Buggy python submission (verdict: Time Limit Exceeded):
#!/usr/bin/env python3

import numpy as np


# def input():
#     return sys.stdin.readline().rstrip()


def main():
    n, k = map(int, input().split())

    warps = list(map(int, input().split()))
    warps = [0] + warps
    warps = np.array(warps, dtype=int)

    dp = np.zeros((k.bit_length() + 1, n + 1), dtype=int)

    dp[0, :] = warps

    for h in range(1, len(dp)):
        for j in range(len(dp[0] + 1)):
            dp[h][j] = dp[h - 1][dp[h - 1][j]]

    node = 1
    # for i in reversed(range(k.bit_length())):
    for i in range(k.bit_length(), -1, -1):
        if k >> i & 1:
            node = dp[i][node]

    print(node)


main()


Fixed submission:
#!/usr/bin/env python3

import sys
import numpy as np


def main():
    n, k = map(int, sys.stdin.buffer.readline().split())

    warps = list(map(int, sys.stdin.buffer.readline().split()))
    warps = [0] + warps
    warps = np.array(warps, dtype=int)

    dp = np.zeros((k.bit_length() + 1, n + 1), dtype=int)

    dp[0, :] = warps

    for h in range(1, len(dp)):
        dp[h] = dp[h - 1][dp[h - 1]]

    node = 1
    # for i in reversed(range(k.bit_length())):
    for i in range(k.bit_length(), -1, -1):
        if k >> i & 1:
            node = dp[i][node]

    print(node)


main()

Buggy python submission (verdict: Time Limit Exceeded):
#!/usr/bin/env python3

import sys


def main():
    D = 60
    n, k = map(int, sys.stdin.buffer.readline().split())

    warps = list(map(int, sys.stdin.buffer.readline().split()))
    warps = [0] + warps

    dp = [[0 for j in range(n + 1)] for i in range(D)]
    # print(warps)
    for j in range(1, n + 1):
        dp[0][j] = warps[j]

    for i in range(D - 1):
        for j in range(1, n + 1):
            dp[i + 1][j] = dp[i][dp[i][j]]

    # for dd in dp:
    # print(dd)

    node = 1
    for i in range(D, -1, -1):
        if k >= (1 << i):
            # print(i)
            k -= 1 << i
            node = dp[i][node]

    print(node)


main()



Fixed submission:
#!/usr/bin/env python3

import sys
import numpy as np


def main():
    n, k = map(int, sys.stdin.buffer.readline().split())

    warps = list(map(int, sys.stdin.buffer.readline().split()))
    warps = [0] + warps
    warps = np.array(warps, dtype=int)

    dp = np.zeros((k.bit_length() + 1, n + 1), dtype=int)

    dp[0, :] = warps

    for h in range(1, len(dp)):
        dp[h] = dp[h - 1][dp[h - 1]]

    node = 1
    # for i in reversed(range(k.bit_length())):
    for i in range(k.bit_length(), -1, -1):
        if k >> i & 1:
            node = dp[i][node]

    print(node)


main()

Buggy python submission (verdict: Time Limit Exceeded):
#!/usr/bin/env python3


def main():
    D = 60
    n, k = map(int, input().split())

    warps = list(map(int, input().split()))
    warps = [0] + warps

    dp = [[0 for j in range(n + 1)] for i in range(D)]
    # print(warps)
    for j in range(1, n + 1):
        dp[0][j] = warps[j]

    for i in range(D - 1):
        for j in range(1, n + 1):
            dp[i + 1][j] = dp[i][dp[i][j]]

    # for dd in dp:
    # print(dd)

    node = 1
    for i in range(D, -1, -1):
        if k >= (1 << i):
            # print(i)
            k -= 1 << i
            node = dp[i][node]

    print(node)


main()


Fixed submission:
#!/usr/bin/env python3

import sys
import numpy as np


def main():
    n, k = map(int, sys.stdin.buffer.readline().split())

    warps = list(map(int, sys.stdin.buffer.readline().split()))
    warps = [0] + warps
    warps = np.array(warps, dtype=int)

    dp = np.zeros((k.bit_length() + 1, n + 1), dtype=int)

    dp[0, :] = warps

    for h in range(1, len(dp)):
        dp[h] = dp[h - 1][dp[h - 1]]

    node = 1
    # for i in reversed(range(k.bit_length())):
    for i in range(k.bit_length(), -1, -1):
        if k >> i & 1:
            node = dp[i][node]

    print(node)


main()