spider.cpp: In function `void cauta(int, int, int)': spider.cpp:103: warning: unused variable `int i' spider.cpp:103: warning: unused variable `int dir2' spider.cpp:103: warning: unused variable `int ans2' spider.cpp:103: warning: unused variable `int di2' spider.cpp:103: warning: unused variable `int dj2' spider.cpp:103: warning: unused variable `int x' spider.cpp:103: warning: `int dir' might be used uninitialized in this function