Compilare: main.cpp: In function 'int lca(int, int)': main.cpp:42:12: warning: unused variable 'j' [-Wunused-variable] 42 | int i,j; | ^ main.cpp: In function 'int main()': main.cpp:58:15: warning: unused variable 'j' [-Wunused-variable] 58 | int n,m,i,j,l,e,x,y,maxim=-1,st,dr; | ^ main.cpp:102:32: warning: 'dr' may be used uninitialized in this function [-Wmaybe-uninitialized] 102 | fout<<maxim<<" "<<st<<" "<<dr; | ^~ main.cpp:102:27: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized] 102 | fout<<maxim<<" "<<st<<" "<<dr; | ^~~