Eroare de compilare: user.cpp:2:20: error: vector.h: No such file or directory user.cpp:6: error: expected constructor, destructor, or type conversion before ‘<’ token user.cpp: In function ‘void f1(long int)’: user.cpp:13: error: ‘hash’ was not declared in this scope user.cpp:15: error: ‘hash’ was not declared in this scope user.cpp: In function ‘void f2(long int)’: user.cpp:21: error: ‘hash’ was not declared in this scope user.cpp: In function ‘int f3(long int)’: user.cpp:32: error: ‘hash’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:46: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result