Compilare: user.cpp: In function ‘int main()’: user.cpp:93:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("padurari.in", "r", stdin); ^ user.cpp:94:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("padurari.out", "w", stdout); ^ user.cpp: In member function ‘void Reader::NextPosition()’: user.cpp:63:43: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer, 1, size, stream); ^ user.cpp: In function ‘int main()’: user.cpp:106:18: warning: ‘curr’ may be used uninitialized in this function [-Wmaybe-uninitialized] A[i-1] = curr - last; ^