#include <bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pli pair<ll,int>
#define pil pair<int,ll>
#define fi first
#define se second
#define inf (INT_MAX/2-1)
#define infl (1LL<<60)
#define vi vector<int>
#define vl vector<ll>
#define pb push_back
#define sz(a) (int)(a).size()
#define all(a) begin(a),end(a)
#define y0 y5656
#define y1 y7878
#define y2 y9090
#define aaa system("pause");
#define dbg(x) cerr<<(#x)<<": "<<(x)<<'\n',aaa
#define dbga(x,n) cerr<<(#x)<<"[]: ";for(int _=0;_<n;_++)cerr<<x[_]<<' ';cerr<<'\n',aaa
#define dbgs(x) cerr<<(#x)<<"[stl]: ";for(auto _:x)cerr<<_<<' ';cerr<<'\n',aaa
#define dbgp(x) cerr<<(#x)<<": "<<x.fi<<' '<<x.se<<'\n',aaa
#define maxn 200000
#include "shoes.h"
using namespace std;
struct AIB {
AIB () {}
int yy[maxn+5];
int lsb (int x) {
return x&(-x);
}
void upd (int n, int x, int amt) {
x++; ///index 0 -> 1
for (; x <= n; x += lsb(x)) yy[x] += amt;
}
int qry (int x) {
int ans = 0;
x++; ///index 0 -> 1
for (; x > 0; x -= lsb(x)) ans += yy[x];
return ans;
}
int qryrg (int l, int r) {
return qry(r) - qry(l-1);
}
};
AIB aib;
stack<int> stkP[maxn+5], stkM[maxn+5];
ll count_swaps (vi v) {
int n = sz(v);
int i, j, z;
ll ans = 0;
for (i = n-1; i >= 0; i--)
if (v[i] > 0) stkP[v[i]].push(i);
else stkM[-v[i]].push(i);
for (i = 0; i < n; i++) {
if (aib.qryrg(i, i) == 1) continue; ///deja mutat
if (v[i] < 0) {
while (!stkP[-v[i]].empty() && stkP[-v[i]].top() < i) stkP[-v[i]].pop();
if (!stkP[-v[i]].empty()) {
z = stkP[-v[i]].top();
ans += z-i-1 - aib.qryrg(i+1, z); ///in aib retii ce ai sters deja
aib.upd(n, z, 1);
stkP[-v[i]].pop();
}
} else {
while (!stkM[v[i]].empty() && stkM[v[i]].top() < i) stkM[v[i]].pop();
if (!stkM[v[i]].empty()) {
z = stkM[v[i]].top();
ans += z-i - aib.qryrg(i, z);
aib.upd(n, z, 1);
stkM[v[i]].pop();
}
}
}
return ans;
}
//int main () {
// int n; cin >> n;
// int i, j, z;
// vi v(n*2);
// for (i = 0; i < 2*n; i++) cin >> v[i];
// cout << count_swaps(v);
// return 0;
//}
Compilation message
shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:55:10: warning: unused variable 'j' [-Wunused-variable]
55 | int i, j, z;
| ^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
213 ms |
269560 KB |
Output is correct |
2 |
Correct |
207 ms |
269560 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
213 ms |
269560 KB |
Output is correct |
2 |
Correct |
207 ms |
269560 KB |
Output is correct |
3 |
Correct |
211 ms |
269560 KB |
Output is correct |
4 |
Correct |
198 ms |
269560 KB |
Output is correct |
5 |
Correct |
197 ms |
269560 KB |
Output is correct |
6 |
Correct |
198 ms |
269624 KB |
Output is correct |
7 |
Correct |
196 ms |
269560 KB |
Output is correct |
8 |
Correct |
196 ms |
269560 KB |
Output is correct |
9 |
Correct |
198 ms |
269560 KB |
Output is correct |
10 |
Correct |
211 ms |
269560 KB |
Output is correct |
11 |
Correct |
199 ms |
269560 KB |
Output is correct |
12 |
Correct |
198 ms |
269560 KB |
Output is correct |
13 |
Correct |
200 ms |
269816 KB |
Output is correct |
14 |
Correct |
206 ms |
269560 KB |
Output is correct |
15 |
Correct |
197 ms |
269660 KB |
Output is correct |
16 |
Correct |
197 ms |
269560 KB |
Output is correct |
17 |
Correct |
199 ms |
269688 KB |
Output is correct |
18 |
Correct |
209 ms |
269560 KB |
Output is correct |
19 |
Correct |
216 ms |
269560 KB |
Output is correct |
20 |
Correct |
202 ms |
269560 KB |
Output is correct |
21 |
Correct |
209 ms |
269560 KB |
Output is correct |
22 |
Correct |
201 ms |
269560 KB |
Output is correct |
23 |
Correct |
215 ms |
269560 KB |
Output is correct |
24 |
Correct |
201 ms |
269688 KB |
Output is correct |
25 |
Correct |
200 ms |
269560 KB |
Output is correct |
26 |
Correct |
204 ms |
269560 KB |
Output is correct |
27 |
Correct |
199 ms |
269688 KB |
Output is correct |
28 |
Correct |
199 ms |
269560 KB |
Output is correct |
29 |
Correct |
198 ms |
269564 KB |
Output is correct |
30 |
Correct |
199 ms |
269564 KB |
Output is correct |
31 |
Correct |
199 ms |
269560 KB |
Output is correct |
32 |
Correct |
200 ms |
269560 KB |
Output is correct |
33 |
Correct |
205 ms |
269560 KB |
Output is correct |
34 |
Correct |
200 ms |
269560 KB |
Output is correct |
35 |
Correct |
199 ms |
269584 KB |
Output is correct |
36 |
Correct |
202 ms |
269560 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
213 ms |
269560 KB |
Output is correct |
2 |
Correct |
207 ms |
269560 KB |
Output is correct |
3 |
Correct |
206 ms |
269560 KB |
Output is correct |
4 |
Correct |
206 ms |
269560 KB |
Output is correct |
5 |
Correct |
198 ms |
269688 KB |
Output is correct |
6 |
Correct |
199 ms |
269564 KB |
Output is correct |
7 |
Correct |
206 ms |
269560 KB |
Output is correct |
8 |
Correct |
201 ms |
269560 KB |
Output is correct |
9 |
Correct |
200 ms |
269560 KB |
Output is correct |
10 |
Correct |
201 ms |
269688 KB |
Output is correct |
11 |
Correct |
202 ms |
269664 KB |
Output is correct |
12 |
Correct |
199 ms |
269560 KB |
Output is correct |
13 |
Correct |
205 ms |
269560 KB |
Output is correct |
14 |
Correct |
202 ms |
269560 KB |
Output is correct |
15 |
Correct |
197 ms |
269560 KB |
Output is correct |
16 |
Correct |
220 ms |
269560 KB |
Output is correct |
17 |
Correct |
205 ms |
269560 KB |
Output is correct |
18 |
Correct |
226 ms |
269688 KB |
Output is correct |
19 |
Correct |
217 ms |
269688 KB |
Output is correct |
20 |
Correct |
229 ms |
270072 KB |
Output is correct |
21 |
Correct |
216 ms |
270072 KB |
Output is correct |
22 |
Correct |
256 ms |
273044 KB |
Output is correct |
23 |
Correct |
256 ms |
274040 KB |
Output is correct |
24 |
Correct |
258 ms |
273808 KB |
Output is correct |
25 |
Correct |
248 ms |
273400 KB |
Output is correct |
26 |
Correct |
256 ms |
274136 KB |
Output is correct |
27 |
Correct |
248 ms |
273912 KB |
Output is correct |
28 |
Correct |
254 ms |
273656 KB |
Output is correct |
29 |
Correct |
257 ms |
273656 KB |
Output is correct |
30 |
Correct |
258 ms |
273656 KB |
Output is correct |
31 |
Correct |
258 ms |
273936 KB |
Output is correct |
32 |
Correct |
253 ms |
273656 KB |
Output is correct |
33 |
Correct |
251 ms |
273400 KB |
Output is correct |
34 |
Correct |
255 ms |
273656 KB |
Output is correct |
35 |
Correct |
200 ms |
269560 KB |
Output is correct |
36 |
Correct |
202 ms |
269560 KB |
Output is correct |
37 |
Correct |
252 ms |
273632 KB |
Output is correct |
38 |
Correct |
249 ms |
273656 KB |
Output is correct |
39 |
Correct |
259 ms |
273656 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
204 ms |
269560 KB |
Output is correct |
2 |
Correct |
202 ms |
269560 KB |
Output is correct |
3 |
Correct |
206 ms |
269560 KB |
Output is correct |
4 |
Correct |
213 ms |
269704 KB |
Output is correct |
5 |
Correct |
290 ms |
272248 KB |
Output is correct |
6 |
Correct |
270 ms |
272760 KB |
Output is correct |
7 |
Correct |
290 ms |
272760 KB |
Output is correct |
8 |
Correct |
250 ms |
273656 KB |
Output is correct |
9 |
Correct |
286 ms |
272888 KB |
Output is correct |
10 |
Correct |
283 ms |
272760 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
213 ms |
269560 KB |
Output is correct |
2 |
Correct |
207 ms |
269560 KB |
Output is correct |
3 |
Correct |
211 ms |
269560 KB |
Output is correct |
4 |
Correct |
198 ms |
269560 KB |
Output is correct |
5 |
Correct |
197 ms |
269560 KB |
Output is correct |
6 |
Correct |
198 ms |
269624 KB |
Output is correct |
7 |
Correct |
196 ms |
269560 KB |
Output is correct |
8 |
Correct |
196 ms |
269560 KB |
Output is correct |
9 |
Correct |
198 ms |
269560 KB |
Output is correct |
10 |
Correct |
211 ms |
269560 KB |
Output is correct |
11 |
Correct |
199 ms |
269560 KB |
Output is correct |
12 |
Correct |
198 ms |
269560 KB |
Output is correct |
13 |
Correct |
200 ms |
269816 KB |
Output is correct |
14 |
Correct |
206 ms |
269560 KB |
Output is correct |
15 |
Correct |
197 ms |
269660 KB |
Output is correct |
16 |
Correct |
197 ms |
269560 KB |
Output is correct |
17 |
Correct |
199 ms |
269688 KB |
Output is correct |
18 |
Correct |
209 ms |
269560 KB |
Output is correct |
19 |
Correct |
216 ms |
269560 KB |
Output is correct |
20 |
Correct |
202 ms |
269560 KB |
Output is correct |
21 |
Correct |
209 ms |
269560 KB |
Output is correct |
22 |
Correct |
201 ms |
269560 KB |
Output is correct |
23 |
Correct |
215 ms |
269560 KB |
Output is correct |
24 |
Correct |
201 ms |
269688 KB |
Output is correct |
25 |
Correct |
200 ms |
269560 KB |
Output is correct |
26 |
Correct |
204 ms |
269560 KB |
Output is correct |
27 |
Correct |
199 ms |
269688 KB |
Output is correct |
28 |
Correct |
199 ms |
269560 KB |
Output is correct |
29 |
Correct |
198 ms |
269564 KB |
Output is correct |
30 |
Correct |
199 ms |
269564 KB |
Output is correct |
31 |
Correct |
199 ms |
269560 KB |
Output is correct |
32 |
Correct |
200 ms |
269560 KB |
Output is correct |
33 |
Correct |
205 ms |
269560 KB |
Output is correct |
34 |
Correct |
200 ms |
269560 KB |
Output is correct |
35 |
Correct |
199 ms |
269584 KB |
Output is correct |
36 |
Correct |
202 ms |
269560 KB |
Output is correct |
37 |
Correct |
201 ms |
269688 KB |
Output is correct |
38 |
Correct |
200 ms |
269560 KB |
Output is correct |
39 |
Correct |
201 ms |
269688 KB |
Output is correct |
40 |
Correct |
199 ms |
269692 KB |
Output is correct |
41 |
Correct |
200 ms |
269560 KB |
Output is correct |
42 |
Correct |
199 ms |
269688 KB |
Output is correct |
43 |
Correct |
205 ms |
269688 KB |
Output is correct |
44 |
Correct |
198 ms |
269688 KB |
Output is correct |
45 |
Correct |
202 ms |
269560 KB |
Output is correct |
46 |
Correct |
209 ms |
269688 KB |
Output is correct |
47 |
Correct |
203 ms |
269596 KB |
Output is correct |
48 |
Correct |
203 ms |
269804 KB |
Output is correct |
49 |
Correct |
202 ms |
269560 KB |
Output is correct |
50 |
Correct |
209 ms |
269688 KB |
Output is correct |
51 |
Correct |
215 ms |
269688 KB |
Output is correct |
52 |
Correct |
210 ms |
269560 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
213 ms |
269560 KB |
Output is correct |
2 |
Correct |
207 ms |
269560 KB |
Output is correct |
3 |
Correct |
211 ms |
269560 KB |
Output is correct |
4 |
Correct |
198 ms |
269560 KB |
Output is correct |
5 |
Correct |
197 ms |
269560 KB |
Output is correct |
6 |
Correct |
198 ms |
269624 KB |
Output is correct |
7 |
Correct |
196 ms |
269560 KB |
Output is correct |
8 |
Correct |
196 ms |
269560 KB |
Output is correct |
9 |
Correct |
198 ms |
269560 KB |
Output is correct |
10 |
Correct |
211 ms |
269560 KB |
Output is correct |
11 |
Correct |
199 ms |
269560 KB |
Output is correct |
12 |
Correct |
198 ms |
269560 KB |
Output is correct |
13 |
Correct |
200 ms |
269816 KB |
Output is correct |
14 |
Correct |
206 ms |
269560 KB |
Output is correct |
15 |
Correct |
197 ms |
269660 KB |
Output is correct |
16 |
Correct |
197 ms |
269560 KB |
Output is correct |
17 |
Correct |
199 ms |
269688 KB |
Output is correct |
18 |
Correct |
209 ms |
269560 KB |
Output is correct |
19 |
Correct |
216 ms |
269560 KB |
Output is correct |
20 |
Correct |
202 ms |
269560 KB |
Output is correct |
21 |
Correct |
209 ms |
269560 KB |
Output is correct |
22 |
Correct |
201 ms |
269560 KB |
Output is correct |
23 |
Correct |
215 ms |
269560 KB |
Output is correct |
24 |
Correct |
201 ms |
269688 KB |
Output is correct |
25 |
Correct |
200 ms |
269560 KB |
Output is correct |
26 |
Correct |
204 ms |
269560 KB |
Output is correct |
27 |
Correct |
199 ms |
269688 KB |
Output is correct |
28 |
Correct |
199 ms |
269560 KB |
Output is correct |
29 |
Correct |
198 ms |
269564 KB |
Output is correct |
30 |
Correct |
199 ms |
269564 KB |
Output is correct |
31 |
Correct |
199 ms |
269560 KB |
Output is correct |
32 |
Correct |
200 ms |
269560 KB |
Output is correct |
33 |
Correct |
205 ms |
269560 KB |
Output is correct |
34 |
Correct |
200 ms |
269560 KB |
Output is correct |
35 |
Correct |
199 ms |
269584 KB |
Output is correct |
36 |
Correct |
202 ms |
269560 KB |
Output is correct |
37 |
Correct |
206 ms |
269560 KB |
Output is correct |
38 |
Correct |
206 ms |
269560 KB |
Output is correct |
39 |
Correct |
198 ms |
269688 KB |
Output is correct |
40 |
Correct |
199 ms |
269564 KB |
Output is correct |
41 |
Correct |
206 ms |
269560 KB |
Output is correct |
42 |
Correct |
201 ms |
269560 KB |
Output is correct |
43 |
Correct |
200 ms |
269560 KB |
Output is correct |
44 |
Correct |
201 ms |
269688 KB |
Output is correct |
45 |
Correct |
202 ms |
269664 KB |
Output is correct |
46 |
Correct |
199 ms |
269560 KB |
Output is correct |
47 |
Correct |
205 ms |
269560 KB |
Output is correct |
48 |
Correct |
202 ms |
269560 KB |
Output is correct |
49 |
Correct |
197 ms |
269560 KB |
Output is correct |
50 |
Correct |
220 ms |
269560 KB |
Output is correct |
51 |
Correct |
205 ms |
269560 KB |
Output is correct |
52 |
Correct |
226 ms |
269688 KB |
Output is correct |
53 |
Correct |
217 ms |
269688 KB |
Output is correct |
54 |
Correct |
229 ms |
270072 KB |
Output is correct |
55 |
Correct |
216 ms |
270072 KB |
Output is correct |
56 |
Correct |
256 ms |
273044 KB |
Output is correct |
57 |
Correct |
256 ms |
274040 KB |
Output is correct |
58 |
Correct |
258 ms |
273808 KB |
Output is correct |
59 |
Correct |
248 ms |
273400 KB |
Output is correct |
60 |
Correct |
256 ms |
274136 KB |
Output is correct |
61 |
Correct |
248 ms |
273912 KB |
Output is correct |
62 |
Correct |
254 ms |
273656 KB |
Output is correct |
63 |
Correct |
257 ms |
273656 KB |
Output is correct |
64 |
Correct |
258 ms |
273656 KB |
Output is correct |
65 |
Correct |
258 ms |
273936 KB |
Output is correct |
66 |
Correct |
253 ms |
273656 KB |
Output is correct |
67 |
Correct |
251 ms |
273400 KB |
Output is correct |
68 |
Correct |
255 ms |
273656 KB |
Output is correct |
69 |
Correct |
200 ms |
269560 KB |
Output is correct |
70 |
Correct |
202 ms |
269560 KB |
Output is correct |
71 |
Correct |
252 ms |
273632 KB |
Output is correct |
72 |
Correct |
249 ms |
273656 KB |
Output is correct |
73 |
Correct |
259 ms |
273656 KB |
Output is correct |
74 |
Correct |
204 ms |
269560 KB |
Output is correct |
75 |
Correct |
202 ms |
269560 KB |
Output is correct |
76 |
Correct |
206 ms |
269560 KB |
Output is correct |
77 |
Correct |
213 ms |
269704 KB |
Output is correct |
78 |
Correct |
290 ms |
272248 KB |
Output is correct |
79 |
Correct |
270 ms |
272760 KB |
Output is correct |
80 |
Correct |
290 ms |
272760 KB |
Output is correct |
81 |
Correct |
250 ms |
273656 KB |
Output is correct |
82 |
Correct |
286 ms |
272888 KB |
Output is correct |
83 |
Correct |
283 ms |
272760 KB |
Output is correct |
84 |
Correct |
201 ms |
269688 KB |
Output is correct |
85 |
Correct |
200 ms |
269560 KB |
Output is correct |
86 |
Correct |
201 ms |
269688 KB |
Output is correct |
87 |
Correct |
199 ms |
269692 KB |
Output is correct |
88 |
Correct |
200 ms |
269560 KB |
Output is correct |
89 |
Correct |
199 ms |
269688 KB |
Output is correct |
90 |
Correct |
205 ms |
269688 KB |
Output is correct |
91 |
Correct |
198 ms |
269688 KB |
Output is correct |
92 |
Correct |
202 ms |
269560 KB |
Output is correct |
93 |
Correct |
209 ms |
269688 KB |
Output is correct |
94 |
Correct |
203 ms |
269596 KB |
Output is correct |
95 |
Correct |
203 ms |
269804 KB |
Output is correct |
96 |
Correct |
202 ms |
269560 KB |
Output is correct |
97 |
Correct |
209 ms |
269688 KB |
Output is correct |
98 |
Correct |
215 ms |
269688 KB |
Output is correct |
99 |
Correct |
210 ms |
269560 KB |
Output is correct |
100 |
Correct |
210 ms |
269688 KB |
Output is correct |
101 |
Correct |
222 ms |
269944 KB |
Output is correct |
102 |
Correct |
214 ms |
269968 KB |
Output is correct |
103 |
Correct |
316 ms |
273272 KB |
Output is correct |
104 |
Correct |
297 ms |
273352 KB |
Output is correct |
105 |
Correct |
315 ms |
273228 KB |
Output is correct |
106 |
Correct |
327 ms |
272788 KB |
Output is correct |
107 |
Correct |
309 ms |
273144 KB |
Output is correct |
108 |
Correct |
367 ms |
273200 KB |
Output is correct |
109 |
Correct |
256 ms |
273656 KB |
Output is correct |
110 |
Correct |
340 ms |
273656 KB |
Output is correct |
111 |
Correct |
303 ms |
272760 KB |
Output is correct |
112 |
Correct |
312 ms |
273272 KB |
Output is correct |
113 |
Correct |
274 ms |
272888 KB |
Output is correct |
114 |
Correct |
294 ms |
272760 KB |
Output is correct |
115 |
Correct |
288 ms |
272852 KB |
Output is correct |