README.md

Algorithm

BOJ, Programmers
Language : Python

Tip

2차원 배열 90도 회전(뒤집기)

list(zip(*arr[::-1]))

재귀함수 사용 시

import sys
sys.setrecursionlimit(10**6)

nCr

from operator import mul
from functools import reduce

def nCr(n, r):
    r = min(r, n-r)
    numer = reduce(mul, range(n, n-r, -1), 1)
    denomi = reduce(mul, range(1, r+1), 1)
    return numer // denomi