Compilare: user.cpp: In function ‘bool parsare()’: user.cpp:23:17: warning: NULL used in arithmetic [-Wpointer-arith] if((*buff)==NULL) ^ user.cpp:26:20: warning: NULL used in arithmetic [-Wpointer-arith] while(buff[i]!=NULL){ ^ user.cpp: In function ‘int main()’: user.cpp:66:14: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] *buff=NULL; ^ user.cpp:62:9: warning: variable ‘ci’ set but not used [-Wunused-but-set-variable] int ci=1; ^ user.cpp: In function ‘bool parsare()’: user.cpp:22:29: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff,4096,1,stdin); ^ user.cpp: In function ‘int main()’: user.cpp:59:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pitici4.in","r",stdin); ^ user.cpp:60:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pitici4.out","w",stdout); ^ user.cpp:61:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&n); ^