Compilare: main.cpp: In member function 'void SegTree::_update(long long int, long long int)': main.cpp:86:28: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 86 | for(int p = poz; p < aib.size(); p += lsb(p)) { | ~~^~~~~~~~~~~~ main.cpp: In function 'long long int compress(long long int, long long int)': main.cpp:136:9: warning: unused variable 'cnt_nodes_over_c' [-Wunused-variable] 136 | int cnt_nodes_over_c = n - stsz[c]; | ^~~~~~~~~~~~~~~~ main.cpp:137:9: warning: unused variable 'cnt_nodes_subc_not_path' [-Wunused-variable] 137 | int cnt_nodes_subc_not_path = stsz[c] - path_length_nodes; | ^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'long long int lca(long long int, long long int)': main.cpp:32:23: warning: array subscript -1 is below array bounds of 'long long int [17][100007]' [-Warray-bounds] 32 | if(binliftmem[pow2][node] != -1) return binliftmem[pow2][node]; | ~~~~~~~~~~~~~~~^ main.cpp:29:5: note: while referencing 'binliftmem' 29 | int binliftmem[LGMAX][NMAX]; | ^~~~~~~~~~ main.cpp:32:23: warning: array subscript -1 is below array bounds of 'long long int [17][100007]' [-Warray-bounds] 32 | if(binliftmem[pow2][node] != -1) return binliftmem[pow2][node]; | ~~~~~~~~~~~~~~~^ main.cpp:29:5: note: while referencing 'binliftmem' 29 | int binliftmem[LGMAX][NMAX]; | ^~~~~~~~~~