Compilare: main.cpp: In member function 'int LowestCommonAncestor::query_lca_sol4(int, int, int*, int (*)[2048], int*, int*)': main.cpp:262:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if ( level [ rmq_euler [ i ][ st ] ] < level [ rmq_euler [ i ][ dr - ( 1 << i ) + 1 ] ] ) ^~ main.cpp:265:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' return rmq_euler [ i ][ dr - ( 1 << i ) + 1 ] ; ^~~~~~ main.cpp: In function 'int main()': main.cpp:275:28: warning: unused variable 'lca' [-Wunused-variable] int n , q , i ,x , y , lca , father , cnt = 0 ; ^~~