Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:15:14: warning: suggest parentheses around assignment used as truth value [-Wparentheses] viz[nod] = dp[nod] = 1; ^ user.cpp: In function ‘void buildtree(int, int, int, int, int)’: user.cpp:44:18: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] int mij = st + dr >> 1; ^ user.cpp: In function ‘void update(int, int, int, int, int, int)’: user.cpp:55:18: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] int mij = st + dr >> 1; ^ user.cpp: In function ‘int query(int, int, int, int, int, int)’: user.cpp:67:18: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] int mij = st + dr >> 1; ^