Compilare: main.cpp: In member function 'void SegTree::_update(int, int)': main.cpp:83:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | for(int p = poz; p < aib.size(); p += lsb(p)) { | ~~^~~~~~~~~~~~ main.cpp: In function 'int lca(int, int)': main.cpp:29:23: warning: array subscript -1 is below array bounds of 'int [17][100007]' [-Warray-bounds] 29 | if(binliftmem[pow2][node] != -1) return binliftmem[pow2][node]; | ~~~~~~~~~~~~~~~^ main.cpp:26:5: note: while referencing 'binliftmem' 26 | int binliftmem[LGMAX][NMAX]; | ^~~~~~~~~~ main.cpp:29:23: warning: array subscript -1 is below array bounds of 'int [17][100007]' [-Warray-bounds] 29 | if(binliftmem[pow2][node] != -1) return binliftmem[pow2][node]; | ~~~~~~~~~~~~~~~^ main.cpp:26:5: note: while referencing 'binliftmem' 26 | int binliftmem[LGMAX][NMAX]; | ^~~~~~~~~~