Eroare de compilare: user.cpp: In function ‘double dist(int, int)’: user.cpp:13: error: ‘sqrtf’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:37: error: ‘sort’ was not declared in this scope user.cpp:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result