Compilare: main.cpp: In function 'void dfs(int)': main.cpp:49:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<G[x].size(); i++) ~^~~~~~~~~~~~ main.cpp: In function 'void dfst(int)': main.cpp:59:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<GT[x].size(); i++) ~^~~~~~~~~~~~~ main.cpp: In function 'void afisare()': main.cpp:67:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] {for (j=1; j<=n; j++) ^~~ main.cpp:69:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' fout<<'\n'; ^~~~