#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MAXN = (int) 1e5 + 5;
int t[8*MAXN];
int lazy[8*MAXN];
void build(int v, int tl, int tr){
if(tl == tr){
t[v] = tl;
}else{
int tm = (tl + tr) / 2;
build(2*v, tl, tm);
build(2*v+1, tm + 1, tr);
}
}
void push(int v){
t[2*v] += lazy[v];
t[2*v + 1] += lazy[v];
lazy[2*v] += lazy[v];
lazy[2*v + 1] += lazy[v];
lazy[v] = 0;
}
void upd(int v, int tl, int tr, int l, int r){
if(l > r) return;
if(tl == l && tr == r){
lazy[v]++;
t[v]++;
}else{
push(v);
int tm = (tl + tr) / 2;
upd(2*v, tl, tm, l, min(tm, r));
upd(2*v+1, tm + 1, tr, max(tm + 1, l), r);
}
}
int que(int v, int tl, int tr, int pos){
if(tl == tr) return t[v];
else{
push(v);
int tm = (tl + tr) / 2;
if(pos <= tm) return que(2*v, tl, tm, pos);
else return que(2*v + 1, tm + 1, tr, pos);
}
}
deque<int> dq[5*MAXN];
long long count_swaps(vector<int> s) {
build(1, 0, s.size() - 1);
ll ans = 0;
for(int idx = 0; idx < s.size(); idx++){
int i = s[idx];
int ot = -i;
if(dq[ot + MAXN].empty()){
dq[i + MAXN].push_back(idx);
}else{
int ooidx = dq[ot + MAXN].front();
dq[ot + MAXN].pop_front();
int oidx = que(1, 0, s.size() - 1, ooidx);
//cerr<<idx<<" "<<oidx<<endl;
if(i < 0){
ans += (idx - oidx);
}else{
ans += (idx - oidx - 1);
}
upd(1, 0, s.size() - 1, ooidx + 1, idx - 1);
}
}
return ans;
}
Compilation message
shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:58:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
58 | for(int idx = 0; idx < s.size(); idx++){
| ~~~~^~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
252 ms |
336888 KB |
Output is correct |
2 |
Correct |
262 ms |
336888 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
252 ms |
336888 KB |
Output is correct |
2 |
Correct |
262 ms |
336888 KB |
Output is correct |
3 |
Correct |
260 ms |
336888 KB |
Output is correct |
4 |
Correct |
263 ms |
336888 KB |
Output is correct |
5 |
Correct |
260 ms |
336888 KB |
Output is correct |
6 |
Correct |
257 ms |
336944 KB |
Output is correct |
7 |
Correct |
259 ms |
336888 KB |
Output is correct |
8 |
Correct |
256 ms |
336888 KB |
Output is correct |
9 |
Correct |
260 ms |
336888 KB |
Output is correct |
10 |
Correct |
259 ms |
336920 KB |
Output is correct |
11 |
Correct |
261 ms |
336888 KB |
Output is correct |
12 |
Correct |
261 ms |
336888 KB |
Output is correct |
13 |
Correct |
260 ms |
336888 KB |
Output is correct |
14 |
Correct |
257 ms |
336888 KB |
Output is correct |
15 |
Correct |
261 ms |
336888 KB |
Output is correct |
16 |
Correct |
259 ms |
336888 KB |
Output is correct |
17 |
Correct |
261 ms |
336888 KB |
Output is correct |
18 |
Correct |
261 ms |
336888 KB |
Output is correct |
19 |
Correct |
258 ms |
336888 KB |
Output is correct |
20 |
Correct |
252 ms |
336888 KB |
Output is correct |
21 |
Correct |
260 ms |
337016 KB |
Output is correct |
22 |
Correct |
260 ms |
337016 KB |
Output is correct |
23 |
Correct |
256 ms |
336888 KB |
Output is correct |
24 |
Correct |
261 ms |
336888 KB |
Output is correct |
25 |
Correct |
255 ms |
336888 KB |
Output is correct |
26 |
Correct |
256 ms |
336888 KB |
Output is correct |
27 |
Correct |
258 ms |
336888 KB |
Output is correct |
28 |
Correct |
256 ms |
336892 KB |
Output is correct |
29 |
Correct |
262 ms |
337016 KB |
Output is correct |
30 |
Correct |
256 ms |
336952 KB |
Output is correct |
31 |
Correct |
262 ms |
336888 KB |
Output is correct |
32 |
Correct |
256 ms |
336916 KB |
Output is correct |
33 |
Correct |
256 ms |
336916 KB |
Output is correct |
34 |
Correct |
260 ms |
336896 KB |
Output is correct |
35 |
Correct |
257 ms |
337016 KB |
Output is correct |
36 |
Correct |
260 ms |
336888 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
252 ms |
336888 KB |
Output is correct |
2 |
Correct |
262 ms |
336888 KB |
Output is correct |
3 |
Correct |
258 ms |
336916 KB |
Output is correct |
4 |
Correct |
260 ms |
336888 KB |
Output is correct |
5 |
Correct |
263 ms |
336888 KB |
Output is correct |
6 |
Correct |
260 ms |
336992 KB |
Output is correct |
7 |
Correct |
259 ms |
336888 KB |
Output is correct |
8 |
Correct |
258 ms |
336888 KB |
Output is correct |
9 |
Correct |
260 ms |
336948 KB |
Output is correct |
10 |
Correct |
259 ms |
336888 KB |
Output is correct |
11 |
Correct |
258 ms |
336888 KB |
Output is correct |
12 |
Correct |
258 ms |
336888 KB |
Output is correct |
13 |
Correct |
260 ms |
337016 KB |
Output is correct |
14 |
Correct |
257 ms |
337020 KB |
Output is correct |
15 |
Correct |
256 ms |
336888 KB |
Output is correct |
16 |
Correct |
257 ms |
337144 KB |
Output is correct |
17 |
Correct |
263 ms |
336888 KB |
Output is correct |
18 |
Correct |
267 ms |
337016 KB |
Output is correct |
19 |
Correct |
264 ms |
336944 KB |
Output is correct |
20 |
Correct |
286 ms |
337656 KB |
Output is correct |
21 |
Correct |
286 ms |
337656 KB |
Output is correct |
22 |
Correct |
347 ms |
342648 KB |
Output is correct |
23 |
Correct |
306 ms |
344004 KB |
Output is correct |
24 |
Correct |
325 ms |
343832 KB |
Output is correct |
25 |
Correct |
350 ms |
344184 KB |
Output is correct |
26 |
Correct |
330 ms |
343928 KB |
Output is correct |
27 |
Correct |
296 ms |
343672 KB |
Output is correct |
28 |
Correct |
359 ms |
344312 KB |
Output is correct |
29 |
Correct |
357 ms |
344312 KB |
Output is correct |
30 |
Correct |
354 ms |
344312 KB |
Output is correct |
31 |
Correct |
327 ms |
343860 KB |
Output is correct |
32 |
Correct |
351 ms |
344312 KB |
Output is correct |
33 |
Correct |
347 ms |
344056 KB |
Output is correct |
34 |
Correct |
347 ms |
344312 KB |
Output is correct |
35 |
Correct |
262 ms |
336888 KB |
Output is correct |
36 |
Correct |
261 ms |
337272 KB |
Output is correct |
37 |
Correct |
349 ms |
344432 KB |
Output is correct |
38 |
Correct |
371 ms |
344440 KB |
Output is correct |
39 |
Correct |
359 ms |
344312 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
260 ms |
336892 KB |
Output is correct |
2 |
Correct |
259 ms |
336888 KB |
Output is correct |
3 |
Correct |
258 ms |
336892 KB |
Output is correct |
4 |
Correct |
261 ms |
336916 KB |
Output is correct |
5 |
Correct |
374 ms |
342572 KB |
Output is correct |
6 |
Correct |
371 ms |
343800 KB |
Output is correct |
7 |
Correct |
383 ms |
343800 KB |
Output is correct |
8 |
Correct |
353 ms |
344312 KB |
Output is correct |
9 |
Correct |
379 ms |
343808 KB |
Output is correct |
10 |
Correct |
373 ms |
344008 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
252 ms |
336888 KB |
Output is correct |
2 |
Correct |
262 ms |
336888 KB |
Output is correct |
3 |
Correct |
260 ms |
336888 KB |
Output is correct |
4 |
Correct |
263 ms |
336888 KB |
Output is correct |
5 |
Correct |
260 ms |
336888 KB |
Output is correct |
6 |
Correct |
257 ms |
336944 KB |
Output is correct |
7 |
Correct |
259 ms |
336888 KB |
Output is correct |
8 |
Correct |
256 ms |
336888 KB |
Output is correct |
9 |
Correct |
260 ms |
336888 KB |
Output is correct |
10 |
Correct |
259 ms |
336920 KB |
Output is correct |
11 |
Correct |
261 ms |
336888 KB |
Output is correct |
12 |
Correct |
261 ms |
336888 KB |
Output is correct |
13 |
Correct |
260 ms |
336888 KB |
Output is correct |
14 |
Correct |
257 ms |
336888 KB |
Output is correct |
15 |
Correct |
261 ms |
336888 KB |
Output is correct |
16 |
Correct |
259 ms |
336888 KB |
Output is correct |
17 |
Correct |
261 ms |
336888 KB |
Output is correct |
18 |
Correct |
261 ms |
336888 KB |
Output is correct |
19 |
Correct |
258 ms |
336888 KB |
Output is correct |
20 |
Correct |
252 ms |
336888 KB |
Output is correct |
21 |
Correct |
260 ms |
337016 KB |
Output is correct |
22 |
Correct |
260 ms |
337016 KB |
Output is correct |
23 |
Correct |
256 ms |
336888 KB |
Output is correct |
24 |
Correct |
261 ms |
336888 KB |
Output is correct |
25 |
Correct |
255 ms |
336888 KB |
Output is correct |
26 |
Correct |
256 ms |
336888 KB |
Output is correct |
27 |
Correct |
258 ms |
336888 KB |
Output is correct |
28 |
Correct |
256 ms |
336892 KB |
Output is correct |
29 |
Correct |
262 ms |
337016 KB |
Output is correct |
30 |
Correct |
256 ms |
336952 KB |
Output is correct |
31 |
Correct |
262 ms |
336888 KB |
Output is correct |
32 |
Correct |
256 ms |
336916 KB |
Output is correct |
33 |
Correct |
256 ms |
336916 KB |
Output is correct |
34 |
Correct |
260 ms |
336896 KB |
Output is correct |
35 |
Correct |
257 ms |
337016 KB |
Output is correct |
36 |
Correct |
260 ms |
336888 KB |
Output is correct |
37 |
Correct |
265 ms |
336892 KB |
Output is correct |
38 |
Correct |
261 ms |
336888 KB |
Output is correct |
39 |
Correct |
266 ms |
336888 KB |
Output is correct |
40 |
Correct |
263 ms |
336888 KB |
Output is correct |
41 |
Correct |
258 ms |
336980 KB |
Output is correct |
42 |
Correct |
258 ms |
337016 KB |
Output is correct |
43 |
Correct |
262 ms |
337016 KB |
Output is correct |
44 |
Correct |
261 ms |
337016 KB |
Output is correct |
45 |
Correct |
264 ms |
337016 KB |
Output is correct |
46 |
Correct |
263 ms |
337016 KB |
Output is correct |
47 |
Correct |
273 ms |
337016 KB |
Output is correct |
48 |
Correct |
262 ms |
337016 KB |
Output is correct |
49 |
Correct |
257 ms |
337016 KB |
Output is correct |
50 |
Correct |
258 ms |
336980 KB |
Output is correct |
51 |
Correct |
263 ms |
337020 KB |
Output is correct |
52 |
Correct |
255 ms |
337016 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
252 ms |
336888 KB |
Output is correct |
2 |
Correct |
262 ms |
336888 KB |
Output is correct |
3 |
Correct |
260 ms |
336888 KB |
Output is correct |
4 |
Correct |
263 ms |
336888 KB |
Output is correct |
5 |
Correct |
260 ms |
336888 KB |
Output is correct |
6 |
Correct |
257 ms |
336944 KB |
Output is correct |
7 |
Correct |
259 ms |
336888 KB |
Output is correct |
8 |
Correct |
256 ms |
336888 KB |
Output is correct |
9 |
Correct |
260 ms |
336888 KB |
Output is correct |
10 |
Correct |
259 ms |
336920 KB |
Output is correct |
11 |
Correct |
261 ms |
336888 KB |
Output is correct |
12 |
Correct |
261 ms |
336888 KB |
Output is correct |
13 |
Correct |
260 ms |
336888 KB |
Output is correct |
14 |
Correct |
257 ms |
336888 KB |
Output is correct |
15 |
Correct |
261 ms |
336888 KB |
Output is correct |
16 |
Correct |
259 ms |
336888 KB |
Output is correct |
17 |
Correct |
261 ms |
336888 KB |
Output is correct |
18 |
Correct |
261 ms |
336888 KB |
Output is correct |
19 |
Correct |
258 ms |
336888 KB |
Output is correct |
20 |
Correct |
252 ms |
336888 KB |
Output is correct |
21 |
Correct |
260 ms |
337016 KB |
Output is correct |
22 |
Correct |
260 ms |
337016 KB |
Output is correct |
23 |
Correct |
256 ms |
336888 KB |
Output is correct |
24 |
Correct |
261 ms |
336888 KB |
Output is correct |
25 |
Correct |
255 ms |
336888 KB |
Output is correct |
26 |
Correct |
256 ms |
336888 KB |
Output is correct |
27 |
Correct |
258 ms |
336888 KB |
Output is correct |
28 |
Correct |
256 ms |
336892 KB |
Output is correct |
29 |
Correct |
262 ms |
337016 KB |
Output is correct |
30 |
Correct |
256 ms |
336952 KB |
Output is correct |
31 |
Correct |
262 ms |
336888 KB |
Output is correct |
32 |
Correct |
256 ms |
336916 KB |
Output is correct |
33 |
Correct |
256 ms |
336916 KB |
Output is correct |
34 |
Correct |
260 ms |
336896 KB |
Output is correct |
35 |
Correct |
257 ms |
337016 KB |
Output is correct |
36 |
Correct |
260 ms |
336888 KB |
Output is correct |
37 |
Correct |
258 ms |
336916 KB |
Output is correct |
38 |
Correct |
260 ms |
336888 KB |
Output is correct |
39 |
Correct |
263 ms |
336888 KB |
Output is correct |
40 |
Correct |
260 ms |
336992 KB |
Output is correct |
41 |
Correct |
259 ms |
336888 KB |
Output is correct |
42 |
Correct |
258 ms |
336888 KB |
Output is correct |
43 |
Correct |
260 ms |
336948 KB |
Output is correct |
44 |
Correct |
259 ms |
336888 KB |
Output is correct |
45 |
Correct |
258 ms |
336888 KB |
Output is correct |
46 |
Correct |
258 ms |
336888 KB |
Output is correct |
47 |
Correct |
260 ms |
337016 KB |
Output is correct |
48 |
Correct |
257 ms |
337020 KB |
Output is correct |
49 |
Correct |
256 ms |
336888 KB |
Output is correct |
50 |
Correct |
257 ms |
337144 KB |
Output is correct |
51 |
Correct |
263 ms |
336888 KB |
Output is correct |
52 |
Correct |
267 ms |
337016 KB |
Output is correct |
53 |
Correct |
264 ms |
336944 KB |
Output is correct |
54 |
Correct |
286 ms |
337656 KB |
Output is correct |
55 |
Correct |
286 ms |
337656 KB |
Output is correct |
56 |
Correct |
347 ms |
342648 KB |
Output is correct |
57 |
Correct |
306 ms |
344004 KB |
Output is correct |
58 |
Correct |
325 ms |
343832 KB |
Output is correct |
59 |
Correct |
350 ms |
344184 KB |
Output is correct |
60 |
Correct |
330 ms |
343928 KB |
Output is correct |
61 |
Correct |
296 ms |
343672 KB |
Output is correct |
62 |
Correct |
359 ms |
344312 KB |
Output is correct |
63 |
Correct |
357 ms |
344312 KB |
Output is correct |
64 |
Correct |
354 ms |
344312 KB |
Output is correct |
65 |
Correct |
327 ms |
343860 KB |
Output is correct |
66 |
Correct |
351 ms |
344312 KB |
Output is correct |
67 |
Correct |
347 ms |
344056 KB |
Output is correct |
68 |
Correct |
347 ms |
344312 KB |
Output is correct |
69 |
Correct |
262 ms |
336888 KB |
Output is correct |
70 |
Correct |
261 ms |
337272 KB |
Output is correct |
71 |
Correct |
349 ms |
344432 KB |
Output is correct |
72 |
Correct |
371 ms |
344440 KB |
Output is correct |
73 |
Correct |
359 ms |
344312 KB |
Output is correct |
74 |
Correct |
260 ms |
336892 KB |
Output is correct |
75 |
Correct |
259 ms |
336888 KB |
Output is correct |
76 |
Correct |
258 ms |
336892 KB |
Output is correct |
77 |
Correct |
261 ms |
336916 KB |
Output is correct |
78 |
Correct |
374 ms |
342572 KB |
Output is correct |
79 |
Correct |
371 ms |
343800 KB |
Output is correct |
80 |
Correct |
383 ms |
343800 KB |
Output is correct |
81 |
Correct |
353 ms |
344312 KB |
Output is correct |
82 |
Correct |
379 ms |
343808 KB |
Output is correct |
83 |
Correct |
373 ms |
344008 KB |
Output is correct |
84 |
Correct |
265 ms |
336892 KB |
Output is correct |
85 |
Correct |
261 ms |
336888 KB |
Output is correct |
86 |
Correct |
266 ms |
336888 KB |
Output is correct |
87 |
Correct |
263 ms |
336888 KB |
Output is correct |
88 |
Correct |
258 ms |
336980 KB |
Output is correct |
89 |
Correct |
258 ms |
337016 KB |
Output is correct |
90 |
Correct |
262 ms |
337016 KB |
Output is correct |
91 |
Correct |
261 ms |
337016 KB |
Output is correct |
92 |
Correct |
264 ms |
337016 KB |
Output is correct |
93 |
Correct |
263 ms |
337016 KB |
Output is correct |
94 |
Correct |
273 ms |
337016 KB |
Output is correct |
95 |
Correct |
262 ms |
337016 KB |
Output is correct |
96 |
Correct |
257 ms |
337016 KB |
Output is correct |
97 |
Correct |
258 ms |
336980 KB |
Output is correct |
98 |
Correct |
263 ms |
337020 KB |
Output is correct |
99 |
Correct |
255 ms |
337016 KB |
Output is correct |
100 |
Correct |
258 ms |
337000 KB |
Output is correct |
101 |
Correct |
266 ms |
337656 KB |
Output is correct |
102 |
Correct |
268 ms |
337656 KB |
Output is correct |
103 |
Correct |
401 ms |
343804 KB |
Output is correct |
104 |
Correct |
331 ms |
343928 KB |
Output is correct |
105 |
Correct |
366 ms |
343800 KB |
Output is correct |
106 |
Correct |
375 ms |
343928 KB |
Output is correct |
107 |
Correct |
358 ms |
343800 KB |
Output is correct |
108 |
Correct |
325 ms |
343928 KB |
Output is correct |
109 |
Correct |
348 ms |
344312 KB |
Output is correct |
110 |
Correct |
347 ms |
344312 KB |
Output is correct |
111 |
Correct |
374 ms |
343800 KB |
Output is correct |
112 |
Correct |
396 ms |
343928 KB |
Output is correct |
113 |
Correct |
378 ms |
343800 KB |
Output is correct |
114 |
Correct |
379 ms |
343928 KB |
Output is correct |
115 |
Correct |
371 ms |
343800 KB |
Output is correct |