View Compilation Error

0_0_30095714_15358.cpp:6:1: error: 'll' does not name a type
 ll n,k;
 ^
0_0_30095714_15358.cpp: In function 'int main()':
0_0_30095714_15358.cpp:13:27: error: 'n' was not declared in this scope
         scanf("%lld%lld",&n,&k);
                           ^
0_0_30095714_15358.cpp:13:30: error: 'k' was not declared in this scope
         scanf("%lld%lld",&n,&k);
                              ^
0_0_30095714_15358.cpp:40:27: error: 'p2' was not declared in this scope
                         a[p2].push_back(i);
                           ^
0_0_30095714_15358.cpp:45:24: error: 'r' was not declared in this scope
                 int m=(r-l+1)/(k*2);
                        ^