Language: C++

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

typedef long long  ll;

ll MOD = 1000000007;
ll INF = 90000000000000000000;
double PI = 3.1415926535;

template<typename T>
void remove(std::vector<T>& vector, unsigned int index)
{
    vector.erase(vector.begin() + index);
}

using Graph = vector<vector<pair<ll,ll>>>;

int main(){
  ll A,B,q;
  cin >> A,B,q;
  vector<ll> S(A+2),T(B+2),Q(q),D1(A),D2(A);
  S[0] = INF;S[A+1] = INF;
  T[0] = INF;T[B+1] = INF
  for(int i = 1;i <= A;i++){
    cin >> S[i];
  }
  for(int i = 1;i <= B;i++){
    cin >> T[i];
  }
  for(int i = 0;i < Q;i++){
    cin >> Q[i];
  }
  for(int i = 0;i < q;i++){
    int a = 0,b = 0;
    ll l = -1,r = A;
    while(r-l > 1){
      ll mid = (r+l)/2;
      if(S[mid] >= a){
        r = mid;
      }else{
        l = mid;
      }
    }
    a = r;
    ll l = -1,r = B;
    while(r-l > 1){
      ll mid = (r+l)/2;
      if(S[mid] >= a){
        r = mid;
      }else{
        l = mid;
      }
    }
    b = r;
    if(a > 0 && b )
    cout << min(abs(Q[i] - max(S[a],S[b])),abs(Q[i] - min(S[a-1],T[b-1])) << endl;
  }
}

Compiler output:
a.cc:7:10: warning: integer constant is too large for its type
    7 | ll INF = 90000000000000000000;
      |          ^~~~~~~~~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:23:26: error: expected ';' before 'for'
   23 |   T[0] = INF;T[B+1] = INF
      |                          ^
      |                          ;
   24 |   for(int i = 1;i <= A;i++){
      |   ~~~                     
a.cc:24:17: error: 'i' was not declared in this scope
   24 |   for(int i = 1;i <= A;i++){
      |                 ^
a.cc:30:19: error: no match for 'operator<' (operand types are 'int' and 'std::vector<long long int>')
   30 |   for(int i = 0;i < Q;i++){
      |                 ~ ^ ~
      |                 |   |
      |                 int std::vector<long long int>
In file included from /usr/include/c++/14/regex:68,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:181,
                 from a.cc:1:
/usr/include/c++/14/bits/regex.h:1143:5: note: candidate: 'template<class _BiIter> bool std::__cxx11::operator<(const sub_match<_BiIter>&, const sub_match<_BiIter>&)'
 1143 |     operator<(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1143:5: note:   template argument deduction/substitution failed:
a.cc:30:21: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   30 |   for(int i = 0;i < Q;i++){
      |                     ^
/usr/include/c++/14/bits/regex.h:1224:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator<(__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const sub_match<_BiIter>&)'
 1224 |     operator<(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1224:5: note:   template argument deduction/substitution failed:
a.cc:30:21: note:   mismatched types 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>' and 'int'
   30 |   for(int i = 0;i < Q;i++){
      |                     ^
/usr/include/c++/14/bits/regex.h:1317:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator<(const sub_match<_BiIter>&, __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)'
 1317 |     operator<(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1317:5: note:   template argument deduction/substitution failed:
a.cc:30:21: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   30 |   for(int i = 0;i < Q;i++){
      |                     ^
/usr/include/c++/14/bits/regex.h:1391:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const typename std::iterator_traits<_Iter>::value_type*, const sub_match<_BiIter>&)'
 1391 |     operator<(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1391:5: note:   template argument deduction/substitution failed:
a.cc:30:21: note:   'std::vector<long long int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   30 |   for(int i = 0;i < Q;i++){
      |                     ^
/usr/include/c++/14/bits/regex.h:1485:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)'
 1485 |     operator<(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1485:5: note:   template argument deduction/substitution failed:
a.cc:30:21: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   30 |   for(int i = 0;i < Q;i++){
      |                     ^
/usr/include/c++/14/bits/regex.h:1560:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const typename std::iterator_traits<_Iter>::value_type&, const sub_match<_BiIter>&)'
 1560 |     operator<(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1560:5: note:   template argument deduction/substitution failed:
a.cc:30:21: note:   'std::vector<long long int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   30 |   for(int i = 0;i < Q;i++){
      |                     ^
/usr/include/c++/14/bits/regex.h:1660:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)'
 1660 |     operator<(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1660:5: note:   template argument deduction/substitution failed:
a.cc:30:21: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   30 |   for(int i = 0;i < Q;i++){
      |                     ^
In file included from /usr/include/c++/14/bits/stl_algobase.h:64,
                 from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/bits/stl_pair.h:1045:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator<(const pair<_T1, _T2>&, const pair<_T1, _T2>&)'
 1045 |     operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:1045:5: note:   template argument deduction/substitution failed:
a.cc:30:21: note:   mismatched types 'const std::pair<_T1, _T2>' and 'int'
   30 |   for(int i = 0;i < Q;i++){
      |                     ^
In file included from /usr/include/c++/14/bits/stl_algobase.h:67:
/usr/include/c++/14/bits/stl_iterator.h:448:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator<(const reverse_iterator<_Iterator>&, const reverse_iterator<_Iterator>&)'
  448 |     operator<(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:448:5: note:   template argument deduction/substitution failed:
a.cc:30:21: note:   mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
   30 |   for(int i = 0;i < Q;i++){
      |                     ^
/usr/include/c++/14/bits/stl_iterator.h:493:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator<(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)'
  493 |     operator<(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:493:5: note:   template argument deduction/substitution failed:
a.cc:30:21: note:   mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
   30 |   for(int i = 0;i < Q;i++){
      |                     ^
/usr/include/c++/14/bits/stl_iterator.h:1694:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator<(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)'
 1694 |     operator<(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1694:5: note:   template argument deduction/substitution failed:
a.cc:30:21: note:   mismatched types 'const std::move_iterator<_IteratorL>' and 'int'
   30 |   for(int i = 0;i < Q;i++){
      |                     ^
/usr/include/c++/14/bits/stl_iterator.h:1760:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator<(const move_iterator<_IteratorL>&, const move_iterator<_IteratorL>&)'
 1760 |     operator<(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1760:5: note:   template argument deduction/substitution failed:
a.cc:30:21: note:   mismatched types 'const std::move_iterator<_IteratorL>' and 'int'
   30 |   for(int i = 0;i < Q;i++){
      |                     ^
In file included from /usr/include/c++/14/bits/basic_string.h:47,
                 from /usr/include/c++/14/string:54,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52:
/usr/include/c++/14/string_view:673:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator<(basic_string_view<_CharT, _Traits>, basic_string_view<_CharT, _Traits>)'
  673 |     operator< (basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:673:5: note:   template argument deduction/substitution failed:
a.cc:30:21: note:   mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'int'
   30 |   for(int i = 0;i < Q;i++){
      |                     ^
/usr/include/c++/14/string_view:680:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator<(basic_string_view<_CharT, _Traits>, __type_identity_t<basic_string_view<_CharT, _Traits> >)'
  680 |     operator< (basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:680:5: note:   template argument deduction/substitution failed:
a.cc:30:21: note:   mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'int'
   30 |   for(int i = 0;i < Q;i++){
      |                     ^
/usr/include/c++/14/string_view:688:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator<(__type_identity_t<basic_string_view<_CharT, _Traits> >, basic_string_view<_CharT, _Traits>)'
  688 |     operator< (__type_identity_t<basic_string_view<_CharT, _Traits>> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:688:5: note:   template argument deduction/substitution failed:
a.cc:30:21: note:   'std::vector<long long int>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
   30 |   for(int i = 0;i < Q;i++){
      |                     ^
/usr/include/c++/14/bits/basic_string.h:3874:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator<(const __cxx11::basic_string<_CharT, _Traits, _Allocator>&, const __cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 3874 |     operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:3874:5: note:   template argument deduction/substitution failed:
a.cc:30:21: note:   mismatched types 'const std::__cxx11::basic_string<_CharT,