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  1. #include<bits/stdc++.h>
  2. #define f1(i, n) for(ll i=1;i<=n;++i)
  3. #define f0(i, n) for(ll i=0;i<n;++i)
  4. #define ull unsigned long long
  5. #define ll long long
  6. #define rev(a) reverse(a.begin(),a.end())
  7. #define all(x) x.begin(),x.end()
  8. #define so(A, n) sort(A+1, A+n+1)
  9. using namespace std;
  10. const int maxn = 2e5 + 1;
  11. ll A[maxn], B[maxn];
  12. int main()
  13. {
  14. 	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  15. 	int n;
  16. 	cin >> n;
  17. 	f1(i, n) {
  18. 		cin >> A[i];
  19. 	}
  20. 	int i = 1, j = 1;
  21. 	ll sum = 0, res = LLONG_MIN;
  22. 	while (j <= n) {
  23. 		if (A[j] % 3 != 0) {
  24. 			sum += A[j];
  25. 			res = max(res, sum);
  26. 			++j;
  27. 		}
  28. 		else if (A[j] % 3 == 0 || sum < 0) {
  29. 			++j;
  30. 			i = j;
  31. 			sum = 0;
  32. 		}
  33. 	}
  34. 	cout << res;
  35.  
  36. 	return 0;
  37. }
  38.  
  39.  
Success #stdin #stdout 0s 5288KB
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-9223372036854775808
https://ideone.com/DBekK0
Bài 3 - Lê Hồng Phong 2024 - 2025
language:
C++14 (gcc 8.3)
created:
13 days ago
visibility:
public

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