foo.c: In function 'main':
foo.c:6:6: warning: statement with no effect [-Wunused-value]
    6 |     x<10000;
      |     ~^~~~~~
foo.c:9:14: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
    9 |     printf("%d",c);
      |             ~^  ~
      |              |  |
      |              |  long long int
      |              int
      |             %lld
foo.c:6:6: warning: 'x' is used uninitialized [-Wuninitialized]
    6 |     x<10000;
      |     ~^~~~~~
foo.c:5:9: note: 'x' declared here
    5 |     int x,n;
      |         ^

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