foo.cc:145:4: warning: "/*" within comment [-Wcomment]
  145 |  } /*
      |     
foo.cc: In function 'int main()':
foo.cc:272:7: warning: iteration 100 invokes undefined behavior [-Waggressive-loop-optimizations]
  272 |   S[i]=n;
      |   ~~~~^~
foo.cc:271:12: note: within this loop
  271 |   for(i=0;i<=100;i++)
      |           ~^~~~~

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