Compilare: main.cpp: In function 'void Euler(int)': main.cpp:15:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < L[k].size(); i++) ~~^~~~~~~~~~~~~ main.cpp: In function 'void rmq()': main.cpp:28:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < niv.size(); i++) ~~^~~~~~~~~~~~ main.cpp:30:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (k = 0; (1 << (k + 1)) <= niv.size(); k++); ~~~~~~~~~~~~~~~^~~~~~~~~~~~~ main.cpp:32:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < niv.size()-(1<<j)+1; i++) ~~^~~~~~~~~~~~~~~~~~~~~