Eroare de compilare: main.cpp: In function 'double dist(const point&, const point&)': main.cpp:37:34: error: 'sqrt' was not declared in this scope return double(sqrt(dist_sq(a,b))); ^ main.cpp: In function 'double closestDivide(point*, int)': main.cpp:118:27: error: call of overloaded 'abs(double)' is ambiguous if (abs(vp[i].x - midp.x) < d) ^ In file included from /usr/include/c++/6/cstdlib:75:0, from /usr/include/c++/6/bits/stl_algo.h:59, from /usr/include/c++/6/algorithm:62, from main.cpp:1: /usr/include/stdlib.h:774:12: note: candidate: int abs(int) extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur; ^~~ In file included from /usr/include/c++/6/bits/stl_algo.h:59:0, from /usr/include/c++/6/algorithm:62, from main.cpp:1: /usr/include/c++/6/cstdlib:180:3: note: candidate: long long int std::abs(long long int) abs(long long __x) { return __builtin_llabs (__x); } ^~~ /usr/include/c++/6/cstdlib:172:3: note: candidate: long int std::abs(long int) abs(long __i) { return __builtin_labs(__i); } ^~~ Non zero exit status: 1