View Compilation Error

0_0_32443672_17917.cpp:7:1: error: 'll' does not name a type
 ll rd()
 ^
0_0_32443672_17917.cpp: In function 'int main()':
0_0_32443672_17917.cpp:38:13: error: 'rd' was not declared in this scope
  dep(_,1,rd())  solve();
             ^
0_0_32443672_17917.cpp:3:30: note: in definition of macro 'dep'
 #define dep(i,a,b) for(int i=b;i>=a;i--)
                              ^