Compilare: main.cpp: In function 'void update(int, int)': main.cpp:14:11: warning: statement has no effect [-Wunused-value] 14 | for ( pos ; pos <= n ; pos += ( pos & -pos ) ) | ^~~ main.cpp: In function 'int compute(int)': main.cpp:21:11: warning: statement has no effect [-Wunused-value] 21 | for ( pos ; pos > 0 ; pos -= ( pos & -pos ) ) | ^~~