Eroare de compilare: main.cpp: In function 'int imperecheaza(int)': main.cpp:20:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<vecini[k].size(); i++) ~^~~~~~~~~~~~~~~~~ main.cpp:30:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<vecini[k].size(); i++) ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:50:9: error: expected initializer before 'while' while( f>>x ) ^~~~~ main.cpp:48:13: warning: unused variable 'x' [-Wunused-variable] int x; ^ Non zero exit status: 1