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  1. #include<cstdio>
  2. #include<vector>
  3. #include<map>
  4. using namespace std;
  5.  
  6. int main()
  7. {
  8. 	multimap<int, int> M;
  9. 	int n, k, sum=0;
  10. 	scanf("%d %d", &n, &k);
  11. 	vector<int> arr(n);
  12. 	for(int i=0; i<n; i++)
  13. 		scanf("%d", &arr[i]);
  14.  
  15. 	for(int i=0; i<k; i++)
  16. 		M.insert({arr[i], 0});
  17.  
  18. 	for(int i=0; i+k<n; i++)
  19. 	{
  20. 	 	sum+=(M.begin())->first;
  21. 	 	M.erase(M.find(arr[i]));
  22. 	 	M.insert({arr[i+k], 0});
  23. 	}
  24.  
  25. 	printf("%d", sum);
  26. }
Success #stdin #stdout 0s 16056KB
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stdin
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stdout
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42
https://ideone.com/g5zy70
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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