Language: C++

#include<bits/stdc++.h>
using namsespace std;

int main()
{
   int n;cin>>n;
  int h[n];
  for(int i=0;i<n;i++)
  cin>>h[i];
  vector<int>dp(n,INT_MAX);
  dp[0]=0;
  for(int i=0;i<n;i++)
  {
    if(i+1<n)
    dp[i+1]=min(dp[i+1],dp[i]+abs(h[i+1]-h[i]));
    if(i+2<n)
    dp[i+2]=min(dp[i+2,dp[i]+abs(h[i+2]-h[i]));
    
}
 cout<<dp[n-1];
 return 0;

}

Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'namsespace'
    2 | using namsespace std;
      |       ^~~~~~~~~~
a.cc: In function 'int main()':
a.cc:6:10: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |    int n;cin>>n;
      |          ^~~
      |          std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:10:3: error: 'vector' was not declared in this scope
   10 |   vector<int>dp(n,INT_MAX);
      |   ^~~~~~
a.cc:10:3: note: suggested alternatives:
In file included from /usr/include/c++/14/vector:66,
                 from /usr/include/c++/14/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:53:
/usr/include/c++/14/bits/stl_vector.h:428:11: note:   'std::vector'
  428 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
/usr/include/c++/14/vector:93:13: note:   'std::pmr::vector'
   93 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |             ^~~~~~
a.cc:10:10: error: expected primary-expression before 'int'
   10 |   vector<int>dp(n,INT_MAX);
      |          ^~~
a.cc:11:3: error: 'dp' was not declared in this scope; did you mean 'dup'?
   11 |   dp[0]=0;
      |   ^~
      |   dup
a.cc:15:13: error: 'min' was not declared in this scope; did you mean 'std::min'?
   15 |     dp[i+1]=min(dp[i+1],dp[i]+abs(h[i+1]-h[i]));
      |             ^~~
      |             std::min
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: 'std::min' declared here
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:17:46: error: expected ']' before ')' token
   17 |     dp[i+2]=min(dp[i+2,dp[i]+abs(h[i+2]-h[i]));
      |                                              ^
      |                                              ]
a.cc:17:13: error: 'min' was not declared in this scope; did you mean 'std::min'?
   17 |     dp[i+2]=min(dp[i+2,dp[i]+abs(h[i+2]-h[i]));
      |             ^~~
      |             std::min
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: 'std::min' declared here
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:20:2: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   20 |  cout<<dp[n-1];
      |  ^~~~
      |  std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~