foo.cc: In function 'int main()':
foo.cc:13:69: warning: 'bucket[4]' is used uninitialized in this function [-Wuninitialized]
   13 |  cout << (bucket[0] * bucket[1] + bucket[2] * bucket[3] + bucket[4] * bucket[4]) / 2 << endl;
      |                                                           ~~~~~~~~~~^~~~~~~~~~~

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