Compilare: main.cpp: In function 'int main()': main.cpp:21:61: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses] 21 | last_bit = std :: __lg((stramos ^ (stramos - 1) + 1)); | ~~~~~~~~~~~~~~^~~ main.cpp:22:32: warning: array subscript -1 is below array bounds of 'int [19][250005]' [-Warray-bounds] 22 | ans = tree[last_bit][ans]; | ~~~~~~~~~~~~~^ main.cpp:3:5: note: while referencing 'tree' 3 | int tree[19][250005]; | ^~~~