Compilare: main.cpp: In member function 'void SegmentTree::Go(int, int, int)': main.cpp:116:13: warning: unused variable 'Mid' [-Wunused-variable] int Mid = ((a + b) >> 1); ^~~ main.cpp: In function 'void Read()': main.cpp:179:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("permutare5.in", "r", stdin); ^ main.cpp:180:43: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("permutare5.out", "w", stdout); ^