[위클리 챌린지] 1주차

https://programmers.co.kr/learn/courses/30/lessons/82612

코딩테스트 연습 - 1주차

 

- Python 풀이

 

def solution(price, money, count):
    return 0 if sum([price * i for i in range(1, count+1)]) < money else sum([price * i for i in range(1, count+1)]) - money