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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.  
  6. 	int N;
  7. 	cin>>N;
  8.  
  9. 	int arr[N];
  10. 	for(int i=0;i<N;i++)
  11. 	{
  12. 		cin>>arr[i];
  13. 	}
  14.  
  15. 	int sum=0;
  16. 	for(int i=0;i<N-1;i++)
  17. 	{
  18. 		if(arr[i] > arr[i+1])
  19. 		{
  20. 			sum+=arr[i]-arr[i+1];
  21. 			arr[i+1]=arr[i];
  22. 		}
  23. 	}
  24.  
  25. 	cout<<sum<<endl;
  26.  
  27. 	return 0;
  28. }
Success #stdin #stdout 0.01s 5280KB
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https://ideone.com/eu5eRL
language:
C++14 (gcc 8.3)
created:
3 hours ago
visibility:
public

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