Submission #173744

#TimeUsernameProblemLanguageResultExecution timeMemory
173744juggernautOdd-even (IZhO11_oddeven)Cpython 3
100 / 100
26 ms3428 KiB
N = int(input())
l = 1
h = 10**100
r = -1
while l <= h:
	m = (l + h) // 2
	if m * (m-1) // 2 + 1 <= N:
		r = m
		l = m + 1
	else:
		h = m - 1
print(2*N-r)
#Verdict Execution timeMemoryGrader output
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