Eroare de compilare: user.cpp: In function ‘void read_input()’: user.cpp:21: error: ‘in’ was not declared in this scope user.cpp: In function ‘int Eulerian()’: user.cpp:46: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void euler(long int)’: user.cpp:81: warning: comparison between signed and unsigned integer expressions user.cpp:81: error: ‘out’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:90: warning: unused variable ‘i’