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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. int n,a[1000000];
  4. long long mmax=-1000000000;
  5. void nhap()
  6. {
  7.     cin>>n;
  8.     for(int i=1;i<=n;i++)
  9.      cin>>a[i];
  10. }
  11. void giai()
  12. {
  13.     for(int i=1;i<n;i++)
  14.     {
  15.     	if(a[i]*a[i+1]>mmax) mmax=a[i]*a[i+1];
  16.     }
  17.     cout<<mmax;
  18. }
  19. int main()
  20. {
  21.     nhap();
  22.     giai();
  23. }
Success #stdin #stdout 0s 5304KB
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https://ideone.com/bFpwqr
language:
C++ (gcc 8.3)
created:
16 days ago
visibility:
public

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