Compilare: main.cpp:8:68: warning: built-in function 'log' declared as non-function [-Wbuiltin-declaration-mismatch] 8 | int v[Nmax][Nmax], col[Nmax][Nmax][10], rmq[Nmax][10], n, m, h, w, log[Nmax]; | ^~~ main.cpp: In function 'int main()': main.cpp:24:16: warning: iteration 403 invokes undefined behavior [-Waggressive-loop-optimizations] 24 | log[i] = log[i / 2] + 1; | ~~~~~~~^~~~~~~~~~~~~~~~ main.cpp:23:24: note: within this loop 23 | for ( int i = 2; i <= Nmax; ++i ) | ~~^~~~~~~