0_0_30718588_2084.cpp: In member function 'void AC_::build()': 0_0_30718588_2084.cpp:35:100: error: invalid types 'int[int]' for array subscript for(int i=0;i<4;i++) if(c[0][i])fail[c[0][i]]=0,q.push(c[0][i]),val[c[0][i]]|=val[fail[0][i]]; ^