Accepted
/in/foo.cc: In function 'int main()': /in/foo.cc:42:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if((1ll<<i) >= n) ~~~~~~~~~^~~~
/in/foo.cc: In function 'int main()': /in/foo.cc:42:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if((1ll<<i) >= n) ~~~~~~~~~^~~~