
Correct |
51 ms |
18032 KB |
Output is correct |
26 |
Correct |
65 ms |
18004 KB |
Output is correct |
27 |
Correct |
54 ms |
18028 KB |
Output is correct |
28 |
Correct |
53 ms |
18032 KB |
Output is correct |
29 |
Correct |
54 ms |
18032 KB |
Output is correct |
30 |
Correct |
54 ms |
18032 KB |
Output is correct |
31 |
Correct |
54 ms |
18052 KB |
Output is correct |
32 |
Correct |
62 ms |
18032 KB |
Output is correct |
33 |
Correct |
55 ms |
18032 KB |
Output is correct |
34 |
Correct |
64 ms |
18104 KB |
Output is correct |
35 |
Correct |
3 ms |
4224 KB |
Output is correct |
36 |
Correct |
4 ms |
4224 KB |
Output is correct |
37 |
Correct |
52 ms |
18032 KB |
Output is correct |
38 |
Correct |
62 ms |
17988 KB |
Output is correct |
39 |
Correct |
54 ms |
18032 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
4224 KB |
Output is correct |
2 |
Correct |
3 ms |
4224 KB |
Output is correct |
3 |
Correct |
4 ms |
4204 KB |
Output is correct |
4 |
Correct |
4 ms |
4224 KB |
Output is correct |
5 |
Correct |
104 ms |
23028 KB |
Output is correct |
6 |
Correct |
73 ms |
18672 KB |
Output is correct |
7 |
Correct |
102 ms |
23568 KB |
Output is correct |
8 |
Correct |
74 ms |
18180 KB |
Output is correct |
9 |
Correct |
118 ms |
23500 KB |
Output is correct |
10 |
Correct |
103 ms |
20436 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
4224 KB |
Output is correct |
2 |
Correct |
3 ms |
4224 KB |
Output is correct |
3 |
Correct |
3 ms |
4224 KB |
Output is correct |
4 |
Correct |
3 ms |
4224 KB |
Output is correct |
5 |
Correct |
4 ms |
4224 KB |
Output is correct |
6 |
Correct |
3 ms |
4224 KB |
Output is correct |
7 |
Correct |
3 ms |
4224 KB |
Output is correct |
8 |
Correct |
3 ms |
4224 KB |
Output is correct |
9 |
Correct |
3 ms |
4224 KB |
Output is correct |
10 |
Correct |
3 ms |
4224 KB |
Output is correct |
11 |
Correct |
3 ms |
4224 KB |
Output is correct |
12 |
Correct |
3 ms |
4224 KB |
Output is correct |
13 |
Correct |
3 ms |
4224 KB |
Output is correct |
14 |
Correct |
3 ms |
4224 KB |
Output is correct |
15 |
Correct |
4 ms |
4224 KB |
Output is correct |
16 |
Correct |
3 ms |
4224 KB |
Output is correct |
17 |
Correct |
4 ms |
4224 KB |
Output is correct |
18 |
Correct |
3 ms |
4224 KB |
Output is correct |
19 |
Correct |
4 ms |
4224 KB |
Output is correct |
20 |
Correct |
3 ms |
4224 KB |
Output is correct |
21 |
Correct |
4 ms |
4224 KB |
Output is correct |
22 |
Correct |
3 ms |
4224 KB |
Output is correct |
23 |
Correct |
3 ms |
4224 KB |
Output is correct |
24 |
Correct |
3 ms |
4224 KB |
Output is correct |
25 |
Correct |
3 ms |
4224 KB |
Output is correct |
26 |
Correct |
3 ms |
4224 KB |
Output is correct |
27 |
Correct |
4 ms |
4224 KB |
Output is correct |
28 |
Correct |
4 ms |
4224 KB |
Output is correct |
29 |
Correct |
3 ms |
4224 KB |
Output is correct |
30 |
Correct |
3 ms |
4224 KB |
Output is correct |
31 |
Correct |
3 ms |
4224 KB |
Output is correct |
32 |
Correct |
3 ms |
4224 KB |
Output is correct |
33 |
Correct |
3 ms |
4224 KB |
Output is correct |
34 |
Correct |
3 ms |
4224 KB |
Output is correct |
35 |
Correct |
3 ms |
4224 KB |
Output is correct |
36 |
Correct |
4 ms |
4300 KB |
Output is correct |
37 |
Correct |
3 ms |
4224 KB |
Output is correct |
38 |
Correct |
3 ms |
4296 KB |
Output is correct |
39 |
Correct |
3 ms |
4224 KB |
Output is correct |
40 |
Correct |
3 ms |
4224 KB |
Output is correct |
41 |
Correct |
4 ms |
4480 KB |
Output is correct |
42 |
Correct |
4 ms |
4480 KB |
Output is correct |
43 |
Correct |
4 ms |
4352 KB |
Output is correct |
44 |
Correct |
4 ms |
4352 KB |
Output is correct |
45 |
Correct |
4 ms |
4352 KB |
Output is correct |
46 |
Correct |
4 ms |
4352 KB |
Output is correct |
47 |
Correct |
4 ms |
4352 KB |
Output is correct |
48 |
Correct |
4 ms |
4352 KB |
Output is correct |
49 |
Correct |
4 ms |
4352 KB |
Output is correct |
50 |
Correct |
4 ms |
4352 KB |
Output is correct |
51 |
Correct |
4 ms |
4352 KB |
Output is correct |
52 |
Correct |
4 ms |
4480 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
4224 KB |
Output is correct |
2 |
Correct |
3 ms |
4224 KB |
Output is correct |
3 |
Correct |
3 ms |
4224 KB |
Output is correct |
4 |
Correct |
3 ms |
4224 KB |
Output is correct |
5 |
Correct |
4 ms |
4224 KB |
Output is correct |
6 |
Correct |
3 ms |
4224 KB |
Output is correct |
7 |
Correct |
3 ms |
4224 KB |
Output is correct |
8 |
Correct |
3 ms |
4224 KB |
Output is correct |
9 |
Correct |
3 ms |
4224 KB |
Output is correct |
10 |
Correct |
3 ms |
4224 KB |
Output is correct |
11 |
Correct |
3 ms |
4224 KB |
Output is correct |
12 |
Correct |
3 ms |
4224 KB |
Output is correct |
13 |
Correct |
3 ms |
4224 KB |
Output is correct |
14 |
Correct |
3 ms |
4224 KB |
Output is correct |
15 |
Correct |
4 ms |
4224 KB |
Output is correct |
16 |
Correct |
3 ms |
4224 KB |
Output is correct |
17 |
Correct |
4 ms |
4224 KB |
Output is correct |
18 |
Correct |
3 ms |
4224 KB |
Output is correct |
19 |
Correct |
4 ms |
4224 KB |
Output is correct |
20 |
Correct |
3 ms |
4224 KB |
Output is correct |
21 |
Correct |
4 ms |
4224 KB |
Output is correct |
22 |
Correct |
3 ms |
4224 KB |
Output is correct |
23 |
Correct |
3 ms |
4224 KB |
Output is correct |
24 |
Correct |
3 ms |
4224 KB |
Output is correct |
25 |
Correct |
3 ms |
4224 KB |
Output is correct |
26 |
Correct |
3 ms |
4224 KB |
Output is correct |
27 |
Correct |
4 ms |
4224 KB |
Output is correct |
28 |
Correct |
4 ms |
4224 KB |
Output is correct |
29 |
Correct |
3 ms |
4224 KB |
Output is correct |
30 |
Correct |
3 ms |
4224 KB |
Output is correct |
31 |
Correct |
3 ms |
4224 KB |
Output is correct |
32 |
Correct |
3 ms |
4224 KB |
Output is correct |
33 |
Correct |
3 ms |
4224 KB |
Output is correct |
34 |
Correct |
3 ms |
4224 KB |
Output is correct |
35 |
Correct |
3 ms |
4224 KB |
Output is correct |
36 |
Correct |
4 ms |
4300 KB |
Output is correct |
37 |
Correct |
3 ms |
4224 KB |
Output is correct |
38 |
Correct |
4 ms |
4224 KB |
Output is correct |
39 |
Correct |
4 ms |
4224 KB |
Output is correct |
40 |
Correct |
3 ms |
4224 KB |
Output is correct |
41 |
Correct |
3 ms |
4300 KB |
Output is correct |
42 |
Correct |
3 ms |
4224 KB |
Output is correct |
43 |
Correct |
4 ms |
4352 KB |
Output is correct |
44 |
Correct |
3 ms |
4224 KB |
Output is correct |
45 |
Correct |
3 ms |
4224 KB |
Output is correct |
46 |
Correct |
3 ms |
4224 KB |
Output is correct |
47 |
Correct |
3 ms |
4224 KB |
Output is correct |
48 |
Correct |
4 ms |
4224 KB |
Output is correct |
49 |
Correct |
3 ms |
4224 KB |
Output is correct |
50 |
Correct |
4 ms |
4428 KB |
Output is correct |
51 |
Correct |
3 ms |
4224 KB |
Output is correct |
52 |
Correct |
3 ms |
4352 KB |
Output is correct |
53 |
Correct |
4 ms |
4352 KB |
Output is correct |
54 |
Correct |
8 ms |
5760 KB |
Output is correct |
55 |
Correct |
8 ms |
5760 KB |
Output is correct |
56 |
Correct |
55 ms |
17560 KB |
Output is correct |
57 |
Correct |
55 ms |
18156 KB |
Output is correct |
58 |
Correct |
57 ms |
18028 KB |
Output is correct |
59 |
Correct |
51 ms |
18032 KB |
Output is correct |
60 |
Correct |
65 ms |
18004 KB |
Output is correct |
61 |
Correct |
54 ms |
18028 KB |
Output is correct |
62 |
Correct |
53 ms |
18032 KB |
Output is correct |
63 |
Correct |
54 ms |
18032 KB |
Output is correct |
64 |
Correct |
54 ms |
18032 KB |
Output is correct |
65 |
Correct |
54 ms |
18052 KB |
Output is correct |
66 |
Correct |
62 ms |
18032 KB |
Output is correct |
67 |
Correct |
55 ms |
18032 KB |
Output is correct |
68 |
Correct |
64 ms |
18104 KB |
Output is correct |
69 |
Correct |
3 ms |
4224 KB |
Output is correct |
70 |
Correct |
4 ms |
4224 KB |
Output is correct |
71 |
Correct |
52 ms |
18032 KB |
Output is correct |
72 |
Correct |
62 ms |
17988 KB |
Output is correct |
73 |
Correct |
54 ms |
18032 KB |
Output is correct |
74 |
Correct |
3 ms |
4224 KB |
Output is correct |
75 |
Correct |
3 ms |
4224 KB |
Output is correct |
76 |
Correct |
4 ms |
4204 KB |
Output is correct |
77 |
Correct |
4 ms |
4224 KB |
Output is correct |
78 |
Correct |
104 ms |
23028 KB |
Output is correct |
79 |
Correct |
73 ms |
18672 KB |
Output is correct |
80 |
Correct |
102 ms |
23568 KB |
Output is correct |
81 |
Correct |
74 ms |
18180 KB |
Output is correct |
82 |
Correct |
118 ms |
23500 KB |
Output is correct |
83 |
Correct |
103 ms |
20436 KB |
Output is correct |
84 |
Correct |
3 ms |
4224 KB |
Output is correct |
85 |
Correct |
3 ms |
4296 KB |
Output is correct |
86 |
Correct |
3 ms |
4224 KB |
Output is correct |
87 |
Correct |
3 ms |
4224 KB |
Output is correct |
88 |
Correct |
4 ms |
4480 KB |
Output is correct |
89 |
Correct |
4 ms |
4480 KB |
Output is correct |
90 |
Correct |
4 ms |
4352 KB |
Output is correct |
91 |
Correct |
4 ms |
4352 KB |
Output is correct |
92 |
Correct |
4 ms |
4352 KB |
Output is correct |
93 |
Correct |
4 ms |
4352 KB |
Output is correct |
94 |
Correct |
4 ms |
4352 KB |
Output is correct |
95 |
Correct |
4 ms |
4352 KB |
Output is correct |
96 |
Correct |
4 ms |
4352 KB |
Output is correct |
97 |
Correct |
4 ms |
4352 KB |
Output is correct |
98 |
Correct |
4 ms |
4352 KB |
Output is correct |
99 |
Correct |
4 ms |
4480 KB |
Output is correct |
100 |
Correct |
4 ms |
4480 KB |
Output is correct |
101 |
Correct |
11 ms |
6144 KB |
Output is correct |
102 |
Correct |
10 ms |
5888 KB |
Output is correct |
103 |
Correct |
133 ms |
23536 KB |
Output is correct |
104 |
Correct |
123 ms |
23536 KB |
Output is correct |
105 |
Correct |
115 ms |
20720 KB |
Output is correct |
106 |
Correct |
106 ms |
23408 KB |
Output is correct |
107 |
Correct |
82 ms |
18676 KB |
Output is correct |
108 |
Correct |
94 ms |
19060 KB |
Output is correct |
109 |
Correct |
60 ms |
18288 KB |
Output is correct |
110 |
Correct |
53 ms |
17904 KB |
Output is correct |
111 |
Correct |
95 ms |
22640 KB |
Output is correct |
112 |
Correct |
115 ms |
22004 KB |
Output is correct |
113 |
Correct |
74 ms |
18676 KB |
Output is correct |
114 |
Correct |
96 ms |
23408 KB |
Output is correct |
115 |
Correct |
96 ms |
23408 KB |
Output is correct |