Compilare: main.cpp: In function 'int lca(int, int)': main.cpp:45:12: warning: unused variable 'j' [-Wunused-variable] 45 | int i,j; | ^ main.cpp: In function 'int main()': main.cpp:61:15: warning: unused variable 'j' [-Wunused-variable] 61 | int n,m,i,j,l,e,x,y,maxim=-2e9,st=2e9,dr=2e9,radacina; | ^ main.cpp:90:8: warning: 'radacina' may be used uninitialized in this function [-Wmaybe-uninitialized] 90 | dfs(radacina); | ~~~^~~~~~~~~~