Compile Error
/in/foo.cc: In function 'int main()':
/in/foo.cc:6:2: error: 'cin' was not declared in this scope
cin>>n
^~~
/in/foo.cc:5:8: warning: unused variable 'a' [-Wunused-variable]
int n,a;
^
/in/foo.cc: In function 'int main()':
/in/foo.cc:6:2: error: 'cin' was not declared in this scope
cin>>n
^~~
/in/foo.cc:5:8: warning: unused variable 'a' [-Wunused-variable]
int n,a;
^
