Compilare: main.cpp: In function 'void rmq()': main.cpp:28:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 1, p = 1; (p << 1) <= nr; j++, p <<= 1) ~~~~~~~~~^~~~~ main.cpp:29:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 1; i <= nr - (p << 1) + 1; i++) ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:39:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i == p) l++, p <<= 1; ~~^~~~