Main.cc: In function ‘int main()’:
Main.cc:28:9: error: ‘swap’ was not declared in this scope
if(k>m)swap(k,m);
^~~~
Main.cc:28:9: note: suggested alternatives:
In file included from /usr/include/c++/7/complex:45:0,
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/sstream:796:5: note: ‘std::__cxx11::swap’
swap(basic_stringbuf<_CharT, _Traits, _Allocator>& __x,
^~~~
In file included from /usr/include/c++/7/regex:62:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
from Main.cc:1:
/usr/include/c++/7/bits/regex.h:2000:5: note: ‘std::__cxx11::swap’
swap(match_results<_Bi_iter, _Alloc>& __lhs,
^~~~
In file included from /usr/include/c++/7/exception:142:0,
from /usr/include/c++/7/ios:39,
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/exception_ptr.h:166:5: note: ‘std::__exception_ptr::swap’
swap(exception_ptr& __lhs, exception_ptr& __rhs)
^~~~
In file included from /usr/include/c++/7/bits/nested_exception.h:40:0,
from /usr/include/c++/7/exception:143,
from /usr/include/c++/7/ios:39,
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/move.h:187:5: note: ‘std::swap’
swap(_Tp& __a, _Tp& __b)
^~~~
Main.cc:27:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d,%d",&k,&m);
~~~~~^~~~~~~~~~~~~~~