Eroare de compilare: user.cpp: In function ‘int compare(const void*, const void*)’: user.cpp:5: error: ‘cord’ was not declared in this scope user.cpp:5: error: expected ‘;’ before ‘x’ user.cpp:6: error: ‘x’ was not declared in this scope user.cpp:6: error: ‘y’ was not declared in this scope user.cpp:6: warning: unused variable ‘a1’ user.cpp:6: warning: unused variable ‘b1’ user.cpp:6: warning: unused variable ‘a2’ user.cpp:6: warning: unused variable ‘b2’ user.cpp:8: warning: no return statement in function returning non-void user.cpp: In function ‘int main()’: user.cpp:15: error: ‘n’ was not declared in this scope user.cpp:18: error: ‘R’ was not declared in this scope user.cpp:19: error: ‘R2’ was not declared in this scope user.cpp:23: error: ‘jd’ was not declared in this scope user.cpp:23: error: ‘sqrt’ was not declared in this scope user.cpp:24: error: ‘jl’ was not declared in this scope user.cpp:28: error: ‘ve’ was not declared in this scope user.cpp:28: error: ‘k’ was not declared in this scope user.cpp:39: error: ‘ve’ was not declared in this scope user.cpp:39: error: ‘k’ was not declared in this scope user.cpp:39: error: ‘qsort’ was not declared in this scope user.cpp:41: error: ‘dx’ was not declared in this scope user.cpp:42: error: ‘dy’ was not declared in this scope user.cpp:43: error: ‘dp’ was not declared in this scope user.cpp:47: error: ‘verif’ was not declared in this scope user.cpp:12: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:13: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result