Eroare de compilare: user.cpp:7: error: expected constructor, destructor, or type conversion before ‘<’ token user.cpp: In function ‘void read()’: user.cpp:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void solve()’: user.cpp:37: error: ‘que’ was not declared in this scope user.cpp:52: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp: In function ‘void write()’: user.cpp:66: error: ‘exit’ was not declared in this scope