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  1. #include <bits/stdc++.h>
  2. #define ll long long
  3. using namespace std;
  4.  
  5. int main() {
  6. 	ll n;
  7. 	cin >> n;
  8.  
  9. 	ll mx = INT_MIN;
  10. 	ll res = 0;
  11.  
  12. 	for(int i = 0; i < n; i++) {
  13. 		ll x;
  14. 		cin >> x;
  15.  
  16. 		if(x > mx) {
  17. 			mx = x;
  18. 		} else {
  19. 			res += (mx - x);
  20. 		}
  21. 	}
  22.  
  23. 	cout << res;
  24. 	return 0;
  25. }
Success #stdin #stdout 0.01s 5324KB
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https://ideone.com/y0g3gH
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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