Compilare: user.cpp: In function ‘void unite(int, int)’: user.cpp:21:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(ta!=tb) ^ user.cpp: In function ‘int find(int)’: user.cpp:16:12: warning: ‘i’ may be used uninitialized in this function [-Wmaybe-uninitialized] return i; ^ user.cpp: In function ‘void unite(int, int)’: user.cpp:22:25: warning: ‘i’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(rang[ta]<rang[tb]) ^ user.cpp:22:16: warning: ‘i’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(rang[ta]<rang[tb]) ^ user.cpp: In function ‘int main()’: user.cpp:44:13: warning: ‘i’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(find(a)==find(b)) ^ user.cpp:44:13: warning: ‘i’ may be used uninitialized in this function [-Wmaybe-uninitialized]