Compilare: main.cpp: In function 'void update(int*, int)': main.cpp:15:10: warning: statement has no effect [-Wunused-value] 15 | for (i;i+ub(i)<=100000;i+=ub(i)) | ^ main.cpp: In function 'int read(int*, int)': main.cpp:23:10: warning: statement has no effect [-Wunused-value] 23 | for (i;i>0;i-=ub(i)) | ^