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  1. #include <iostream>
  2. using namespace std;
  3. int n,arr[100000],x;
  4. int main() {
  5. 	cin>>n;
  6. 	for(int i=1;i<=n;i++){
  7. 		cin>>arr[i];
  8. 	}
  9. 	for(int i=2;i<=n;i++){
  10. 		if(arr[i]>arr[i-1]){
  11. 			x+=arr[i]-arr[i-1];
  12. 			arr[i]=arr[i-1];
  13. 		}
  14. 	}
  15. 	cout<<x;
  16. 	return 0;
  17. }
Success #stdin #stdout 0.01s 5320KB
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https://ideone.com/YllGGU
language:
C++ (gcc 8.3)
created:
1 hour ago
visibility:
public

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