Submission #14555606

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Source Code Expand

import sys

read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

N = int(read())

def main(N):
    A = [1]
    for _ in range(100):
        A.append(A[-1] * 26)
    for n in range(1, 100):
        # n 文字のは全て使い終わった
        if N > A[n]:
            N -= A[n]
            continue
        # n 文字の中で勝負をつける
        N -= 1
        ret = []
        for _ in range(n):
            N, r = divmod(N, 26)
            ret.append(r)
        break
    ret = [chr(ord('a') + x) for x in ret]
    return ''.join(reversed(ret))

print(main(N))

Submission Info

Judge Result