foo.cc: In function 'int main()':
foo.cc:10:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   10 |         scanf("%d%d",&a,&b);
      |         ~~~~~^~~~~~~~~~~~~~
foo.cc:16:13: warning: iteration 1000004 invokes undefined behavior [-Waggressive-loop-optimizations]
   16 |         d[i]+=d[i-1];
      |         ~~~~^~~~~~~~
foo.cc:14:18: note: within this loop
   14 |     for(int i=1;i<=1000005;i++)
      |                 ~^~~~~~~~~

Found 10 testcases.
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