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Swap Permutation
Swap Permutation
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Here is my solution in java, javascript, python, C, C++, Csharp HackerRank Swap Permutation Problem Solution
!/bin/python3
import os import sys
#
Complete the swapPermutation function below.
# def swapPermutation(n, k): # # Write your code here. # mod = 1000000007 s = [1] + [0] * k t = [1] + [0] * k for i in range(1, n): temp = sum(s[max(k - i, 0):k]) % mod for j in range(k, 0, -1): s[j] = (s[j] + temp) % mod if j > i: temp = (temp + s[j - i - 1] - s[j - 1]) % mod else: temp = (temp - s[j - 1]) % mod for j in range(k, 0, -1): t[j] = (t[j] + i * t[j - 1]) % mod return sum(s[k % 2::2]) % mod, sum(t) % mod
if name == 'main': fptr = open(os.environ['OUTPUT_PATH'], 'w')
Here is Swap Permutation problem solution - https://programs.programmingoneonone.com/2021/07/hackerrank-swap-permutation-problem-solution.html
This is basically what I had, really liked your solution. lemon break up spell
I do not understand this method , can anyone help me to figure out this ? Kerala vasiyam specialist in Coimbatore