foo.c: In function 'main':
foo.c:7:18: warning: format '%ld' expects argument of type 'long int *', but argument 2 has type 'int *' [-Wformat=]
    7 |         scanf("%ld", &n);
      |                ~~^   ~~
      |                  |   |
      |                  |   int *
      |                  long int *
      |                %d
foo.c:13:20: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'int' [-Wformat=]
   13 |         printf( "%ld", x);
      |                  ~~^   ~
      |                    |   |
      |                    |   int
      |                    long int
      |                  %d

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