0_0_18823427_5384.cpp: In function 'int cal()': 0_0_18823427_5384.cpp:24:40: error: expected primary-expression at end of input for(int i = 1; i <= 9; ++i) pre[i] % ^ 0_0_18823427_5384.cpp:24:40: error: expected '}' at end of input