Compilare: main.cpp:8:24: warning: built-in function 'log2' declared as non-function [-Wbuiltin-declaration-mismatch] 8 | int n,v[N],l[N],scl[N],log2[N],lmax,r[N],r2[N],aux; | ^~~~ main.cpp: In function 'int main()': main.cpp:50:16: warning: iteration 9999 invokes undefined behavior [-Waggressive-loop-optimizations] 50 | log2[i]=1+log2[i/2]; | ~~~~~~~^~~~~~~~~~~~ main.cpp:49:18: note: within this loop 49 | for(int i=2;i<=N;i++) | ^