Problema
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.
Restricciones
0 ≤ length ≤ 1,000; 0 ≤ each price ≤ 100,000; 0 ≤ discount_percent ≤ 100
Ejemplos
Ejemplo 1
Entrada:
prices = [40, 35, 25]
discount_percent = 10
discount_threshold = 100
Salida esperada:
expected = 90.0Entrada:
std::vector<long long> prices = {40, 35, 25};
long long discount_percent = 10;
long long discount_threshold = 100;
Salida esperada:
double expected = 90.0;Entrada:
long[] prices = new long[] {40, 35, 25};
long discount_percent = 10;
long discount_threshold = 100;
Salida esperada:
double expected = 90.0;Explicación
The total is 100, which reaches the threshold, so 10% off: 90.
Ejemplo 2
Entrada:
prices = [20, 30]
discount_percent = 10
discount_threshold = 100
Salida esperada:
expected = 50.0Entrada:
std::vector<long long> prices = {20, 30};
long long discount_percent = 10;
long long discount_threshold = 100;
Salida esperada:
double expected = 50.0;Entrada:
long[] prices = new long[] {20, 30};
long discount_percent = 10;
long discount_threshold = 100;
Salida esperada:
double expected = 50.0;Explicación
The total 50 is below 100, so no discount: 50.
Referencias
Este reto está adaptado para CodeUtility. Sigue el enunciado y las restricciones indicadas arriba.