coin-change.py

#!/bin/python3

import math
import os
import random
import re
import sys

#
# Complete the 'getWays' function below.
#
# The function is expected to return a LONG_INTEGER.
# The function accepts following parameters:
#  1. INTEGER n
#  2. LONG_INTEGER_ARRAY c
#

def getWays(n, c):
    
    l=[0 for i in range(n+1)]
    l[0]=1
    c.sort()
    for val in c:
        for i in range(n+1):
            if l[i]!=0:
                if i+val<=n:
                    l[i+val]+=l[i]
    return l[n]
    # Write your code here

if __name__ == '__main__':
    fptr = open(os.environ['OUTPUT_PATH'], 'w')

    first_multiple_input = input().rstrip().split()

    n = int(first_multiple_input[0])

    m = int(first_multiple_input[1])

    c = list(map(int, input().rstrip().split()))

    # Print the number of ways of making change for 'n' units using coins having the values given by 'c'

    ways = getWays(n, c)

    fptr.write(str(ways) + '\n')

    fptr.close()