/Python/Let's consider an infinite sequence of digits constructed of ascending powers of 10 written one after another python solution

Let's consider an infinite sequence of digits constructed of ascending powers of 10 written one after another python solution

import math
import sys

f = lambda x: math.sqrt(2.0 * x + 0.25) - 0.5
g = lambda x: f(x) % 1 == 0

inp = map(int, sys.stdin.read().split()[1:])

print(" ".join("1" if g(x-1) else "0" for x in inp))

Source: stackoverflow.com

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