Compilare: main.cpp: In function 'int main()': main.cpp:80:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(P.size()>k) ~~~~~~~~^~ main.cpp:88:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(P.size() == k)///vom incerca sa facem un grup de EXACT k elemente ~~~~~~~~~^~~~