Compilare: main.cpp: In function 'void parcurge(int)': main.cpp:23:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(vecin[v].size()<k) ~~~~~~~~~~~~~~~^~ main.cpp: In function 'int main()': main.cpp:95:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(vecin[i].size()<k&&!viz[i]) ~~~~~~~~~~~~~~~^~