foo.cc: In function 'int main()':
foo.cc:29:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   29 |     scanf("%d", &n); //输入网格的行数和列数 n。
      |     ~~~~~^~~~~~~~~~
foo.cc:32:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   32 |             scanf("%d", &Grid[i][j]); //输入每个单元格中叠放的正方体数量。
      |             ~~~~~^~~~~~~~~~~~~~~~~~~

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Found 10 testcases.
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