Problem Brief
Count Even Numbers
OA
Given an integer array nums, return the number of elements that are even.
An integer is even if it is divisible by 2. If nums is empty, return 0.
1Example 1
Input
nums = [1,2,4,7,10]
Output
3
Explanation
The even numbers are 2, 4, and 10.
2Example 2
Input
nums = []
Output
0
Explanation
The array is empty.
3Example 3
Input
nums = [-3,-2,0,5,8]
Output
3
Explanation
The even numbers are -2, 0, and 8.
Constraints
Limits and guarantees your solution can rely on.
0 <= nums.length <= 1000-100000 <= nums[i] <= 100000