Compilare: user.cpp: In static member function ‘static void SegTree::UpdateUtil(int, int, int, int, int)’: user.cpp:23:20: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] int leftc = node << 2 + 1; ^ user.cpp: In static member function ‘static int SegTree::QueryUtil(int, int, int, int, int)’: user.cpp:49:21: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] int leftc = node << 2 + 1; ^ user.cpp:54:22: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] int rightc = node << 2 + 1 + 1; ^ user.cpp: In static member function ‘static void SegTree::BuildTree(int, int, int)’: user.cpp:68:20: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] int leftc = node << 2 + 1; ^