Submission #6219141

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Source Code Expand

import os
import sys

import numpy as np

if os.getenv("LOCAL"):
    sys.stdin = open("_in.txt", "r")

sys.setrecursionlimit(2147483647)
INF = float("inf")
IINF = 10 ** 18
MOD = 10 ** 9 + 7

S = sys.stdin.readline().rstrip()
K = int(sys.stdin.readline())

i = 0
s = set()
while i + K <= len(S):
    s.add(S[i:i + K])
    i += 1
print(len(s))

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Judge Result