foo.c: In function 'main':
foo.c:20:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
  ^~~~~~~~~~~~~~~~~~~~~
foo.c:23:4: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d", &score[j]);
    ^~~~~~~~~~~~~~~~~~~~~~

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