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  1. #include <cstdio>
  2. #include <cstring>
  3. #include <algorithm>
  4. #include <cmath>
  5. #include <vector>
  6. #include <iostream>
  7. #include <set>
  8. #include <map>
  9. #define pb push_back
  10. #define bg begin
  11. #define ed end 
  12. #define ins insert
  13. using namespace std;
  14.  
  15. typedef long long ll;
  16. typedef vector<int> vi;
  17. typedef vector<vi> vii;
  18.  
  19. ll p[300005], sums[300005];
  20.  
  21. int main ()
  22. {
  23. 	ll n;
  24. 	scanf ("%lld", &n);
  25. 	for (int i = 0; i < n; ++i)
  26. 	{
  27. 		scanf ("%lld", &p[i]);
  28. 	}			
  29. 	sort (p, p + n);
  30. 	for (int i = 0; i < n; ++i)
  31. 	{
  32. 		if (!i)
  33. 			sums[i] = p[i];
  34. 		else
  35. 			sums[i] += p[i] + sums[i-1];	
  36. 	}
  37. 	ll ans = 2LL*sums[n-1]; ll q = 0;	
  38. 	for (ll q = 0; q < n-2; ++q)
  39. 	{
  40. 		ans += (sums[n-1]- p[q]);
  41. 	}
  42. 	printf ("%lld\n", ans);	
  43. 	return 0;
  44. }
Runtime error #stdin #stdout 0s 8028KB
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https://ideone.com/AhciAN
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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