Compilare: main.cpp: In function 'void dfs(int, int, int)': main.cpp:37:9: warning: unused variable 'i' [-Wunused-variable] int i; ^ main.cpp: In function 'void hld(int, int*, int*, int*)': main.cpp:73:20: warning: unused variable 'j' [-Wunused-variable] int special=-1,j; ^ main.cpp: In function 'int query_1(int, int, int, int, int)': main.cpp:247:23: warning: unused variable 'c' [-Wunused-variable] int mij=(st+dr)/2,c,d; ^ main.cpp:247:25: warning: unused variable 'd' [-Wunused-variable] int mij=(st+dr)/2,c,d; ^