Compilare: main.cpp: In function 'int main()': main.cpp:24:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<dq.size();j++){ ~^~~~~~~~~~ main.cpp:33:24: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized] move2=dq.size()-pos-1; ~~~~~~~~~^~~~