Compilare: main.cpp: In function 'int main()': main.cpp:17:19: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] for(p=0; (1<<p-1)<=n; p++){ ~^~ main.cpp:21:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<a.size(); i++){ ~^~~~~~~~~ main.cpp:42:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<sol.size(); i++){ ~^~~~~~~~~~~