foo.c: In function 'main':
foo.c:16:5: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   16 |     scanf("%d",&N);
      |     ^~~~~~~~~~~~~~
foo.c:19:13: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   19 |             scanf("%d",&map[i][j]);
      |             ^~~~~~~~~~~~~~~~~~~~~~

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