foo.c: In function 'main':
foo.c:20:26: error: expected ')' before ';' token
   20 |         scanf("%d %d",&n1;&n2);
      |              ~           ^
      |                          )
foo.c:20:20: warning: format '%d' expects a matching 'int *' argument [-Wformat=]
   20 |         scanf("%d %d",&n1;&n2);
      |                   ~^
      |                    |
      |                    int *
foo.c:19:16: warning: unused variable 'n2' [-Wunused-variable]
   19 |         int n1,n2;
      |                ^~

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