View Compilation Error

0_0_33317851_30211.cpp: In function 'void convex()':
0_0_33317851_30211.cpp:67:60: error: expected primary-expression at end of input
   while(nn>t and (((p[nn-2]-p[nn-1])^(q[i]-p[nn-1]))>=0))nn-
                                                            ^
0_0_33317851_30211.cpp:67:60: error: expected '}' at end of input
0_0_33317851_30211.cpp:67:60: error: expected '}' at end of input