foo.cc: In function 'int main()':
foo.cc:7:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    7 |     scanf("%d%d",&n,&T);
      |     ~~~~~^~~~~~~~~~~~~~
foo.cc:9:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    9 |         scanf("%d%d",&w,&t);
      |         ~~~~~^~~~~~~~~~~~~~

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