View Compilation Error

0_0_24730644_31137.cpp: In function 'int main()':
0_0_24730644_31137.cpp:39:30: error: expected primary-expression at end of input
         max_len=(a_len>=b_len%
                              ^
0_0_24730644_31137.cpp:39:30: error: expected ')' at end of input
0_0_24730644_31137.cpp:39:30: error: expected '}' at end of input
0_0_24730644_31137.cpp:39:30: error: expected '}' at end of input