#include<bits/stdc++.h>
#define mid (L+R)/2
using namespace std;
int i,ans,k;
int f[300001],sg[1000001];
queue<int>q1[300001];
queue<int>q2[300001];
vector<int>s;
void upd(int u,int L,int R,int pos,int y){
if(R < pos || L > pos)return;
if(R == L){sg[u]=y;return;}
else{
upd(u*2,L,mid,pos,y);
upd(u*2+1,mid+1,R,pos,y);
sg[u]=sg[u*2]+sg[u*2+1];
}
}
int get(int u,int L,int R,int a,int b){
if(b < L || a > R)return 0;
if(a <= L && b >= R)return sg[u];
return(get(u*2,L,mid,a,b)+get(u*2+1,mid+1,R,a,b));
}
int count_swaps(std:: vector<int>s){
int n=s.size();
for(i=0;i<s.size();i++){
f[i+1]=s[i];
}
for(i=1;i<=n;i++){
upd(1,1,n,i,1);
}
for(i=1;i<=n;i++){
if(f[i] < 0){
k=-(f[i]);
if(q2[k].size() == 0){
q1[k].push(i);
continue;
}
ans+=get(1,1,n,q2[k].front(),i)-1;
upd(1,1,n,q2[k].front(),2);
upd(1,1,n,i,0);
q2[k].pop();
}
if(f[i] > 0){
k=f[i];
if(q1[k].size() == 0){
q2[k].push(i);
continue;
}
ans+=get(1,1,n,q1[k].front(),i)-2;
upd(1,1,n,q1[k].front(),2);
upd(1,1,n,i,0);
q1[k].pop();
}
}
return ans;
}
Compilation message
shoes.cpp: In function 'int count_swaps(std::vector<int>)':
shoes.cpp:25:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(i=0;i<s.size();i++){
~^~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
421 ms |
404216 KB |
Output is correct |
2 |
Correct |
432 ms |
404292 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
421 ms |
404216 KB |
Output is correct |
2 |
Correct |
432 ms |
404292 KB |
Output is correct |
3 |
Correct |
419 ms |
404276 KB |
Output is correct |
4 |
Correct |
421 ms |
404268 KB |
Output is correct |
5 |
Correct |
420 ms |
404520 KB |
Output is correct |
6 |
Correct |
507 ms |
404160 KB |
Output is correct |
7 |
Correct |
420 ms |
404380 KB |
Output is correct |
8 |
Correct |
415 ms |
404216 KB |
Output is correct |
9 |
Correct |
419 ms |
404380 KB |
Output is correct |
10 |
Correct |
420 ms |
404312 KB |
Output is correct |
11 |
Correct |
419 ms |
404216 KB |
Output is correct |
12 |
Correct |
419 ms |
404308 KB |
Output is correct |
13 |
Correct |
424 ms |
404256 KB |
Output is correct |
14 |
Correct |
420 ms |
404472 KB |
Output is correct |
15 |
Correct |
421 ms |
404276 KB |
Output is correct |
16 |
Correct |
420 ms |
404308 KB |
Output is correct |
17 |
Correct |
421 ms |
404316 KB |
Output is correct |
18 |
Correct |
424 ms |
404344 KB |
Output is correct |
19 |
Correct |
424 ms |
404344 KB |
Output is correct |
20 |
Correct |
436 ms |
404384 KB |
Output is correct |
21 |
Correct |
440 ms |
404556 KB |
Output is correct |
22 |
Correct |
421 ms |
404348 KB |
Output is correct |
23 |
Correct |
420 ms |
404220 KB |
Output is correct |
24 |
Correct |
421 ms |
404240 KB |
Output is correct |
25 |
Correct |
428 ms |
404192 KB |
Output is correct |
26 |
Correct |
421 ms |
404240 KB |
Output is correct |
27 |
Correct |
422 ms |
404348 KB |
Output is correct |
28 |
Correct |
420 ms |
404344 KB |
Output is correct |
29 |
Correct |
424 ms |
404344 KB |
Output is correct |
30 |
Correct |
422 ms |
404260 KB |
Output is correct |
31 |
Correct |
416 ms |
404216 KB |
Output is correct |
32 |
Correct |
418 ms |
404216 KB |
Output is correct |
33 |
Correct |
418 ms |
404344 KB |
Output is correct |
34 |
Correct |
424 ms |
404264 KB |
Output is correct |
35 |
Correct |
414 ms |
404188 KB |
Output is correct |
36 |
Correct |
554 ms |
404344 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
421 ms |
404216 KB |
Output is correct |
2 |
Correct |
432 ms |
404292 KB |
Output is correct |
3 |
Correct |
494 ms |
404236 KB |
Output is correct |
4 |
Correct |
523 ms |
404360 KB |
Output is correct |
5 |
Correct |
525 ms |
404216 KB |
Output is correct |
6 |
Correct |
434 ms |
404388 KB |
Output is correct |
7 |
Correct |
420 ms |
404216 KB |
Output is correct |
8 |
Correct |
417 ms |
404344 KB |
Output is correct |
9 |
Correct |
422 ms |
404236 KB |
Output is correct |
10 |
Correct |
421 ms |
404352 KB |
Output is correct |
11 |
Correct |
477 ms |
404248 KB |
Output is correct |
12 |
Correct |
434 ms |
404304 KB |
Output is correct |
13 |
Correct |
424 ms |
404344 KB |
Output is correct |
14 |
Correct |
421 ms |
404212 KB |
Output is correct |
15 |
Correct |
415 ms |
404244 KB |
Output is correct |
16 |
Correct |
482 ms |
404276 KB |
Output is correct |
17 |
Correct |
457 ms |
404336 KB |
Output is correct |
18 |
Correct |
464 ms |
404320 KB |
Output is correct |
19 |
Correct |
467 ms |
404344 KB |
Output is correct |
20 |
Correct |
465 ms |
404728 KB |
Output is correct |
21 |
Correct |
451 ms |
404824 KB |
Output is correct |
22 |
Correct |
584 ms |
408708 KB |
Output is correct |
23 |
Correct |
582 ms |
409936 KB |
Output is correct |
24 |
Correct |
564 ms |
409968 KB |
Output is correct |
25 |
Incorrect |
570 ms |
410184 KB |
Output isn't correct |
26 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
415 ms |
404216 KB |
Output is correct |
2 |
Correct |
420 ms |
404344 KB |
Output is correct |
3 |
Correct |
414 ms |
404192 KB |
Output is correct |
4 |
Correct |
420 ms |
404288 KB |
Output is correct |
5 |
Incorrect |
594 ms |
408716 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
421 ms |
404216 KB |
Output is correct |
2 |
Correct |
432 ms |
404292 KB |
Output is correct |
3 |
Correct |
419 ms |
404276 KB |
Output is correct |
4 |
Correct |
421 ms |
404268 KB |
Output is correct |
5 |
Correct |
420 ms |
404520 KB |
Output is correct |
6 |
Correct |
507 ms |
404160 KB |
Output is correct |
7 |
Correct |
420 ms |
404380 KB |
Output is correct |
8 |
Correct |
415 ms |
404216 KB |
Output is correct |
9 |
Correct |
419 ms |
404380 KB |
Output is correct |
10 |
Correct |
420 ms |
404312 KB |
Output is correct |
11 |
Correct |
419 ms |
404216 KB |
Output is correct |
12 |
Correct |
419 ms |
404308 KB |
Output is correct |
13 |
Correct |
424 ms |
404256 KB |
Output is correct |
14 |
Correct |
420 ms |
404472 KB |
Output is correct |
15 |
Correct |
421 ms |
404276 KB |
Output is correct |
16 |
Correct |
420 ms |
404308 KB |
Output is correct |
17 |
Correct |
421 ms |
404316 KB |
Output is correct |
18 |
Correct |
424 ms |
404344 KB |
Output is correct |
19 |
Correct |
424 ms |
404344 KB |
Output is correct |
20 |
Correct |
436 ms |
404384 KB |
Output is correct |
21 |
Correct |
440 ms |
404556 KB |
Output is correct |
22 |
Correct |
421 ms |
404348 KB |
Output is correct |
23 |
Correct |
420 ms |
404220 KB |
Output is correct |
24 |
Correct |
421 ms |
404240 KB |
Output is correct |
25 |
Correct |
428 ms |
404192 KB |
Output is correct |
26 |
Correct |
421 ms |
404240 KB |
Output is correct |
27 |
Correct |
422 ms |
404348 KB |
Output is correct |
28 |
Correct |
420 ms |
404344 KB |
Output is correct |
29 |
Correct |
424 ms |
404344 KB |
Output is correct |
30 |
Correct |
422 ms |
404260 KB |
Output is correct |
31 |
Correct |
416 ms |
404216 KB |
Output is correct |
32 |
Correct |
418 ms |
404216 KB |
Output is correct |
33 |
Correct |
418 ms |
404344 KB |
Output is correct |
34 |
Correct |
424 ms |
404264 KB |
Output is correct |
35 |
Correct |
414 ms |
404188 KB |
Output is correct |
36 |
Correct |
554 ms |
404344 KB |
Output is correct |
37 |
Correct |
414 ms |
404344 KB |
Output is correct |
38 |
Correct |
419 ms |
404216 KB |
Output is correct |
39 |
Correct |
419 ms |
404216 KB |
Output is correct |
40 |
Correct |
417 ms |
404268 KB |
Output is correct |
41 |
Correct |
421 ms |
404344 KB |
Output is correct |
42 |
Correct |
419 ms |
404360 KB |
Output is correct |
43 |
Correct |
425 ms |
404344 KB |
Output is correct |
44 |
Correct |
421 ms |
404472 KB |
Output is correct |
45 |
Correct |
417 ms |
404392 KB |
Output is correct |
46 |
Correct |
419 ms |
404376 KB |
Output is correct |
47 |
Correct |
420 ms |
404344 KB |
Output is correct |
48 |
Correct |
415 ms |
404288 KB |
Output is correct |
49 |
Correct |
419 ms |
404484 KB |
Output is correct |
50 |
Correct |
458 ms |
404216 KB |
Output is correct |
51 |
Correct |
436 ms |
404204 KB |
Output is correct |
52 |
Correct |
424 ms |
404216 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
421 ms |
404216 KB |
Output is correct |
2 |
Correct |
432 ms |
404292 KB |
Output is correct |
3 |
Correct |
419 ms |
404276 KB |
Output is correct |
4 |
Correct |
421 ms |
404268 KB |
Output is correct |
5 |
Correct |
420 ms |
404520 KB |
Output is correct |
6 |
Correct |
507 ms |
404160 KB |
Output is correct |
7 |
Correct |
420 ms |
404380 KB |
Output is correct |
8 |
Correct |
415 ms |
404216 KB |
Output is correct |
9 |
Correct |
419 ms |
404380 KB |
Output is correct |
10 |
Correct |
420 ms |
404312 KB |
Output is correct |
11 |
Correct |
419 ms |
404216 KB |
Output is correct |
12 |
Correct |
419 ms |
404308 KB |
Output is correct |
13 |
Correct |
424 ms |
404256 KB |
Output is correct |
14 |
Correct |
420 ms |
404472 KB |
Output is correct |
15 |
Correct |
421 ms |
404276 KB |
Output is correct |
16 |
Correct |
420 ms |
404308 KB |
Output is correct |
17 |
Correct |
421 ms |
404316 KB |
Output is correct |
18 |
Correct |
424 ms |
404344 KB |
Output is correct |
19 |
Correct |
424 ms |
404344 KB |
Output is correct |
20 |
Correct |
436 ms |
404384 KB |
Output is correct |
21 |
Correct |
440 ms |
404556 KB |
Output is correct |
22 |
Correct |
421 ms |
404348 KB |
Output is correct |
23 |
Correct |
420 ms |
404220 KB |
Output is correct |
24 |
Correct |
421 ms |
404240 KB |
Output is correct |
25 |
Correct |
428 ms |
404192 KB |
Output is correct |
26 |
Correct |
421 ms |
404240 KB |
Output is correct |
27 |
Correct |
422 ms |
404348 KB |
Output is correct |
28 |
Correct |
420 ms |
404344 KB |
Output is correct |
29 |
Correct |
424 ms |
404344 KB |
Output is correct |
30 |
Correct |
422 ms |
404260 KB |
Output is correct |
31 |
Correct |
416 ms |
404216 KB |
Output is correct |
32 |
Correct |
418 ms |
404216 KB |
Output is correct |
33 |
Correct |
418 ms |
404344 KB |
Output is correct |
34 |
Correct |
424 ms |
404264 KB |
Output is correct |
35 |
Correct |
414 ms |
404188 KB |
Output is correct |
36 |
Correct |
554 ms |
404344 KB |
Output is correct |
37 |
Correct |
494 ms |
404236 KB |
Output is correct |
38 |
Correct |
523 ms |
404360 KB |
Output is correct |
39 |
Correct |
525 ms |
404216 KB |
Output is correct |
40 |
Correct |
434 ms |
404388 KB |
Output is correct |
41 |
Correct |
420 ms |
404216 KB |
Output is correct |
42 |
Correct |
417 ms |
404344 KB |
Output is correct |
43 |
Correct |
422 ms |
404236 KB |
Output is correct |
44 |
Correct |
421 ms |
404352 KB |
Output is correct |
45 |
Correct |
477 ms |
404248 KB |
Output is correct |
46 |
Correct |
434 ms |
404304 KB |
Output is correct |
47 |
Correct |
424 ms |
404344 KB |
Output is correct |
48 |
Correct |
421 ms |
404212 KB |
Output is correct |
49 |
Correct |
415 ms |
404244 KB |
Output is correct |
50 |
Correct |
482 ms |
404276 KB |
Output is correct |
51 |
Correct |
457 ms |
404336 KB |
Output is correct |
52 |
Correct |
464 ms |
404320 KB |
Output is correct |
53 |
Correct |
467 ms |
404344 KB |
Output is correct |
54 |
Correct |
465 ms |
404728 KB |
Output is correct |
55 |
Correct |
451 ms |
404824 KB |
Output is correct |
56 |
Correct |
584 ms |
408708 KB |
Output is correct |
57 |
Correct |
582 ms |
409936 KB |
Output is correct |
58 |
Correct |
564 ms |
409968 KB |
Output is correct |
59 |
Incorrect |
570 ms |
410184 KB |
Output isn't correct |
60 |
Halted |
0 ms |
0 KB |
- |