Compilare: main.cpp: In function 'int query(int, int)': main.cpp:61:9: warning: statement has no effect [-Wunused-value] 61 | for(lin; lin > 0; lin -= (lin & -lin)) | ^~~ main.cpp: In function 'void update(int, int, int, int)': main.cpp:69:10: warning: statement has no effect [-Wunused-value] 69 | for (lin; lin <= n; lin += (lin & -lin)) | ^~~