［AtCoder］ABC-077｜B - Around Square

設問ページ

• 🔗ABC-077 B - Around Square

提出結果

import math


def getInt():
    return int(input())


def main():
    n = getInt()
    m = int(math.sqrt(n))
    print(m ** 2)


if __name__ == "__main__":
    main()