Language: C++

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

long long sum(vector<long long>A,int mm){
long long sum=0;
 for(int i=0;i<mm;i++) sum+=A[i];
return sum;
}

long long maxl(long long a,long long b){
return b-a>0 ? b : a ;
}
long long minl(long long a,long long b){
return a-b>0 ? b : a ;
}

int main(){

 int N;
 cin>>N;
unsigned long a,b;
vector<long long>A,B,CA,CB;

 for(int i=0;i<N+1;i++){
 cin>>a;
A.push_back(a);
 }

 for(int i=0;i<N;i++){
 cin>>b;
B.push_back(b);
 }
long long l
CA.push_back(minl(B[0],A[0]));
l=max(B[0]-CA[0],0);
CB.push_back(l,A[1]));


 for(int i=1;i<N;i++){

CA.push_back(minl(B[i],A[i]-CB[i-1]));
l=max(B[i]-CA[i],0);
CB.push_back(minl(l,A[i+1]));

 }

cout<<sum(CA,N)+sum(CB,N)<<endl;

 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:34:1: error: expected initializer before 'CA'
   34 | CA.push_back(minl(B[0],A[0]));
      | ^~
a.cc:35:1: error: 'l' was not declared in this scope
   35 | l=max(B[0]-CA[0],0);
      | ^
a.cc:35:6: error: no matching function for call to 'max(__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type, int)'
   35 | l=max(B[0]-CA[0],0);
      |   ~~~^~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:35:6: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   35 | l=max(B[0]-CA[0],0);
      |   ~~~^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:35:6: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   35 | l=max(B[0]-CA[0],0);
      |   ~~~^~~~~~~~~~~~~~
a.cc:42:6: error: no matching function for call to 'max(__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type, int)'
   42 | l=max(B[i]-CA[i],0);
      |   ~~~^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:42:6: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   42 | l=max(B[i]-CA[i],0);
      |   ~~~^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:42:6: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   42 | l=max(B[i]-CA[i],0);
      |   ~~~^~~~~~~~~~~~~~