Compilare: main.cpp: In function 'void afisare(int)': main.cpp:12:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<a[i].size();j++) ~^~~~~~~~~~~~ main.cpp: In function 'void adaug_vecini(int)': main.cpp:28:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<a[x].size();i++) ~^~~~~~~~~~~~ main.cpp: In function 'void dfs(int, int*, int, int&)': main.cpp:34:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<a[i].size();j++) ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:57:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<vizit.size();i++) ~^~~~~~~~~~~~~ main.cpp:59:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j<a[vizit[i]].size()) ~^~~~~~~~~~~~~~~~~~~