Compilare: user.cpp: In function ‘void read(int&)’: user.cpp:25:49: 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, Buffer_Size, stdin); ^ user.cpp:33:49: 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, Buffer_Size, stdin); ^ user.cpp:40:49: 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, Buffer_Size, stdin); ^ user.cpp: In function ‘void Read()’: user.cpp:51:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("secventa.in", "r", stdin); ^ user.cpp:52:41: 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, Buffer_Size, stdin); ^ user.cpp: In function ‘void Solve()’: user.cpp:76:12: warning: ‘idx’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<idx - b + 1<<" "<<idx<<" "<<sol<<"\n"; ^