Language: C++

#include <bits/stdc++.h>
#include <iostream>
#include <algorithm>
#include <vector>
#i#include <bits/stdc++.h>
#include <iostream>
#include <algorithm>
#include <vector>
#include <set>
#include <map>
#include <string>
#include <deque>
using namespace std;
using Graph = vector<vector<int>>;

int main() {
    //input
    int n; cin >> n;
    long long counter = 0;
    vector<long long> a(n + 2, 0);
    vector<long long> b(n + 2, 0);
    for(int i = 1; i < n + 2; i++) cin >> a[i];
    for(int i = 1; i < n + 1; i++) cin >> b[i];

    //compute
    for(int i = 1; i < n + 2; i++){
        counter += min(a[i] + a[i + 1],b[i]);
        a[i + 1] -= min(0 , a[i + 1] - max(0, b[i] - a[i]));
    } 

    //output
    cout << counter << endl;
}

Compiler output:
a.cc:5:2: error: invalid preprocessing directive #i; did you mean #if?
    5 | #i#include <bits/stdc++.h>
      |  ^
      |  if
a.cc: In function 'int main()':
a.cc:28:43: error: no matching function for call to 'max(int, __gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type)'
   28 |         a[i + 1] -= min(0 , a[i + 1] - max(0, b[i] - a[i]));
      |                                        ~~~^~~~~~~~~~~~~~~~
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:28:43: note:   deduced conflicting types for parameter 'const _Tp' ('int' and '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'})
   28 |         a[i + 1] -= min(0 , a[i + 1] - max(0, b[i] - a[i]));
      |                                        ~~~^~~~~~~~~~~~~~~~
/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:28:43: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   28 |         a[i + 1] -= min(0 , a[i + 1] - max(0, b[i] - a[i]));
      |                                        ~~~^~~~~~~~~~~~~~~~