Compilare: main.cpp:73:87: warning: built-in function 'log2' declared as non-function [-Wbuiltin-declaration-mismatch] 73 | int n, root, e[2 * maxN], ind_euler, poz_euler[maxN], rmq[20][2 * maxN], depth[maxN], log2[2 * maxN]; | ^~~~ main.cpp: In function 'int main()': main.cpp:179:17: warning: iteration 200008 invokes undefined behavior [-Waggressive-loop-optimizations] 179 | log2[i] = log2[i / 2] + 1; | ~~~~~~~~^~~~~~~~~~~~~~~~~ main.cpp:178:22: note: within this loop 178 | for(int i = 2; i <= 2 * maxN; i++) | ~~^~~~~~~~~~~