foo.c: In function 'main':
foo.c:7:10: warning: too many arguments for format [-Wformat-extra-args]
    7 |   printf("d",x);
      |          ^~~
foo.c:4:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
    4 |  scanf("%d",&n);
      |  ^~~~~~~~~~~~~~

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