answer.code: In function ‘solve’:
answer.code:45:20: warning: function returns address of local variable [-Wreturn-local-addr]
   45 |             return c;
      |                    ^
answer.code: In function ‘main’:
answer.code:59:7: error: assignment to expression with array type
   59 |     b = solve(n,a);
      |       ^
answer.code:65:22: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘int *’ [-Wformat=]
   65 |             printf("%d ", &b[i]);
      |                     ~^    ~~~~~
      |                      |    |
      |                      int  int *
      |                     %ls
answer.code:54:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   54 |     scanf("%d", &n);
      |     ^~~~~~~~~~~~~~~
answer.code:57:13: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   57 |             scanf("%d", &a[i]);
      |             ^~~~~~~~~~~~~~~~~~