6.2-5

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MAX-HEAPIFY(A, i)  while i ≤ A.heap-size      l = LEFT(i)      r = RIGHT(i)      if l ≤ A.heap-size and A[l] > A[i]          largest = l      else          largest = i      if r ≤ A.heap-size and A[r] > A[i]          largest = r      if largest ≠ i          exchange A[i] with A[largest]          i = largest      else          break
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