Main.cc: In function 'int main()':
Main.cc:7:16: error: too few arguments to function 'int strcmp(const char*, const char*)'
if(strcmp(a)==0){
^
In file included from /usr/include/c++/5/cstring:42:0,
from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:48,
from Main.cc:1:
/usr/include/string.h:140:12: note: declared here
extern int strcmp (const char *__s1, const char *__s2)
^