DP factorial

'''
0~n번째 factorial dp array를 return
ex) dp_factorrial(5) : [1, 1, 2, 6, 24, 120]
'''
def dp_factorial(n):
    dp = [0]*(n+1)
    dp[0] = 1
    for i in range(1,n+1):
        dp[i] = dp[i-1] * i
    return dp