Main.cc:3:10: error: ‘int y1’ redeclared as different kind of symbol
int n,x1,y1,x2,y2;
^~
In file included from /usr/include/features.h:424:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/os_defines.h:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/c++config.h:533,
from /usr/include/c++/7/cassert:43,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:33,
from Main.cc:1:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:221:1: note: previous declaration ‘double y1(double)’
__MATHCALL (y1,, (_Mdouble_));
^
Main.cc: In function ‘int main()’:
Main.cc:8:10: error: no match for ‘operator>>’ (operand types are ‘std::basic_istream::__istream_type {aka std::basic_istream}’ and ‘double(double) throw ()’)
cin>>x1>>y1>>x2>>y2;
~~~~~~~^~~~
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:120:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__istream_type& (*)(std::basic_istream<_CharT, _Traits>::__istream_type&)) [with _CharT = char; _Traits = std::char_traits; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream]
operator>>(__istream_type& (*__pf)(__istream_type&))
^~~~~~~~
/usr/include/c++/7/istream:120:7: note: conversion of argument 1 would be ill-formed:
Main.cc:8:12: error: invalid conversion from ‘double (*)(double) throw ()’ to ‘std::basic_istream::__istream_type& (*)(std::basic_istream::__istream_type&) {aka std::basic_istream& (*)(std::basic_istream&)}’ [-fpermissive]
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:124:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__ios_type& (*)(std::basic_istream<_CharT, _Traits>::__ios_type&)) [with _CharT = char; _Traits = std::char_traits; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream; std::basic_istream<_CharT, _Traits>::__ios_type = std::basic_ios]
operator>>(__ios_type& (*__pf)(__ios_type&))
^~~~~~~~
/usr/include/c++/7/istream:124:7: note: conversion of argument 1 would be ill-formed:
Main.cc:8:12: error: invalid conversion from ‘double (*)(double) throw ()’ to ‘std::basic_istream::__ios_type& (*)(std::basic_istream::__ios_type&) {aka std::basic_ios& (*)(std::basic_ios&)}’ [-fpermissive]
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:131:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream]
operator>>(ios_base& (*__pf)(ios_base&))
^~~~~~~~
/usr/include/c++/7/istream:131:7: note: conversion of argument 1 would be ill-formed:
Main.cc:8:12: error: invalid conversion from ‘double (*)(double) throw ()’ to ‘std::ios_base& (*)(std::ios_base&)’ [-fpermissive]
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:168:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream]
operator>>(bool& __n)
^~~~~~~~
/usr/include/c++/7/istream:168:7: note: conversion of argument 1 would be ill-formed:
Main.cc:8:12: warning: the address of ‘double y1(double)’ will never be NULL [-Waddress]
cin>>x1>>y1>>x2>>y2;
^~
Main.cc:8:12: error: cannot bind non-const lvalue reference of type ‘bool&’ to an rvalue of type ‘bool’
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:172:7: note: candidate: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits]
operator>>(short& __n);
^~~~~~~~
/usr/include/c++/7/istream:172:7: note: conversion of argument 1 would be ill-formed:
Main.cc:8:12: error: invalid conversion from ‘double (*)(double) throw ()’ to ‘short int’ [-fpermissive]
cin>>x1>>y1>>x2>>y2;
^~
Main.cc:8:12: error: cannot bind rvalue ‘(short int)y1’ to ‘short int&’
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:175:7: 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; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream]
operator>>(unsigned short& __n)
^~~~~~~~
/usr/include/c++/7/istream:175:7: note: conversion of argument 1 would be ill-formed:
Main.cc:8:12: error: invalid conversion from ‘double (*)(double) throw ()’ to ‘short unsigned int’ [-fpermissive]
cin>>x1>>y1>>x2>>y2;
^~
Main.cc:8:12: error: cannot bind rvalue ‘(short unsigned int)y1’ to ‘short unsigned int&’
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:179:7: note: candidate: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits]
operator>>(int& __n);
^~~~~~~~
/usr/include/c++/7/istream:179:7: note: conversion of argument 1 would be ill-formed:
Main.cc:8:12: error: invalid conversion from ‘double (*)(double) throw ()’ to ‘int’ [-fpermissive]
cin>>x1>>y1>>x2>>y2;
^~
Main.cc:8:12: error: cannot bind rvalue ‘(int)y1’ to ‘int&’
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:182:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream]
operator>>(unsigned int& __n)
^~~~~~~~
/usr/include/c++/7/istream:182:7: note: conversion of argument 1 would be ill-formed:
Main.cc:8:12: error: invalid conversion from ‘double (*)(double) throw ()’ to ‘unsigned int’ [-fpermissive]
cin>>x1>>y1>>x2>>y2;
^~
Main.cc:8:12: error: cannot bind rvalue ‘(unsigned int)y1’ to ‘unsigned int&’
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:186:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream]
operator>>(long& __n)
^~~~~~~~
/usr/include/c++/7/istream:186:7: note: conversion of argument 1 would be ill-formed:
Main.cc:8:12: error: invalid conversion from ‘double (*)(double) throw ()’ to ‘long int’ [-fpermissive]
cin>>x1>>y1>>x2>>y2;
^~
Main.cc:8:12: error: cannot bind rvalue ‘(long int)y1’ to ‘long int&’
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:190:7: 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; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream]
operator>>(unsigned long& __n)
^~~~~~~~
/usr/include/c++/7/istream:190:7: note: conversion of argument 1 would be ill-formed:
Main.cc:8:12: error: invalid conversion from ‘double (*)(double) throw ()’ to ‘long unsigned int’ [-fpermissive]
cin>>x1>>y1>>x2>>y2;
^~
Main.cc:8:12: error: cannot bind rvalue ‘(long unsigned int)y1’ to ‘long unsigned int&’
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:195:7: 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; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream]
operator>>(long long& __n)
^~~~~~~~
/usr/include/c++/7/istream:195:7: note: conversion of argument 1 would be ill-formed:
Main.cc:8:12: error: invalid conversion from ‘double (*)(double) throw ()’ to ‘long long int’ [-fpermissive]
cin>>x1>>y1>>x2>>y2;
^~
Main.cc:8:12: error: cannot bind rvalue ‘(long long int)y1’ to ‘long long int&’
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:199:7: 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; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream]
operator>>(unsigned long long& __n)
^~~~~~~~
/usr/include/c++/7/istream:199:7: note: conversion of argument 1 would be ill-formed:
Main.cc:8:12: error: invalid conversion from ‘double (*)(double) throw ()’ to ‘long long unsigned int’ [-fpermissive]
cin>>x1>>y1>>x2>>y2;
^~
Main.cc:8:12: error: cannot bind rvalue ‘(long long unsigned int)y1’ to ‘long long unsigned int&’
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:235:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream]
operator>>(void*& __p)
^~~~~~~~
/usr/include/c++/7/istream:235:7: note: conversion of argument 1 would be ill-formed:
Main.cc:8:12: error: invalid conversion from ‘double (*)(double) throw ()’ to ‘void*’ [-fpermissive]
cin>>x1>>y1>>x2>>y2;
^~
Main.cc:8:12: error: cannot bind rvalue ‘(void*)y1’ to ‘void*&’
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:214:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(float&) [with _CharT = char; _Traits = std::char_traits; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream]
operator>>(float& __f)
^~~~~~~~
/usr/include/c++/7/istream:214:7: note: no known conversion for argument 1 from ‘double(double) throw ()’ to ‘float&’
/usr/include/c++/7/istream:218:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(double&) [with _CharT = char; _Traits = std::char_traits; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream]
operator>>(double& __f)
^~~~~~~~
/usr/include/c++/7/istream:218:7: note: no known conversion for argument 1 from ‘double(double) throw ()’ to ‘double&’
/usr/include/c++/7/istream:222:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long double&) [with _CharT = char; _Traits = std::char_traits; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream]
operator>>(long double& __f)
^~~~~~~~
/usr/include/c++/7/istream:222:7: note: no known conversion for argument 1 from ‘double(double) throw ()’ to ‘long double&’
/usr/include/c++/7/istream:259:7: note: candidate: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__streambuf_type*) [with _CharT = char; _Traits = std::char_traits; std::basic_istream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf]
operator>>(__streambuf_type* __sb);
^~~~~~~~
/usr/include/c++/7/istream:259:7: note: no known conversion for argument 1 from ‘double(double) throw ()’ to ‘std::basic_istream::__streambuf_type* {aka std::basic_streambuf*}’
In file included from /usr/include/c++/7/string:53:0,
from /usr/include/c++/7/bits/locale_classes.h:40,
from /usr/include/c++/7/bits/ios_base.h:41,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/istream:38,
from /usr/include/c++/7/sstream:38,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/bits/basic_string.tcc:1465:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
operator>>(basic_istream<_CharT, _Traits>& __in,
^~~~~~~~
/usr/include/c++/7/bits/basic_string.tcc:1465:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: mismatched types ‘std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’ and ‘double(double) throw ()’
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/c++/7/istream:991:0,
from /usr/include/c++/7/sstream:38,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/bits/istream.tcc:963:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT2*)
operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s)
^~~~~~~~
/usr/include/c++/7/bits/istream.tcc:963:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: deduced conflicting types for parameter ‘_CharT2’ (‘char’ and ‘double(double) throw ()’)
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/c++/7/istream:991:0,
from /usr/include/c++/7/sstream:38,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/bits/istream.tcc:931:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT&)
operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c)
^~~~~~~~
/usr/include/c++/7/bits/istream.tcc:931:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: deduced conflicting types for parameter ‘_CharT’ (‘char’ and ‘double(double) throw ()’)
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:756:5: note: candidate: template std::basic_istream& std::operator>>(std::basic_istream&, unsigned char&)
operator>>(basic_istream& __in, unsigned char& __c)
^~~~~~~~
/usr/include/c++/7/istream:756:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: cannot convert ‘y1’ (type ‘double(double) throw ()’) to type ‘unsigned char&’
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:761:5: note: candidate: template std::basic_istream& std::operator>>(std::basic_istream&, signed char&)
operator>>(basic_istream& __in, signed char& __c)
^~~~~~~~
/usr/include/c++/7/istream:761:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: cannot convert ‘y1’ (type ‘double(double) throw ()’) to type ‘signed char&’
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:803:5: note: candidate: template std::basic_istream& std::operator>>(std::basic_istream&, unsigned char*)
operator>>(basic_istream& __in, unsigned char* __s)
^~~~~~~~
/usr/include/c++/7/istream:803:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: cannot convert ‘y1’ (type ‘double(double) throw ()’) to type ‘unsigned char*’
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:808:5: note: candidate: template std::basic_istream& std::operator>>(std::basic_istream&, signed char*)
operator>>(basic_istream& __in, signed char* __s)
^~~~~~~~
/usr/include/c++/7/istream:808:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: cannot convert ‘y1’ (type ‘double(double) throw ()’) to type ‘signed char*’
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/c++/7/sstream:38:0,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/istream:980:5: note: candidate: template typename std::enable_if >, std::__is_convertible_to_basic_istream<_Istream>, std::__is_extractable::__istream_type, _Tp&&, void> >::value, typename std::__is_convertible_to_basic_istream<_Tp>::__istream_type>::type std::operator>>(_Istream&&, _Tp&&)
operator>>(_Istream&& __is, _Tp&& __x)
^~~~~~~~
/usr/include/c++/7/istream:980:5: note: template argument deduction/substitution failed:
/usr/include/c++/7/istream: In substitution of ‘template typename std::enable_if >, std::__is_convertible_to_basic_istream<_Istream>, std::__is_extractable::__istream_type, _Tp&&, void> >::value, typename std::__is_convertible_to_basic_istream<_Tp>::__istream_type>::type std::operator>>(_Istream&&, _Tp&&) [with _Istream = std::basic_istream&; _Tp = double (&)(double) throw ()]’:
Main.cc:8:12: required from here
/usr/include/c++/7/istream:980:5: error: no type named ‘type’ in ‘struct std::enable_if&>’
In file included from /usr/include/c++/7/ccomplex:39:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from Main.cc:1:
/usr/include/c++/7/complex:493:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::complex<_Tp>&)
operator>>(basic_istream<_CharT, _Traits>& __is, complex<_Tp>& __x)
^~~~~~~~
/usr/include/c++/7/complex:493:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: mismatched types ‘std::complex<_Tp>’ and ‘double(double) throw ()’
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:66:0,
from Main.cc:1:
/usr/include/c++/7/bitset:1462:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::bitset<_Nb>&)
operator>>(std::basic_istream<_CharT, _Traits>& __is, bitset<_Nb>& __x)
^~~~~~~~
/usr/include/c++/7/bitset:1462:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: mismatched types ‘std::bitset<_Nb>’ and ‘double(double) throw ()’
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:72:0,
from Main.cc:1:
/usr/include/c++/7/iomanip:71:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Resetiosflags)
operator>>(basic_istream<_CharT, _Traits>& __is, _Resetiosflags __f)
^~~~~~~~
/usr/include/c++/7/iomanip:71:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: cannot convert ‘y1’ (type ‘double(double) throw ()’) to type ‘std::_Resetiosflags’
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:72:0,
from Main.cc:1:
/usr/include/c++/7/iomanip:101:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setiosflags)
operator>>(basic_istream<_CharT, _Traits>& __is, _Setiosflags __f)
^~~~~~~~
/usr/include/c++/7/iomanip:101:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: cannot convert ‘y1’ (type ‘double(double) throw ()’) to type ‘std::_Setiosflags’
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:72:0,
from Main.cc:1:
/usr/include/c++/7/iomanip:132:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setbase)
operator>>(basic_istream<_CharT, _Traits>& __is, _Setbase __f)
^~~~~~~~
/usr/include/c++/7/iomanip:132:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: cannot convert ‘y1’ (type ‘double(double) throw ()’) to type ‘std::_Setbase’
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:72:0,
from Main.cc:1:
/usr/include/c++/7/iomanip:170:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setfill<_CharT>)
operator>>(basic_istream<_CharT, _Traits>& __is, _Setfill<_CharT> __f)
^~~~~~~~
/usr/include/c++/7/iomanip:170:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: mismatched types ‘std::_Setfill<_CharT>’ and ‘double (*)(double) throw ()’
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:72:0,
from Main.cc:1:
/usr/include/c++/7/iomanip:200:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setprecision)
operator>>(basic_istream<_CharT, _Traits>& __is, _Setprecision __f)
^~~~~~~~
/usr/include/c++/7/iomanip:200:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: cannot convert ‘y1’ (type ‘double(double) throw ()’) to type ‘std::_Setprecision’
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:72:0,
from Main.cc:1:
/usr/include/c++/7/iomanip:230:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setw)
operator>>(basic_istream<_CharT, _Traits>& __is, _Setw __f)
^~~~~~~~
/usr/include/c++/7/iomanip:230:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: cannot convert ‘y1’ (type ‘double(double) throw ()’) to type ‘std::_Setw’
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:72:0,
from Main.cc:1:
/usr/include/c++/7/iomanip:264:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Get_money<_MoneyT>)
operator>>(basic_istream<_CharT, _Traits>& __is, _Get_money<_MoneyT> __f)
^~~~~~~~
/usr/include/c++/7/iomanip:264:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: mismatched types ‘std::_Get_money<_MoneyT>’ and ‘double (*)(double) throw ()’
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:72:0,
from Main.cc:1:
/usr/include/c++/7/iomanip:418:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Get_time<_CharT>)
operator>>(basic_istream<_CharT, _Traits>& __is, _Get_time<_CharT> __f)
^~~~~~~~
/usr/include/c++/7/iomanip:418:5: note: template argument deduction/substitution failed:
Main.cc:8:12: note: mismatched types ‘std::_Get_time<_CharT>’ and ‘double (*)(double) throw ()’
cin>>x1>>y1>>x2>>y2;
^~
In file included from /usr/include/c++/7/valarray:592:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:95,