Compilare: main.cpp: In function 'int32_t main()': main.cpp:71:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(f>=v1.size()){cout<<b[j]<<" "; j++; continue;} ~^~~~~~~~~~~ main.cpp:72:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(s>=v2.size()){cout<<a[i]<<" "; i++; continue;} ~^~~~~~~~~~~