View Compilation Error

0_0_21493736_13333.cpp:6:1: error: 'll' does not name a type
 ll n,l,r,f[N];
 ^
0_0_21493736_13333.cpp:9:10: error: variable or field 'div' declared void
 void div(ll p) {
          ^
0_0_21493736_13333.cpp:9:10: error: 'll' was not declared in this scope