View Compilation Error

0_0_38567028_4944.cpp: In function 'int main()':
0_0_38567028_4944.cpp:21:35: error: 'num' was not declared in this scope; did you mean 'enum'?
   21 |                             temp+=num[p][q];//累加每次循环子矩阵中每个元素的值
      |                                   ^~~
      |                                   enum