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  1. #include <iostream>
  2. #include<vector>
  3. #include<set>
  4. using namespace std;
  5.  
  6. int main() {
  7. 	vector<int> nums={2,6,4,3,6,8,9};
  8. 	int low=0;
  9. 	int high=0;
  10. 	int count=0;
  11. 	int k=3;
  12. 	multiset<int> s;
  13.  
  14. 	for(int high=0;high<nums.size();high++) {
  15. 		s.insert(nums[high]);
  16. 		while(*s.rbegin()-*s.begin()>k) {
  17. 			s.erase(s.find(nums[low]));
  18. 			low++;
  19. 		} 
  20. 		count+=high-low+1;
  21. 	}
  22. 	cout<<count<<endl;
  23. 	return 0;
  24. }
Success #stdin #stdout 0.01s 5284KB
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https://ideone.com/CvLFCs
language:
C++14 (gcc 8.3)
created:
2 days ago
visibility:
public

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