Compilare: user.cpp: In function ‘int bb(int, int)’: user.cpp:25:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(s=1;s<mini.size();s<<=1); ^ user.cpp:28:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (mini.size() > e + s && mini[e + s] >= x && i - 2 >= mini[e + s]) ^ user.cpp:30:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (mini.size() > h + s && mini[h + s] <= y && i - 2 >= mini[h + s]) ^ user.cpp: In function ‘int bsearch(int, int)’: user.cpp:54:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0;j < mini.size(); ++j) ^ user.cpp:64:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^