/in/foo.cc: In function 'int main()':
/in/foo.cc:36:16: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[100010]' [-Wformat=]
   scanf("%s",&z);
                ^
/in/foo.cc:37:16: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[100010]' [-Wformat=]
   scanf("%s",&y);
                ^
/in/foo.cc: In function 'int kmp(int, int)':
/in/foo.cc:28:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^