foo.cc: In function 'int main()':
foo.cc:28:30: warning: format '%lld' expects argument of type 'long long int', but argument 2 has type 'int' [-Wformat=]
   28 |                 printf("a^%lld",i);
      |                           ~~~^  ~
      |                              |  |
      |                              |  int
      |                              long long int
      |                           %d
foo.cc:6:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    6 |     scanf("%lld",&n);
      |     ~~~~~^~~~~~~~~~~

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Found 5 testcases.
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