Compilare: user.cpp: In function ‘int main()’: user.cpp:125:33: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if(sum ^ partialXor[pos[0]] > Max) { ^ user.cpp:114:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("xormax.out", "w", stdout); ^ user.cpp: In constructor ‘ReadStream::ReadStream(const char*)’: user.cpp:28:30: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buf, maxSize, 1, f); ^ user.cpp: In member function ‘void ReadStream::move()’: user.cpp:16:32: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buf, maxSize, 1, f); ^