[프로그래머스] 위클리 챌린지 1주차

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

코딩테스트 연습 - 1주차

2021-08

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class Solution {
    public long solution(int price, int money, int count) {
        long answer = (long)money - ((count*(price + ((long)price*count)))/2);
        return answer < 0 ? answer*-1 : 0;
    }
}