View Compilation Error

0_0_30497864_3871.cpp: In function 'bool find_(int)':
0_0_30497864_3871.cpp:61:16: error: expected primary-expression at end of input
     pre[vi] = x%
                ^
0_0_30497864_3871.cpp:61:16: error: expected '}' at end of input
0_0_30497864_3871.cpp:61:16: error: expected '}' at end of input
0_0_30497864_3871.cpp:61:16: error: expected '}' at end of input
0_0_30497864_3871.cpp:61:16: error: expected '}' at end of input