Problema
Count how many numbers in the list are greater than zero. Zero is neither positive nor negative.
Implement count_positives(numbers).
Input
numbers: The list of integers.
Output
Return the count.
Vincoli
0 ≤ length ≤ 100,000; each value fits in a 64-bit integer
Esempi
Esempio 1
Input:
numbers = [3, -1, 0, 7, 2]
Output atteso:
expected = 3Input:
std::vector<long long> numbers = {3, -1, 0, 7, 2};
Output atteso:
long long expected = 3;Input:
long[] numbers = new long[] {3, -1, 0, 7, 2};
Output atteso:
long expected = 3;Spiegazione
3, 7 and 2 are positive: 3.
Esempio 2
Input:
numbers = [0, 0, -5]
Output atteso:
expected = 0Input:
std::vector<long long> numbers = {0, 0, -5};
Output atteso:
long long expected = 0;Input:
long[] numbers = new long[] {0, 0, -5};
Output atteso:
long expected = 0;Spiegazione
No value is above zero: 0.
Riferimenti
Questa sfida è adattata per CodeUtility. Segui la traccia e i vincoli sopra.