Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:55: error: name lookup of ‘k’ changed for ISO ‘for’ scoping user.cpp:55: note: (if you use ‘-fpermissive’ G++ will accept your code) user.cpp:16: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result