View Compilation Error

0_0_16599444_26067.cpp: In function 'int count(const bint&)':
0_0_16599444_26067.cpp:243:15: error: no match for 'operator[]' (operand types are 'const bint {aka const csl::BigDec<>}' and 'int')
     ret += g[n[i]];
               ^