#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
#define lch id << 1
#define rch id << 1 | 1
const int N = 2e5 + 5;
struct IT {
int n;
i64 tree[N << 2];
i64 lazy[N << 2];
void down(int id) {
if(lazy[id] == 0)
return;
tree[lch] += lazy[id];
lazy[lch] += lazy[id];
tree[rch] += lazy[id];
lazy[rch] += lazy[id];
lazy[id] = 0;
}
void build(int id, int l, int r) {
if(l == r) {
tree[id] = r;
return;
}
int m = l + r >> 1;
build(lch, l, m);
build(rch, m + 1, r);
tree[id] = max(tree[lch], tree[rch]);
}
void update(int id, int l, int r, int u, int v, int k) {
if(r<u or l>v)
return;
if(u <= l and r <= v) {
tree[id] += k;
lazy[id] += k;
return;
}
int m = l + r >> 1;
down(id);
update(lch, l, m, u, v, k);
update(rch, m + 1, r, u, v, k);
tree[id] = max(tree[lch], tree[rch]);
}
i64 get(int id, int l, int r, int pos) {
if(r<pos or l>pos)
return 0;
if(l == r)
return tree[id];
int m = l + r >> 1;
down(id);
return max(get(lch, l, m, pos), get(rch, m + 1, r, pos));
}
void create(int _n) {
n = _n;
build(1, 1, n);
}
void update(int l, int r, int k) {
return update(1, 1, n, l, r, k);
}
int get(int pos) {
return get(1, 1, n, pos);
}
} ST;
i64 count_swaps(vector<int> a) {
i64 ans = 0;
map<int, deque<int>> res;
int n = a.size();
ST.create(n);
for(int i = 0; i < n; i++) {
if(res[-a[i]].empty())
res[a[i]].emplace_back(i);
else {
int l = res[-a[i]].front() + 1;
res[-a[i]].pop_front();
int r = i+1;
ans += ST.get(r) - ST.get(l) - (a[i] > 0);
ST.update(l, r, 1);
}
}
return ans;
}
Compilation message
shoes.cpp: In member function 'void IT::build(int, int, int)':
shoes.cpp:34:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
34 | int m = l + r >> 1;
| ~~^~~
shoes.cpp: In member function 'void IT::update(int, int, int, int, int, int)':
shoes.cpp:50:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
50 | int m = l + r >> 1;
| ~~^~~
shoes.cpp: In member function 'i64 IT::get(int, int, int, int)':
shoes.cpp:64:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
64 | int m = l + r >> 1;
| ~~^~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
1 ms |
344 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
1 ms |
344 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
344 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
344 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
344 KB |
Output is correct |
27 |
Correct |
1 ms |
344 KB |
Output is correct |
28 |
Correct |
0 ms |
344 KB |
Output is correct |
29 |
Correct |
0 ms |
344 KB |
Output is correct |
30 |
Correct |
1 ms |
344 KB |
Output is correct |
31 |
Correct |
0 ms |
344 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
344 KB |
Output is correct |
34 |
Correct |
0 ms |
344 KB |
Output is correct |
35 |
Correct |
0 ms |
344 KB |
Output is correct |
36 |
Correct |
1 ms |
344 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
600 KB |
Output is correct |
7 |
Correct |
1 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
0 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
1 ms |
344 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
344 KB |
Output is correct |
20 |
Correct |
6 ms |
3160 KB |
Output is correct |
21 |
Correct |
6 ms |
3160 KB |
Output is correct |
22 |
Correct |
54 ms |
10316 KB |
Output is correct |
23 |
Correct |
46 ms |
10064 KB |
Output is correct |
24 |
Correct |
52 ms |
11088 KB |
Output is correct |
25 |
Correct |
55 ms |
11344 KB |
Output is correct |
26 |
Correct |
60 ms |
11064 KB |
Output is correct |
27 |
Correct |
45 ms |
10064 KB |
Output is correct |
28 |
Correct |
55 ms |
11344 KB |
Output is correct |
29 |
Correct |
55 ms |
11344 KB |
Output is correct |
30 |
Correct |
54 ms |
11348 KB |
Output is correct |
31 |
Correct |
55 ms |
11088 KB |
Output is correct |
32 |
Correct |
54 ms |
11348 KB |
Output is correct |
33 |
Correct |
60 ms |
11552 KB |
Output is correct |
34 |
Correct |
56 ms |
11344 KB |
Output is correct |
35 |
Correct |
1 ms |
344 KB |
Output is correct |
36 |
Correct |
1 ms |
344 KB |
Output is correct |
37 |
Correct |
54 ms |
11344 KB |
Output is correct |
38 |
Correct |
55 ms |
11348 KB |
Output is correct |
39 |
Correct |
55 ms |
11488 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
413 ms |
154264 KB |
Output is correct |
6 |
Correct |
122 ms |
23632 KB |
Output is correct |
7 |
Correct |
399 ms |
155140 KB |
Output is correct |
8 |
Correct |
57 ms |
11484 KB |
Output is correct |
9 |
Correct |
411 ms |
155476 KB |
Output is correct |
10 |
Correct |
256 ms |
82912 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
1 ms |
344 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
1 ms |
344 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
344 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
344 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
344 KB |
Output is correct |
27 |
Correct |
1 ms |
344 KB |
Output is correct |
28 |
Correct |
0 ms |
344 KB |
Output is correct |
29 |
Correct |
0 ms |
344 KB |
Output is correct |
30 |
Correct |
1 ms |
344 KB |
Output is correct |
31 |
Correct |
0 ms |
344 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
344 KB |
Output is correct |
34 |
Correct |
0 ms |
344 KB |
Output is correct |
35 |
Correct |
0 ms |
344 KB |
Output is correct |
36 |
Correct |
1 ms |
344 KB |
Output is correct |
37 |
Correct |
1 ms |
344 KB |
Output is correct |
38 |
Correct |
1 ms |
344 KB |
Output is correct |
39 |
Correct |
1 ms |
344 KB |
Output is correct |
40 |
Correct |
1 ms |
604 KB |
Output is correct |
41 |
Correct |
2 ms |
1880 KB |
Output is correct |
42 |
Correct |
2 ms |
1880 KB |
Output is correct |
43 |
Correct |
2 ms |
1624 KB |
Output is correct |
44 |
Correct |
2 ms |
1368 KB |
Output is correct |
45 |
Correct |
2 ms |
1368 KB |
Output is correct |
46 |
Correct |
2 ms |
1116 KB |
Output is correct |
47 |
Correct |
1 ms |
1116 KB |
Output is correct |
48 |
Correct |
1 ms |
856 KB |
Output is correct |
49 |
Correct |
1 ms |
600 KB |
Output is correct |
50 |
Correct |
1 ms |
348 KB |
Output is correct |
51 |
Correct |
1 ms |
344 KB |
Output is correct |
52 |
Correct |
2 ms |
1880 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
1 ms |
344 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
1 ms |
344 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
344 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
344 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
344 KB |
Output is correct |
27 |
Correct |
1 ms |
344 KB |
Output is correct |
28 |
Correct |
0 ms |
344 KB |
Output is correct |
29 |
Correct |
0 ms |
344 KB |
Output is correct |
30 |
Correct |
1 ms |
344 KB |
Output is correct |
31 |
Correct |
0 ms |
344 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
344 KB |
Output is correct |
34 |
Correct |
0 ms |
344 KB |
Output is correct |
35 |
Correct |
0 ms |
344 KB |
Output is correct |
36 |
Correct |
1 ms |
344 KB |
Output is correct |
37 |
Correct |
0 ms |
344 KB |
Output is correct |
38 |
Correct |
1 ms |
344 KB |
Output is correct |
39 |
Correct |
0 ms |
348 KB |
Output is correct |
40 |
Correct |
0 ms |
600 KB |
Output is correct |
41 |
Correct |
1 ms |
344 KB |
Output is correct |
42 |
Correct |
0 ms |
344 KB |
Output is correct |
43 |
Correct |
0 ms |
344 KB |
Output is correct |
44 |
Correct |
0 ms |
344 KB |
Output is correct |
45 |
Correct |
1 ms |
344 KB |
Output is correct |
46 |
Correct |
0 ms |
348 KB |
Output is correct |
47 |
Correct |
0 ms |
344 KB |
Output is correct |
48 |
Correct |
0 ms |
344 KB |
Output is correct |
49 |
Correct |
1 ms |
344 KB |
Output is correct |
50 |
Correct |
1 ms |
344 KB |
Output is correct |
51 |
Correct |
0 ms |
348 KB |
Output is correct |
52 |
Correct |
1 ms |
348 KB |
Output is correct |
53 |
Correct |
1 ms |
344 KB |
Output is correct |
54 |
Correct |
6 ms |
3160 KB |
Output is correct |
55 |
Correct |
6 ms |
3160 KB |
Output is correct |
56 |
Correct |
54 ms |
10316 KB |
Output is correct |
57 |
Correct |
46 ms |
10064 KB |
Output is correct |
58 |
Correct |
52 ms |
11088 KB |
Output is correct |
59 |
Correct |
55 ms |
11344 KB |
Output is correct |
60 |
Correct |
60 ms |
11064 KB |
Output is correct |
61 |
Correct |
45 ms |
10064 KB |
Output is correct |
62 |
Correct |
55 ms |
11344 KB |
Output is correct |
63 |
Correct |
55 ms |
11344 KB |
Output is correct |
64 |
Correct |
54 ms |
11348 KB |
Output is correct |
65 |
Correct |
55 ms |
11088 KB |
Output is correct |
66 |
Correct |
54 ms |
11348 KB |
Output is correct |
67 |
Correct |
60 ms |
11552 KB |
Output is correct |
68 |
Correct |
56 ms |
11344 KB |
Output is correct |
69 |
Correct |
1 ms |
344 KB |
Output is correct |
70 |
Correct |
1 ms |
344 KB |
Output is correct |
71 |
Correct |
54 ms |
11344 KB |
Output is correct |
72 |
Correct |
55 ms |
11348 KB |
Output is correct |
73 |
Correct |
55 ms |
11488 KB |
Output is correct |
74 |
Correct |
0 ms |
344 KB |
Output is correct |
75 |
Correct |
0 ms |
348 KB |
Output is correct |
76 |
Correct |
0 ms |
348 KB |
Output is correct |
77 |
Correct |
1 ms |
344 KB |
Output is correct |
78 |
Correct |
413 ms |
154264 KB |
Output is correct |
79 |
Correct |
122 ms |
23632 KB |
Output is correct |
80 |
Correct |
399 ms |
155140 KB |
Output is correct |
81 |
Correct |
57 ms |
11484 KB |
Output is correct |
82 |
Correct |
411 ms |
155476 KB |
Output is correct |
83 |
Correct |
256 ms |
82912 KB |
Output is correct |
84 |
Correct |
1 ms |
344 KB |
Output is correct |
85 |
Correct |
1 ms |
344 KB |
Output is correct |
86 |
Correct |
1 ms |
344 KB |
Output is correct |
87 |
Correct |
1 ms |
604 KB |
Output is correct |
88 |
Correct |
2 ms |
1880 KB |
Output is correct |
89 |
Correct |
2 ms |
1880 KB |
Output is correct |
90 |
Correct |
2 ms |
1624 KB |
Output is correct |
91 |
Correct |
2 ms |
1368 KB |
Output is correct |
92 |
Correct |
2 ms |
1368 KB |
Output is correct |
93 |
Correct |
2 ms |
1116 KB |
Output is correct |
94 |
Correct |
1 ms |
1116 KB |
Output is correct |
95 |
Correct |
1 ms |
856 KB |
Output is correct |
96 |
Correct |
1 ms |
600 KB |
Output is correct |
97 |
Correct |
1 ms |
348 KB |
Output is correct |
98 |
Correct |
1 ms |
344 KB |
Output is correct |
99 |
Correct |
2 ms |
1880 KB |
Output is correct |
100 |
Correct |
2 ms |
1880 KB |
Output is correct |
101 |
Correct |
23 ms |
16308 KB |
Output is correct |
102 |
Correct |
14 ms |
6232 KB |
Output is correct |
103 |
Correct |
455 ms |
155088 KB |
Output is correct |
104 |
Correct |
344 ms |
153936 KB |
Output is correct |
105 |
Correct |
286 ms |
93192 KB |
Output is correct |
106 |
Correct |
414 ms |
154960 KB |
Output is correct |
107 |
Correct |
125 ms |
26960 KB |
Output is correct |
108 |
Correct |
144 ms |
41952 KB |
Output is correct |
109 |
Correct |
58 ms |
11324 KB |
Output is correct |
110 |
Correct |
54 ms |
11340 KB |
Output is correct |
111 |
Correct |
396 ms |
139088 KB |
Output is correct |
112 |
Correct |
382 ms |
122964 KB |
Output is correct |
113 |
Correct |
154 ms |
28784 KB |
Output is correct |
114 |
Correct |
395 ms |
154960 KB |
Output is correct |
115 |
Correct |
397 ms |
154960 KB |
Output is correct |