foo.c: In function 'main':
foo.c:9:28: warning: format '%d' expects a matching 'int *' argument [-Wformat=]
    9 |                 scanf("%d %d",&a[i]),&b[i];
      |                           ~^
      |                            |
      |                            int *
foo.c:9:37: warning: right-hand operand of comma expression has no effect [-Wunused-value]
    9 |                 scanf("%d %d",&a[i]),&b[i];
      |                                     ^

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