foo.c: In function 'main':
foo.c:26:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   26 |  scanf("%d %d", &n1, &n2);
      |  ^~~~~~~~~~~~~~~~~~~~~~~~
foo.c:28:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   28 |   scanf("%d", &a[i]);
      |   ^~~~~~~~~~~~~~~~~~
foo.c:30:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   30 |   scanf("%d", &b[i]);
      |   ^~~~~~~~~~~~~~~~~~
foo.c: In function 'FindMaxNeg':
foo.c:4:9: warning: 'max' may be used uninitialized in this function [-Wmaybe-uninitialized]
    4 |  int i, max;
      |         ^~~
foo.c: In function 'main':
foo.c:4:9: warning: 'max' may be used uninitialized in this function [-Wmaybe-uninitialized]
foo.c:4:9: warning: 'max' may be used uninitialized in this function [-Wmaybe-uninitialized]

[Hydro](https://hydro.ac)提供评测服务