#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
const int N = 400010;
queue <int> q[N];
int res[N];
int dp[N];
struct Segtree{
int tree[4*N];
int join(int a, int b){
return a+b;
}
void build(int node, int l,int r){
if(l == r){
tree[node] = 0;
return;
}
int mid = (l+r)/2;
build(2*node, l, mid);
build(2*node+1, mid+1, r);
tree[node] = 0;
return;
}
void update(int node, int l, int r, int pos){
if(l == r){
tree[node] = 1;
return;
}
int mid = (l+r)/2;
if(l <= pos and pos <= mid) update(2*node, l, mid, pos);
else update(2*node+1, mid+1, r, pos);
tree[node] = join(tree[2*node], tree[2*node+1]);
}
int query(int node, int l, int r, int tl, int tr){
if(l <= tl and tr <= r) return tree[node];
if(l > tr or tl > r) return 0;
int mid = (tl+tr)/2;
return join(query(2*node, l, r, tl, mid), query(2*node+1, l, r, mid+1, tr));
}
} seg;
long long count_swaps(std::vector<int> v) {
int n = v.size();
int num = n;
for(int i = v.size()-1;i >= 0;i--){
if(q[v[i]+n].empty()){
if(v[i] > 0){
res[i+1] = num;
q[n-v[i]].push(num-1);
}
else{
res[i+1] = num-1;
q[n-v[i]].push(num);
}
num -= 2;
}
else{
res[i+1] = q[v[i]+n].front();
q[v[i]+n].pop();
}
}
long long resp = 0;
for(int i = 1;i <= n;i++){
// cout << res[i] << ' ';
resp += seg.query(1, res[i], n, 1, n);
seg.update(1, 1, n, res[i]);
}
return resp;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
123 ms |
272720 KB |
Output is correct |
2 |
Correct |
127 ms |
272576 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
123 ms |
272720 KB |
Output is correct |
2 |
Correct |
127 ms |
272576 KB |
Output is correct |
3 |
Correct |
125 ms |
272724 KB |
Output is correct |
4 |
Correct |
125 ms |
272720 KB |
Output is correct |
5 |
Correct |
127 ms |
272632 KB |
Output is correct |
6 |
Correct |
125 ms |
272724 KB |
Output is correct |
7 |
Correct |
124 ms |
273040 KB |
Output is correct |
8 |
Correct |
127 ms |
272724 KB |
Output is correct |
9 |
Correct |
128 ms |
272620 KB |
Output is correct |
10 |
Correct |
125 ms |
272596 KB |
Output is correct |
11 |
Correct |
126 ms |
272720 KB |
Output is correct |
12 |
Correct |
124 ms |
272692 KB |
Output is correct |
13 |
Correct |
122 ms |
272720 KB |
Output is correct |
14 |
Correct |
131 ms |
272976 KB |
Output is correct |
15 |
Correct |
124 ms |
272536 KB |
Output is correct |
16 |
Correct |
129 ms |
272724 KB |
Output is correct |
17 |
Correct |
124 ms |
272608 KB |
Output is correct |
18 |
Correct |
132 ms |
272612 KB |
Output is correct |
19 |
Correct |
124 ms |
272656 KB |
Output is correct |
20 |
Correct |
124 ms |
272744 KB |
Output is correct |
21 |
Correct |
127 ms |
272728 KB |
Output is correct |
22 |
Correct |
123 ms |
272564 KB |
Output is correct |
23 |
Correct |
125 ms |
272716 KB |
Output is correct |
24 |
Correct |
129 ms |
272660 KB |
Output is correct |
25 |
Correct |
126 ms |
272556 KB |
Output is correct |
26 |
Correct |
129 ms |
272612 KB |
Output is correct |
27 |
Correct |
127 ms |
272724 KB |
Output is correct |
28 |
Correct |
126 ms |
272724 KB |
Output is correct |
29 |
Correct |
129 ms |
272720 KB |
Output is correct |
30 |
Correct |
125 ms |
272720 KB |
Output is correct |
31 |
Correct |
126 ms |
272724 KB |
Output is correct |
32 |
Correct |
127 ms |
272724 KB |
Output is correct |
33 |
Correct |
136 ms |
272720 KB |
Output is correct |
34 |
Correct |
128 ms |
272724 KB |
Output is correct |
35 |
Correct |
129 ms |
272724 KB |
Output is correct |
36 |
Correct |
125 ms |
272720 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
123 ms |
272720 KB |
Output is correct |
2 |
Correct |
127 ms |
272576 KB |
Output is correct |
3 |
Correct |
129 ms |
272728 KB |
Output is correct |
4 |
Correct |
126 ms |
272720 KB |
Output is correct |
5 |
Correct |
125 ms |
272720 KB |
Output is correct |
6 |
Correct |
124 ms |
272724 KB |
Output is correct |
7 |
Correct |
130 ms |
272724 KB |
Output is correct |
8 |
Correct |
125 ms |
272644 KB |
Output is correct |
9 |
Correct |
126 ms |
272600 KB |
Output is correct |
10 |
Correct |
125 ms |
272720 KB |
Output is correct |
11 |
Correct |
123 ms |
272740 KB |
Output is correct |
12 |
Correct |
131 ms |
272620 KB |
Output is correct |
13 |
Correct |
123 ms |
272544 KB |
Output is correct |
14 |
Correct |
129 ms |
272724 KB |
Output is correct |
15 |
Correct |
126 ms |
272724 KB |
Output is correct |
16 |
Correct |
127 ms |
272724 KB |
Output is correct |
17 |
Correct |
127 ms |
272724 KB |
Output is correct |
18 |
Correct |
126 ms |
272844 KB |
Output is correct |
19 |
Correct |
125 ms |
272724 KB |
Output is correct |
20 |
Correct |
129 ms |
275024 KB |
Output is correct |
21 |
Correct |
129 ms |
273272 KB |
Output is correct |
22 |
Correct |
176 ms |
277840 KB |
Output is correct |
23 |
Correct |
171 ms |
277704 KB |
Output is correct |
24 |
Correct |
173 ms |
277588 KB |
Output is correct |
25 |
Correct |
177 ms |
277696 KB |
Output is correct |
26 |
Correct |
177 ms |
277584 KB |
Output is correct |
27 |
Correct |
169 ms |
277328 KB |
Output is correct |
28 |
Correct |
185 ms |
278080 KB |
Output is correct |
29 |
Correct |
176 ms |
277852 KB |
Output is correct |
30 |
Correct |
173 ms |
277836 KB |
Output is correct |
31 |
Correct |
174 ms |
277656 KB |
Output is correct |
32 |
Correct |
209 ms |
278100 KB |
Output is correct |
33 |
Correct |
178 ms |
277704 KB |
Output is correct |
34 |
Correct |
242 ms |
277940 KB |
Output is correct |
35 |
Correct |
125 ms |
272552 KB |
Output is correct |
36 |
Correct |
191 ms |
272552 KB |
Output is correct |
37 |
Correct |
184 ms |
278204 KB |
Output is correct |
38 |
Correct |
179 ms |
278004 KB |
Output is correct |
39 |
Correct |
181 ms |
278096 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
125 ms |
272724 KB |
Output is correct |
2 |
Correct |
124 ms |
272720 KB |
Output is correct |
3 |
Correct |
124 ms |
272740 KB |
Output is correct |
4 |
Correct |
126 ms |
272612 KB |
Output is correct |
5 |
Correct |
182 ms |
277788 KB |
Output is correct |
6 |
Correct |
177 ms |
277588 KB |
Output is correct |
7 |
Correct |
182 ms |
277616 KB |
Output is correct |
8 |
Correct |
181 ms |
278096 KB |
Output is correct |
9 |
Correct |
179 ms |
277588 KB |
Output is correct |
10 |
Correct |
183 ms |
277840 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
123 ms |
272720 KB |
Output is correct |
2 |
Correct |
127 ms |
272576 KB |
Output is correct |
3 |
Correct |
125 ms |
272724 KB |
Output is correct |
4 |
Correct |
125 ms |
272720 KB |
Output is correct |
5 |
Correct |
127 ms |
272632 KB |
Output is correct |
6 |
Correct |
125 ms |
272724 KB |
Output is correct |
7 |
Correct |
124 ms |
273040 KB |
Output is correct |
8 |
Correct |
127 ms |
272724 KB |
Output is correct |
9 |
Correct |
128 ms |
272620 KB |
Output is correct |
10 |
Correct |
125 ms |
272596 KB |
Output is correct |
11 |
Correct |
126 ms |
272720 KB |
Output is correct |
12 |
Correct |
124 ms |
272692 KB |
Output is correct |
13 |
Correct |
122 ms |
272720 KB |
Output is correct |
14 |
Correct |
131 ms |
272976 KB |
Output is correct |
15 |
Correct |
124 ms |
272536 KB |
Output is correct |
16 |
Correct |
129 ms |
272724 KB |
Output is correct |
17 |
Correct |
124 ms |
272608 KB |
Output is correct |
18 |
Correct |
132 ms |
272612 KB |
Output is correct |
19 |
Correct |
124 ms |
272656 KB |
Output is correct |
20 |
Correct |
124 ms |
272744 KB |
Output is correct |
21 |
Correct |
127 ms |
272728 KB |
Output is correct |
22 |
Correct |
123 ms |
272564 KB |
Output is correct |
23 |
Correct |
125 ms |
272716 KB |
Output is correct |
24 |
Correct |
129 ms |
272660 KB |
Output is correct |
25 |
Correct |
126 ms |
272556 KB |
Output is correct |
26 |
Correct |
129 ms |
272612 KB |
Output is correct |
27 |
Correct |
127 ms |
272724 KB |
Output is correct |
28 |
Correct |
126 ms |
272724 KB |
Output is correct |
29 |
Correct |
129 ms |
272720 KB |
Output is correct |
30 |
Correct |
125 ms |
272720 KB |
Output is correct |
31 |
Correct |
126 ms |
272724 KB |
Output is correct |
32 |
Correct |
127 ms |
272724 KB |
Output is correct |
33 |
Correct |
136 ms |
272720 KB |
Output is correct |
34 |
Correct |
128 ms |
272724 KB |
Output is correct |
35 |
Correct |
129 ms |
272724 KB |
Output is correct |
36 |
Correct |
125 ms |
272720 KB |
Output is correct |
37 |
Correct |
125 ms |
272724 KB |
Output is correct |
38 |
Correct |
126 ms |
272720 KB |
Output is correct |
39 |
Correct |
127 ms |
272544 KB |
Output is correct |
40 |
Correct |
125 ms |
272604 KB |
Output is correct |
41 |
Correct |
126 ms |
272724 KB |
Output is correct |
42 |
Correct |
124 ms |
272724 KB |
Output is correct |
43 |
Correct |
125 ms |
272724 KB |
Output is correct |
44 |
Correct |
124 ms |
272724 KB |
Output is correct |
45 |
Correct |
126 ms |
272744 KB |
Output is correct |
46 |
Correct |
126 ms |
272720 KB |
Output is correct |
47 |
Correct |
128 ms |
273032 KB |
Output is correct |
48 |
Correct |
127 ms |
272720 KB |
Output is correct |
49 |
Correct |
123 ms |
272724 KB |
Output is correct |
50 |
Correct |
127 ms |
272720 KB |
Output is correct |
51 |
Correct |
125 ms |
272724 KB |
Output is correct |
52 |
Correct |
127 ms |
272668 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
123 ms |
272720 KB |
Output is correct |
2 |
Correct |
127 ms |
272576 KB |
Output is correct |
3 |
Correct |
125 ms |
272724 KB |
Output is correct |
4 |
Correct |
125 ms |
272720 KB |
Output is correct |
5 |
Correct |
127 ms |
272632 KB |
Output is correct |
6 |
Correct |
125 ms |
272724 KB |
Output is correct |
7 |
Correct |
124 ms |
273040 KB |
Output is correct |
8 |
Correct |
127 ms |
272724 KB |
Output is correct |
9 |
Correct |
128 ms |
272620 KB |
Output is correct |
10 |
Correct |
125 ms |
272596 KB |
Output is correct |
11 |
Correct |
126 ms |
272720 KB |
Output is correct |
12 |
Correct |
124 ms |
272692 KB |
Output is correct |
13 |
Correct |
122 ms |
272720 KB |
Output is correct |
14 |
Correct |
131 ms |
272976 KB |
Output is correct |
15 |
Correct |
124 ms |
272536 KB |
Output is correct |
16 |
Correct |
129 ms |
272724 KB |
Output is correct |
17 |
Correct |
124 ms |
272608 KB |
Output is correct |
18 |
Correct |
132 ms |
272612 KB |
Output is correct |
19 |
Correct |
124 ms |
272656 KB |
Output is correct |
20 |
Correct |
124 ms |
272744 KB |
Output is correct |
21 |
Correct |
127 ms |
272728 KB |
Output is correct |
22 |
Correct |
123 ms |
272564 KB |
Output is correct |
23 |
Correct |
125 ms |
272716 KB |
Output is correct |
24 |
Correct |
129 ms |
272660 KB |
Output is correct |
25 |
Correct |
126 ms |
272556 KB |
Output is correct |
26 |
Correct |
129 ms |
272612 KB |
Output is correct |
27 |
Correct |
127 ms |
272724 KB |
Output is correct |
28 |
Correct |
126 ms |
272724 KB |
Output is correct |
29 |
Correct |
129 ms |
272720 KB |
Output is correct |
30 |
Correct |
125 ms |
272720 KB |
Output is correct |
31 |
Correct |
126 ms |
272724 KB |
Output is correct |
32 |
Correct |
127 ms |
272724 KB |
Output is correct |
33 |
Correct |
136 ms |
272720 KB |
Output is correct |
34 |
Correct |
128 ms |
272724 KB |
Output is correct |
35 |
Correct |
129 ms |
272724 KB |
Output is correct |
36 |
Correct |
125 ms |
272720 KB |
Output is correct |
37 |
Correct |
129 ms |
272728 KB |
Output is correct |
38 |
Correct |
126 ms |
272720 KB |
Output is correct |
39 |
Correct |
125 ms |
272720 KB |
Output is correct |
40 |
Correct |
124 ms |
272724 KB |
Output is correct |
41 |
Correct |
130 ms |
272724 KB |
Output is correct |
42 |
Correct |
125 ms |
272644 KB |
Output is correct |
43 |
Correct |
126 ms |
272600 KB |
Output is correct |
44 |
Correct |
125 ms |
272720 KB |
Output is correct |
45 |
Correct |
123 ms |
272740 KB |
Output is correct |
46 |
Correct |
131 ms |
272620 KB |
Output is correct |
47 |
Correct |
123 ms |
272544 KB |
Output is correct |
48 |
Correct |
129 ms |
272724 KB |
Output is correct |
49 |
Correct |
126 ms |
272724 KB |
Output is correct |
50 |
Correct |
127 ms |
272724 KB |
Output is correct |
51 |
Correct |
127 ms |
272724 KB |
Output is correct |
52 |
Correct |
126 ms |
272844 KB |
Output is correct |
53 |
Correct |
125 ms |
272724 KB |
Output is correct |
54 |
Correct |
129 ms |
275024 KB |
Output is correct |
55 |
Correct |
129 ms |
273272 KB |
Output is correct |
56 |
Correct |
176 ms |
277840 KB |
Output is correct |
57 |
Correct |
171 ms |
277704 KB |
Output is correct |
58 |
Correct |
173 ms |
277588 KB |
Output is correct |
59 |
Correct |
177 ms |
277696 KB |
Output is correct |
60 |
Correct |
177 ms |
277584 KB |
Output is correct |
61 |
Correct |
169 ms |
277328 KB |
Output is correct |
62 |
Correct |
185 ms |
278080 KB |
Output is correct |
63 |
Correct |
176 ms |
277852 KB |
Output is correct |
64 |
Correct |
173 ms |
277836 KB |
Output is correct |
65 |
Correct |
174 ms |
277656 KB |
Output is correct |
66 |
Correct |
209 ms |
278100 KB |
Output is correct |
67 |
Correct |
178 ms |
277704 KB |
Output is correct |
68 |
Correct |
242 ms |
277940 KB |
Output is correct |
69 |
Correct |
125 ms |
272552 KB |
Output is correct |
70 |
Correct |
191 ms |
272552 KB |
Output is correct |
71 |
Correct |
184 ms |
278204 KB |
Output is correct |
72 |
Correct |
179 ms |
278004 KB |
Output is correct |
73 |
Correct |
181 ms |
278096 KB |
Output is correct |
74 |
Correct |
125 ms |
272724 KB |
Output is correct |
75 |
Correct |
124 ms |
272720 KB |
Output is correct |
76 |
Correct |
124 ms |
272740 KB |
Output is correct |
77 |
Correct |
126 ms |
272612 KB |
Output is correct |
78 |
Correct |
182 ms |
277788 KB |
Output is correct |
79 |
Correct |
177 ms |
277588 KB |
Output is correct |
80 |
Correct |
182 ms |
277616 KB |
Output is correct |
81 |
Correct |
181 ms |
278096 KB |
Output is correct |
82 |
Correct |
179 ms |
277588 KB |
Output is correct |
83 |
Correct |
183 ms |
277840 KB |
Output is correct |
84 |
Correct |
125 ms |
272724 KB |
Output is correct |
85 |
Correct |
126 ms |
272720 KB |
Output is correct |
86 |
Correct |
127 ms |
272544 KB |
Output is correct |
87 |
Correct |
125 ms |
272604 KB |
Output is correct |
88 |
Correct |
126 ms |
272724 KB |
Output is correct |
89 |
Correct |
124 ms |
272724 KB |
Output is correct |
90 |
Correct |
125 ms |
272724 KB |
Output is correct |
91 |
Correct |
124 ms |
272724 KB |
Output is correct |
92 |
Correct |
126 ms |
272744 KB |
Output is correct |
93 |
Correct |
126 ms |
272720 KB |
Output is correct |
94 |
Correct |
128 ms |
273032 KB |
Output is correct |
95 |
Correct |
127 ms |
272720 KB |
Output is correct |
96 |
Correct |
123 ms |
272724 KB |
Output is correct |
97 |
Correct |
127 ms |
272720 KB |
Output is correct |
98 |
Correct |
125 ms |
272724 KB |
Output is correct |
99 |
Correct |
127 ms |
272668 KB |
Output is correct |
100 |
Correct |
125 ms |
272720 KB |
Output is correct |
101 |
Correct |
130 ms |
273236 KB |
Output is correct |
102 |
Correct |
134 ms |
275040 KB |
Output is correct |
103 |
Correct |
190 ms |
277772 KB |
Output is correct |
104 |
Correct |
178 ms |
277588 KB |
Output is correct |
105 |
Correct |
183 ms |
277780 KB |
Output is correct |
106 |
Correct |
180 ms |
277604 KB |
Output is correct |
107 |
Correct |
178 ms |
277588 KB |
Output is correct |
108 |
Correct |
181 ms |
277784 KB |
Output is correct |
109 |
Correct |
179 ms |
277844 KB |
Output is correct |
110 |
Correct |
179 ms |
277904 KB |
Output is correct |
111 |
Correct |
180 ms |
278096 KB |
Output is correct |
112 |
Correct |
186 ms |
277588 KB |
Output is correct |
113 |
Correct |
185 ms |
277584 KB |
Output is correct |
114 |
Correct |
186 ms |
277652 KB |
Output is correct |
115 |
Correct |
180 ms |
277528 KB |
Output is correct |