/in/foo.cc: In function 'int main()':
/in/foo.cc:66:33: error: invalid types 'int[int]' for array subscript
                     if(tmp[j - 1][k])
                                 ^
/in/foo.cc:69:25: error: invalid types 'int[int]' for array subscript
                 if(tmp[n][j])
                         ^