Language: C++

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <climits>
#include <math.h>
using namespace std;
int main(){
    int n,ans=INT_MAX;
    int sum;
    cin>>n;
    int a[n+1];
    int qs=0,ql=0,qsu=0;
    int rs,rl=n,rsu=0;
    int pl=0,psu=0;
    int ss=n,ssu=0;
    for(int i=1;i<=n;i++){
        cin>>a[i];
    }
    for(int b=1;b<=n;b++){
        if(qsu>rsu){
            rs--;
            rsu+=a[n-i+1];
        }else{
            ql++;
            rsu+=a[i];
        }
    }
    for(int b=1;1;b++){
        if(psu>ssu){
            ss--;
            ssu+=a[n-i+1];
        }else{
            pl++;
            psu+=a[i];
        }

        sum=max(psu,qsu,rsu,ssu)-min(psu,qsu,rsu,ssu);

        if(ans>=sum){
            ans=sum;
        }else{
            break;
        }
    }

    cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:22: error: 'i' was not declared in this scope
   22 |             rsu+=a[n-i+1];
      |                      ^
a.cc:25:20: error: 'i' was not declared in this scope
   25 |             rsu+=a[i];
      |                    ^
a.cc:31:22: error: 'i' was not declared in this scope
   31 |             ssu+=a[n-i+1];
      |                      ^
a.cc:34:20: error: 'i' was not declared in this scope
   34 |             psu+=a[i];
      |                    ^
a.cc:37:16: error: no matching function for call to 'max(int&, int&, int&, int&)'
   37 |         sum=max(psu,qsu,rsu,ssu)-min(psu,qsu,rsu,ssu);
      |             ~~~^~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 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:   candidate expects 2 arguments, 4 provided
/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, 4 provided
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:3:
/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, 4 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:   candidate expects 2 arguments, 4 provided
a.cc:37:37: error: no matching function for call to 'min(int&, int&, int&, int&)'
   37 |         sum=max(psu,qsu,rsu,ssu)-min(psu,qsu,rsu,ssu);
      |                                  ~~~^~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   candidate expects 2 arguments, 4 provided
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 4 provided
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 4 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   candidate expects 2 arguments, 4 provided