Compilare: main.cpp: In function 'void citire()': main.cpp:58:6: warning: unused variable 'val' [-Wunused-variable] arb val; ^~~ main.cpp: In function 'void dfs(int, int)': main.cpp:99:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<g[k].size();i++) ~^~~~~~~~~~~~ main.cpp: In function 'void lca()': main.cpp:117:7: warning: variable 'nivinitx' set but not used [-Wunused-but-set-variable] int nivinitx,nivinity; ^~~~~~~~ main.cpp:117:16: warning: variable 'nivinity' set but not used [-Wunused-but-set-variable] int nivinitx,nivinity; ^~~~~~~~