문제
Add up the prices in the cart. If the total is at least discount_threshold, take discount_percent percent off the whole total.
Implement cart_total(prices, discount_threshold, discount_percent).
Input
prices: The item prices. discount_threshold: The total that unlocks the discount. discount_percent: The discount in percent.
Output
Return the amount to pay.
제약 조건
0 ≤ length ≤ 1,000; 0 ≤ each price ≤ 100,000; 0 ≤ discount_percent ≤ 100
예시
예시 1
입력:
prices = [40, 35, 25]
discount_percent = 10
discount_threshold = 100
예상 출력:
expected = 90.0입력:
std::vector<long long> prices = {40, 35, 25};
long long discount_percent = 10;
long long discount_threshold = 100;
예상 출력:
double expected = 90.0;입력:
long[] prices = new long[] {40, 35, 25};
long discount_percent = 10;
long discount_threshold = 100;
예상 출력:
double expected = 90.0;설명
The total is 100, which reaches the threshold, so 10% off: 90.
예시 2
입력:
prices = [20, 30]
discount_percent = 10
discount_threshold = 100
예상 출력:
expected = 50.0입력:
std::vector<long long> prices = {20, 30};
long long discount_percent = 10;
long long discount_threshold = 100;
예상 출력:
double expected = 50.0;입력:
long[] prices = new long[] {20, 30};
long discount_percent = 10;
long discount_threshold = 100;
예상 출력:
double expected = 50.0;설명
The total 50 is below 100, so no discount: 50.
참고 자료
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