Compilare: main.cpp: In function 'void dfs(int, int, int)': main.cpp:85:9: warning: unused variable 'i' [-Wunused-variable] int i; ^ main.cpp: In function 'void hld(int, int*, int*, int*)': main.cpp:137:20: warning: unused variable 'j' [-Wunused-variable] int special=-1,j; ^ main.cpp: In function 'int LCA(int, int)': main.cpp:281:8: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(nodes[u].nivel<nodes[v].nivel) ^~ main.cpp:285:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' u=nodes[u].tata; ^ main.cpp: In function 'int query_1(int, int, int, int, int)': main.cpp:316:23: warning: unused variable 'c' [-Wunused-variable] int mij=(st+dr)/2,c,d; ^ main.cpp:316:25: warning: unused variable 'd' [-Wunused-variable] int mij=(st+dr)/2,c,d; ^