Compilare: main.cpp: In function 'int main()': main.cpp:120:36: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] 120 | if(val[i] & (1 << bit) == 1) | ~~~~~~~~~~~^~~~ main.cpp: In member function 'int DSU::cauta(int)': main.cpp:57:19: warning: control reaches end of non-void function [-Wreturn-type] 57 | parent[u] = cauta(parent[u]);