Compilare: user.cpp: In function ‘int get_sz(int, int)’: user.cpp:142:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void construct()’: user.cpp:178:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < rmq[0][c].size(); i++) ^ user.cpp:189:62: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j + (1 << i) - 1 < rmq[0][c].size(); j++) ^ user.cpp: In function ‘int ask(int)’: user.cpp:223:57: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = ind_index[nod]; i < sum[chain].size(); i++) ^