/in/foo.cc: In function 'int main()':
/in/foo.cc:7:22: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[100005]' [-Wformat=]
  while(scanf("%s",&aa)){
                   ~~~^
/in/foo.cc:9:17: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[100005]' [-Wformat=]
   scanf("%s",&bb);
              ~~~^