/in/foo.cc: In function 'int main()':
/in/foo.cc:12:23: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[1005]' [-Wformat=]
   scanf("%s%s",&s1,&s2);
                       ^
/in/foo.cc:12:23: warning: format '%s' expects argument of type 'char*', but argument 3 has type 'char (*)[1005]' [-Wformat=]
/in/foo.cc:14:7: warning: unused variable 'tot' [-Wunused-variable]
   int tot=0;
       ^~~