Eroare de compilare: user.cpp: In function ‘float dist(float, float, float, float)’: user.cpp:49: error: ‘sqrt’ was not declared in this scope user.cpp: In function ‘void rezolva()’: user.cpp:62: warning: comparison between signed and unsigned integer expressions user.cpp:64: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:81: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result