Compilare: main.cpp: In function 'int main()': main.cpp:43:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v3.size(); i++) ~^~~~~~~~~~ main.cpp:50:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1; (1<<j)<=v3.size(); j++) ~~~~~~^~~~~~~~~~~ main.cpp:52:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i+(1<<(j-1))<v3.size(); i++) ~~~~~~~~~~~~^~~~~~~~~~ main.cpp:67:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v2.size(); i++) ~^~~~~~~~~~