Language: C++

#include<iostream>
#include<cmath>

using namespace std;

int x1[100], y1[100], x2[100], y2[100];

int main(){
int N, M;
cin >> N >> M;
for(int i = 1; i <= N; i++){
cin >> x1[i] >> y1[i];
}
for(int i = 0; i < M; i++){
cin >> x2[i] >> y2[i];
int ans, maxim;
mini = 1000000000;
for(int j = 1; j <= N; j++){
int hoge = abs(x1 - x2) + abs(y1 - y2);
if(hoge < mini){
mini = hoge;
ans = j;
}
}
cout << ans << endl;
}
return 0;
}

Compiler output:
a.cc:6:20: error: 'int y1 [100]' redeclared as different kind of entity
    6 | int x1[100], y1[100], x2[100], y2[100];
      |                    ^
In file included from /usr/include/features.h:523,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/os_defines.h:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/c++config.h:683,
                 from /usr/include/c++/14/bits/requires_hosted.h:31,
                 from /usr/include/c++/14/iostream:38,
                 from a.cc:1:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:257:1: note: previous declaration 'double y1(double)'
  257 | __MATHCALL (y1,, (_Mdouble_));
      | ^~~~~~~~~~
a.cc: In function 'int main()':
a.cc:12:21: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   12 | cin >> x1[i] >> y1[i];
      |                     ^
a.cc:12:14: error: no match for 'operator>>' (operand types are 'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} and 'double(double) noexcept')
   12 | cin >> x1[i] >> y1[i];
      | ~~~~~~~~~~~~ ^~ ~~~~~
      |     |               |
      |     |               double(double) noexcept
      |     std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}
In file included from /usr/include/c++/14/iostream:42:
/usr/include/c++/14/istream:170:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  170 |       operator>>(bool& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:170:7: note:   conversion of argument 1 would be ill-formed:
a.cc:12:21: error: cannot bind non-const lvalue reference of type 'bool&' to a value of type 'double (*)(double) noexcept'
   12 | cin >> x1[i] >> y1[i];
      |                 ~~~~^
/usr/include/c++/14/istream:174:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  174 |       operator>>(short& __n);
      |       ^~~~~~~~
/usr/include/c++/14/istream:174:7: note:   conversion of argument 1 would be ill-formed:
a.cc:12:21: error: invalid conversion from 'double (*)(double) noexcept' to 'short int' [-fpermissive]
   12 | cin >> x1[i] >> y1[i];
      |                 ~~~~^
      |                     |
      |                     double (*)(double) noexcept
a.cc:12:21: error: cannot bind rvalue '(short int)(y1 + ((sizetype)i))' to 'short int&'
/usr/include/c++/14/istream:177:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  177 |       operator>>(unsigned short& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:177:7: note:   conversion of argument 1 would be ill-formed:
a.cc:12:21: error: invalid conversion from 'double (*)(double) noexcept' to 'short unsigned int' [-fpermissive]
   12 | cin >> x1[i] >> y1[i];
      |                 ~~~~^
      |                     |
      |                     double (*)(double) noexcept
a.cc:12:21: error: cannot bind rvalue '(short unsigned int)(y1 + ((sizetype)i))' to 'short unsigned int&'
/usr/include/c++/14/istream:181:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  181 |       operator>>(int& __n);
      |       ^~~~~~~~
/usr/include/c++/14/istream:181:7: note:   conversion of argument 1 would be ill-formed:
a.cc:12:21: error: invalid conversion from 'double (*)(double) noexcept' to 'int' [-fpermissive]
   12 | cin >> x1[i] >> y1[i];
      |                 ~~~~^
      |                     |
      |                     double (*)(double) noexcept
a.cc:12:21: error: cannot bind rvalue '(int)(y1 + ((sizetype)i))' to 'int&'
/usr/include/c++/14/istream:184:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  184 |       operator>>(unsigned int& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:184:7: note:   conversion of argument 1 would be ill-formed:
a.cc:12:21: error: invalid conversion from 'double (*)(double) noexcept' to 'unsigned int' [-fpermissive]
   12 | cin >> x1[i] >> y1[i];
      |                 ~~~~^
      |                     |
      |                     double (*)(double) noexcept
a.cc:12:21: error: cannot bind rvalue '(unsigned int)(y1 + ((sizetype)i))' to 'unsigned int&'
/usr/include/c++/14/istream:188:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  188 |       operator>>(long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:188:7: note:   conversion of argument 1 would be ill-formed:
a.cc:12:21: error: invalid conversion from 'double (*)(double) noexcept' to 'long int' [-fpermissive]
   12 | cin >> x1[i] >> y1[i];
      |                 ~~~~^
      |                     |
      |                     double (*)(double) noexcept
a.cc:12:21: error: cannot bind rvalue '(long int)(y1 + ((sizetype)i))' to 'long int&'
/usr/include/c++/14/istream:192:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  192 |       operator>>(unsigned long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:192:7: note:   conversion of argument 1 would be ill-formed:
a.cc:12:21: error: invalid conversion from 'double (*)(double) noexcept' to 'long unsigned int' [-fpermissive]
   12 | cin >> x1[i] >> y1[i];
      |                 ~~~~^
      |                     |
      |                     double (*)(double) noexcept
a.cc:12:21: error: cannot bind rvalue '(long unsigned int)(y1 + ((sizetype)i))' to 'long unsigned int&'
/usr/include/c++/14/istream:199:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  199 |       operator>>(long long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:199:7: note:   conversion of argument 1 would be ill-formed:
a.cc:12:21: error: invalid conversion from 'double (*)(double) noexcept' to 'long long int' [-fpermissive]
   12 | cin >> x1[i] >> y1[i];
      |                 ~~~~^
      |                     |
      |                     double (*)(double) noexcept
a.cc:12:21: error: cannot bind rvalue '(long long int)(y1 + ((sizetype)i))' to 'long long int&'
/usr/include/c++/14/istream:203:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  203 |       operator>>(unsigned long long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:203:7: note:   conversion of argument 1 would be ill-formed:
a.cc:12:21: error: invalid conversion from 'double (*)(double) noexcept' to 'long long unsigned int' [-fpermissive]
   12 | cin >> x1[i] >> y1[i];
      |                 ~~~~^
      |                     |
      |                     double (*)(double) noexcept
a.cc:12:21: error: cannot bind rvalue '(long long unsigned int)(y1 + ((sizetype)i))' to 'long long unsigned int&'
/usr/include/c++/14/istream:328:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  328 |       operator>>(void*& __p)
      |       ^~~~~~~~
/usr/include/c++/14/istream:328:7: note:   conversion of argument 1 would be ill-formed:
a.cc:12:21: error: invalid conversion from 'double (*)(double) noexcept' to 'void*' [-fpermissive]
   12 | cin >> x1[i] >> y1[i];
      |                 ~~~~^
      |                     |
      |                     double (*)(double) noexcept
a.cc:12:21: error: cannot bind rvalue '(void*)(y1 + ((sizetype)i))' to 'void*&'
/usr/include/c++/14/istream:122:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__istream_type& (*)(__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  122 |       operator>>(__istream_type& (*__pf)(__istream_type&))
      |       ^~~~~~~~
/usr/include/c++/14/istream:122:7: note:   conversion of argument 1 would be ill-formed:
a.cc:12:21: error: invalid conversion from 'double (*)(double) noexcept' to 'std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&)' {aka 'std::basic_istream<char>& (*)(std::basic_istream<char>&)'} [-fpermissive]
   12 | cin >> x1[i] >> y1[i];
      |                 ~~~~^
      |                     |
      |                     double (*)(double) noexcept
/usr/include/c++/14/istream:126:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__ios_type& (*)(__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>; __ios_type = std::basic_ios<char>]' (near match)
  126 |       operator>>(__ios_type& (*__pf)(__ios_type&))
      |       ^~~~~~~~
/usr/include/c++/14/istream:126:7: note:   conversion of argument 1 would be ill-formed:
a.cc:12:21: error: invalid conversion from 'd