Main.cc: In function ‘int main()’:
Main.cc:5:9: error: no match for ‘operator>>’ (operand types are ‘std::basic_istream::__istream_type {aka std::basic_istream}’ and ‘int’)
cin>>i1>>12;
~~~~~~~^~~~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: error: invalid conversion from ‘int’ to ‘std::basic_istream::__istream_type& (*)(std::basic_istream::__istream_type&) {aka std::basic_istream& (*)(std::basic_istream&)}’ [-fpermissive]
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: error: invalid conversion from ‘int’ to ‘std::basic_istream::__ios_type& (*)(std::basic_istream::__ios_type&) {aka std::basic_ios& (*)(std::basic_ios&)}’ [-fpermissive]
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: error: invalid conversion from ‘int’ to ‘std::ios_base& (*)(std::ios_base&)’ [-fpermissive]
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: error: cannot bind non-const lvalue reference of type ‘bool&’ to an rvalue of type ‘bool’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: error: cannot bind non-const lvalue reference of type ‘short int&’ to an rvalue of type ‘short int’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: error: cannot bind non-const lvalue reference of type ‘short unsigned int&’ to an rvalue of type ‘short unsigned int’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: error: cannot bind non-const lvalue reference of type ‘int&’ to an rvalue of type ‘int’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: error: cannot bind non-const lvalue reference of type ‘unsigned int&’ to an rvalue of type ‘unsigned int’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: error: cannot bind non-const lvalue reference of type ‘long int&’ to an rvalue of type ‘long int’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: error: cannot bind non-const lvalue reference of type ‘long unsigned int&’ to an rvalue of type ‘long unsigned int’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: error: cannot bind non-const lvalue reference of type ‘long long int&’ to an rvalue of type ‘long long int’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: error: cannot bind non-const lvalue reference of type ‘long long unsigned int&’ to an rvalue of type ‘long long unsigned int’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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: conversion of argument 1 would be ill-formed:
Main.cc:5:11: error: cannot bind non-const lvalue reference of type ‘float&’ to an rvalue of type ‘float’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
from Main.cc:1:
/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: conversion of argument 1 would be ill-formed:
Main.cc:5:11: error: cannot bind non-const lvalue reference of type ‘double&’ to an rvalue of type ‘double’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
from Main.cc:1:
/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: conversion of argument 1 would be ill-formed:
Main.cc:5:11: error: cannot bind non-const lvalue reference of type ‘long double&’ to an rvalue of type ‘long double’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: error: invalid conversion from ‘int’ to ‘void*’ [-fpermissive]
cin>>i1>>12;
^~
Main.cc:5:11: error: cannot bind rvalue ‘12’ to ‘void*&’
In file included from /usr/include/c++/7/iostream:40:0,
from Main.cc:1:
/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: conversion of argument 1 would be ill-formed:
Main.cc:5:11: error: invalid conversion from ‘int’ to ‘std::basic_istream::__streambuf_type* {aka std::basic_streambuf*}’ [-fpermissive]
cin>>i1>>12;
^~
Main.cc:5:9: note: candidate: operator>>(int, int)
cin>>i1>>12;
~~~~~~~^~~~
Main.cc:5:9: note: no known conversion for argument 1 from ‘std::basic_istream::__istream_type {aka std::basic_istream}’ to ‘int’
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/ostream:38,
from /usr/include/c++/7/iostream:39,
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:5:11: note: mismatched types ‘std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’ and ‘int’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/istream:991:0,
from /usr/include/c++/7/iostream:40,
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:5:11: note: mismatched types ‘_CharT2*’ and ‘int’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/istream:991:0,
from /usr/include/c++/7/iostream:40,
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:5:11: note: deduced conflicting types for parameter ‘_CharT’ (‘char’ and ‘int’)
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: note: cannot convert ‘12’ (type ‘int’) to type ‘unsigned char&’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: note: cannot convert ‘12’ (type ‘int’) to type ‘signed char&’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: note: cannot convert ‘12’ (type ‘int’) to type ‘unsigned char*’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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:5:11: note: cannot convert ‘12’ (type ‘int’) to type ‘signed char*’
cin>>i1>>12;
^~
In file included from /usr/include/c++/7/iostream:40:0,
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 = int]’:
Main.cc:5:11: required from here
/usr/include/c++/7/istream:980:5: error: no type named ‘type’ in ‘struct std::enable_if&>’
Main.cc:23:12: error: ‘i’ was not declared in this scope
if(n+m==i+1||n==m){
^