Compilare: main.cpp: In function 'int main()': main.cpp:58:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<nivel[maxim].size();j++) ~^~~~~~~~~~~~~~~~~~~~ main.cpp:65:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<a[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp:70:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<a[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp:110:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<nivel[maxim].size();j++) ~^~~~~~~~~~~~~~~~~~~~ main.cpp:113:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<query[nod].size();i++) ~^~~~~~~~~~~~~~~~~~ main.cpp:53:16: warning: 'root' may be used uninitialized in this function [-Wmaybe-uninitialized] dfs(root,0); ^