Baekjoon 2292번 벌집

문제

https://www.acmicpc.net/problem/2292

걸린 시간

00 : 20 : 11

풀이

Python3

if __name__ == "__main__":
    N = int(input())

    left = 2
    right = 7
    count = 1

    while True:
        if N == 1:
            count = 0
            break

        if N >= left and N <= right:
            break

        left += 6 * (count)
        right += 6 * (count+1)
        count += 1

    print(count+1)