Eroare de compilare: user.cpp: In function ‘void lee()’: user.cpp:42: error: ‘viz’ was not declared in this scope user.cpp:63: error: ‘viz’ was not declared in this scope user.cpp:20: warning: unused variable ‘i’ user.cpp: In function ‘int main()’: user.cpp:71: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:72: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:73: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:77: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result user.cpp:86: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result