Submission #1019655

#	Time	Username	Problem	Language	Result	Execution time	Memory
1019655		Minbaev	Odd-even (IZhO11_oddeven)	Pypy 2	0 / 100	21 ms	19264 KiB

oddeven

  n = int(input())

  l = 1
  r = 1e51
  ans = -1
  while l <= r:
    mid = (l + r) // 2

    sum = mid * (mid + 1) // 2
    if sum >= n:
      ans = mid
      r = mid - 1
    else:
      l = mid + 1

  # Correct calculation for 'val'
  val = (ans * (ans + 1) // 2 - n) * 2 + (ans - 1)

  print(val)

Compilation message (stderr)

Sorry: IndentationError: unexpected indent (oddeven.py, line 1)

• Subtask 1: 0 / 100