foo.cc: In function 'int main()':
foo.cc:23:18: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
   23 |         printf("%d\n",ans);
      |                 ~^    ~~~
      |                  |    |
      |                  int  long long int
      |                 %lld

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Found 10 testcases.
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