View Compilation Error

0_0_33669295_24278.cpp: In function 'LL ksm(LL, LL)':
0_0_33669295_24278.cpp:26:20: error: invalid conversion from 'LL* {aka long long int*}' to 'LL {aka long long int}' [-fpermissive]
      LL res=1,base=a;
                    ^
0_0_33669295_24278.cpp:27:11: error: 'b' was not declared in this scope
     while(b)
           ^