Eroare de compilare: user.cpp: In function ‘void dfs(int, int)’: user.cpp:18:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<arb[nod].size(); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:62:85: error: ‘lca’ was not declared in this scope int v1=sum[1], vi=sum[i], vj=sum[j], vk=sum[k], tata=lca(i, lca(j, k)); ^ user.cpp:62:86: error: ‘lca’ was not declared in this scope int v1=sum[1], vi=sum[i], vj=sum[j], vk=sum[k], tata=lca(i, lca(j, k)); ^ user.cpp:62:86: error: redeclaration of ‘<typeprefixerror>lca’ user.cpp:62:85: note: previous declaration ‘<typeprefixerror>lca’ int v1=sum[1], vi=sum[i], vj=sum[j], vk=sum[k], tata=lca(i, lca(j, k)); ^ user.cpp:62:21: warning: unused variable ‘v1’ [-Wunused-variable] int v1=sum[1], vi=sum[i], vj=sum[j], vk=sum[k], tata=lca(i, lca(j, k)); ^ user.cpp:62:32: warning: unused variable ‘vi’ [-Wunused-variable] int v1=sum[1], vi=sum[i], vj=sum[j], vk=sum[k], tata=lca(i, lca(j, k)); ^ user.cpp:62:43: warning: unused variable ‘vj’ [-Wunused-variable] int v1=sum[1], vi=sum[i], vj=sum[j], vk=sum[k], tata=lca(i, lca(j, k)); ^ user.cpp:62:54: warning: unused variable ‘vk’ [-Wunused-variable] int v1=sum[1], vi=sum[i], vj=sum[j], vk=sum[k], tata=lca(i, lca(j, k)); ^ user.cpp:62:65: warning: unused variable ‘tata’ [-Wunused-variable] int v1=sum[1], vi=sum[i], vj=sum[j], vk=sum[k], tata=lca(i, lca(j, k)); ^