View Compilation Error

0_0_29295501_19965.cpp: In function 'long long int mul_mod(long long int, long long int)':
0_0_29295501_19965.cpp:36:21: error: expected primary-expression at end of input
         if(y & 1) n = 
                     ^
0_0_29295501_19965.cpp:36:21: error: expected '}' at end of input
0_0_29295501_19965.cpp:36:21: error: expected '}' at end of input