/in/foo.c: In function 'find':
/in/foo.c:42:34: warning: 'b[2]' may be used uninitialized in this function [-Wmaybe-uninitialized]
    if(s[j]==b[0] && s[j+1]==b[1] && s[j+2]==b[2])
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
/in/foo.c:42:18: warning: 'b[1]' may be used uninitialized in this function [-Wmaybe-uninitialized]
    if(s[j]==b[0] && s[j+1]==b[1] && s[j+2]==b[2])
       ~~~~~~~~~~~^~~~~~~~~~~~~~~