View Compilation Error

0_0_30585436_29454.cpp: In function 'void solve()':
0_0_30585436_29454.cpp:52:18: error: expected primary-expression before '%' token
   vector<int> ch;%0
                  ^
0_0_30585436_29454.cpp:52:19: error: expected '}' at end of input
   vector<int> ch;%0
                   ^
0_0_30585436_29454.cpp:52:19: error: expected '}' at end of input