#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
//#include<bits/extc++.h>
//__gnu_pbds
int n;
int main(){
ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
cin>>n;
int arr[n];
vector<int> d;
for(int i=0;i<n;i++){
cin>>arr[i];
d.push_back(arr[i]);
}
sort(d.begin(),d.end());
d.resize(unique(d.begin(),d.end())-d.begin());
vector<int> allcnt(d.size(),0);
for(int i=0;i<n;i++){
arr[i] = lower_bound(d.begin(),d.end(),arr[i])-d.begin();
allcnt[arr[i]]++;
}
int B = sqrt(2*n);
int C = (B/2);
ll ans = 0;
for(int i=0;i<n;i++){
int maxn = 0;
int maxstuff = -1;
vector<int> cnt(d.size(),0);
for(int j=i;j<i+B && j<n ;j++){
cnt[arr[j]]++;
if(maxn<cnt[arr[j]]){
maxn = cnt[arr[j]];
maxstuff = arr[j];
}
if(2*maxn>(j-i+1) && allcnt[maxstuff]<C) ans++;
}
}
vector<int> cnt(2*n+5,0);
for(int s=0;s<d.size();s++){
if(allcnt[s]<C) continue;
ll p = 0;
int sum = 0;
fill(cnt.begin(),cnt.end(),0);
cnt[n]=1;
for(int i=0;i<n;i++){
if(arr[i]==s){
p+=cnt[(sum++)+n];
cnt[sum+n]++;
}else{
p-=cnt[(--sum)+n];
cnt[sum+n]++;
}
ans+=p;
}
}
cout<<ans<<"\n";
return 0;
}
Compilation message
Main.cpp: In function 'int main()':
Main.cpp:46:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
46 | for(int s=0;s<d.size();s++){
| ~^~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
316 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
316 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
2 ms |
328 KB |
Output is correct |
10 |
Correct |
2 ms |
340 KB |
Output is correct |
11 |
Correct |
2 ms |
332 KB |
Output is correct |
12 |
Correct |
2 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
2 ms |
340 KB |
Output is correct |
16 |
Correct |
2 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
298 ms |
2760 KB |
Output is correct |
2 |
Correct |
445 ms |
3424 KB |
Output is correct |
3 |
Correct |
211 ms |
2196 KB |
Output is correct |
4 |
Correct |
490 ms |
3632 KB |
Output is correct |
5 |
Correct |
502 ms |
3700 KB |
Output is correct |
6 |
Correct |
536 ms |
3936 KB |
Output is correct |
7 |
Correct |
539 ms |
4040 KB |
Output is correct |
8 |
Correct |
544 ms |
3936 KB |
Output is correct |
9 |
Correct |
536 ms |
3940 KB |
Output is correct |
10 |
Correct |
541 ms |
3936 KB |
Output is correct |
11 |
Correct |
479 ms |
4040 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
316 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
2 ms |
328 KB |
Output is correct |
10 |
Correct |
2 ms |
340 KB |
Output is correct |
11 |
Correct |
2 ms |
332 KB |
Output is correct |
12 |
Correct |
2 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
2 ms |
340 KB |
Output is correct |
16 |
Correct |
2 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
298 ms |
2760 KB |
Output is correct |
19 |
Correct |
445 ms |
3424 KB |
Output is correct |
20 |
Correct |
211 ms |
2196 KB |
Output is correct |
21 |
Correct |
490 ms |
3632 KB |
Output is correct |
22 |
Correct |
502 ms |
3700 KB |
Output is correct |
23 |
Correct |
536 ms |
3936 KB |
Output is correct |
24 |
Correct |
539 ms |
4040 KB |
Output is correct |
25 |
Correct |
544 ms |
3936 KB |
Output is correct |
26 |
Correct |
536 ms |
3940 KB |
Output is correct |
27 |
Correct |
541 ms |
3936 KB |
Output is correct |
28 |
Correct |
479 ms |
4040 KB |
Output is correct |
29 |
Correct |
489 ms |
4384 KB |
Output is correct |
30 |
Correct |
159 ms |
1380 KB |
Output is correct |
31 |
Correct |
530 ms |
2404 KB |
Output is correct |
32 |
Correct |
2429 ms |
5080 KB |
Output is correct |
33 |
Correct |
611 ms |
2640 KB |
Output is correct |
34 |
Correct |
702 ms |
2708 KB |
Output is correct |
35 |
Correct |
301 ms |
1864 KB |
Output is correct |
36 |
Correct |
123 ms |
1288 KB |
Output is correct |
37 |
Correct |
179 ms |
1432 KB |
Output is correct |
38 |
Correct |
559 ms |
3940 KB |
Output is correct |
39 |
Correct |
569 ms |
4072 KB |
Output is correct |
40 |
Correct |
562 ms |
3936 KB |
Output is correct |
41 |
Correct |
564 ms |
3936 KB |
Output is correct |
42 |
Correct |
570 ms |
3912 KB |
Output is correct |
43 |
Correct |
534 ms |
4436 KB |
Output is correct |
44 |
Correct |
542 ms |
4384 KB |
Output is correct |
45 |
Correct |
538 ms |
4388 KB |
Output is correct |
46 |
Correct |
541 ms |
4356 KB |
Output is correct |
47 |
Correct |
549 ms |
4296 KB |
Output is correct |
48 |
Correct |
552 ms |
4228 KB |
Output is correct |
49 |
Correct |
600 ms |
4248 KB |
Output is correct |
50 |
Correct |
521 ms |
4044 KB |
Output is correct |
51 |
Correct |
503 ms |
4144 KB |
Output is correct |
52 |
Correct |
756 ms |
4316 KB |
Output is correct |
53 |
Correct |
671 ms |
4320 KB |
Output is correct |
54 |
Correct |
573 ms |
4260 KB |
Output is correct |