Borderou de evaluare (job #74662)

Compilare: user.cpp: In function ‘void Cit(char&)’: user.cpp:22:36: warning: passing NULL to non-pointer argument 2 of ‘void* memset(void*, int, size_t)’ [-Wconversion-null] user.cpp: In function ‘int main()’: user.cpp:33:16: warning: NULL used in arithmetic [-Wpointer-arith] user.cpp:30:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:31:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp: In function ‘void Cit(char&)’: user.cpp:23:41: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]