Borderou de evaluare (job #74669)

Compilare: user.cpp: In function ‘void Cit(char&)’: user.cpp:22:44: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] user.cpp: In function ‘int main()’: user.cpp:33:22: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] user.cpp:35:16: 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:32:29: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, 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]