Compilare: main.cpp: In function 'int main()': main.cpp:17:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;i++) ~^~~ main.cpp:19:22: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] a[n+1]=(ULL)1<<31-1; ~~^~ main.cpp:22:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;i++) ~^~~ main.cpp:24:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; (1<<j)<=a[i-1]; j++) ~~~~~~^~~~~~~~ main.cpp:32:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(k<=K) ~^~~ main.cpp:35:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; (1<<j)<=a[dr]; j++) ~~~~~~^~~~~~~