foo.c: In function 'main':
foo.c:6:23: warning: format '%lld' expects argument of type 'long long int *', but argument 3 has type 'double *' [-Wformat=]
    6 |         scanf("%lf %lld",&x,&k);
      |                    ~~~^     ~~
      |                       |     |
      |                       |     double *
      |                       long long int *
      |                    %le
foo.c:29:19: warning: field precision specifier '.*' expects argument of type 'int', but argument 2 has type 'double' [-Wformat=]
   29 |         printf("%.*lf",k,a);
      |                 ~~^~~  ~
      |                   |    |
      |                   int  double

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