Eroare de compilare in evaluator: user.cpp:2:22: error: algorithm.h: No such file or directory user.cpp:10: error: expected ',' or '...' before '&' token user.cpp:10: error: ISO C++ forbids declaration of 'interval' with no type user.cpp:10: error: 'bool operator<(int)' must have an argument of class or enumerated type user.cpp:10: error: 'bool operator<(int)' must take exactly two arguments user.cpp: In function 'bool operator<(int)': user.cpp:12: error: 'x' was not declared in this scope user.cpp:12: error: 'y' was not declared in this scope user.cpp: In function 'void calcul()': user.cpp:60: error: 'sort' is not a member of 'std' user.cpp:48: warning: unused variable 'p'