Accepted
foo.cc: In function 'int main()':
foo.cc:20:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
20 | scanf("%lld", &T);
| ~~~~~^~~~~~~~~~~~
foo.cc:22:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
22 | scanf("%lld", &n);
| ~~~~~^~~~~~~~~~~~
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