Compilare: main.cpp: In function 'int qry(int, int)': main.cpp:21:9: warning: statement has no effect [-Wunused-value] 21 | for(pz;pz>0;pz-=lsb(pz)) | ^~ main.cpp: In function 'int main()': main.cpp:95:9: warning: unused variable 't' [-Wunused-variable] 95 | int t,c,n,i,j; | ^ main.cpp:95:11: warning: unused variable 'c' [-Wunused-variable] 95 | int t,c,n,i,j; | ^