View Compilation Error

0_0_19151176_20214.cpp:42:31: error: 'BigIntege' does not name a type
 inline bool operator < (const BigIntege
                               ^
0_0_19151176_20214.cpp:42:31: error: expected ',' or '...' at end of input
0_0_19151176_20214.cpp:42:31: error: expected ')' at end of input
0_0_19151176_20214.cpp:42:31: error: expected initializer at end of input