2239. Find Closest Number to Zero

Easy

Given an integer array nums of size n, return the number with the value closest to 0 in nums. If there are multiple answers, return the number with the largest value.

Example 1:

Input: nums = [-4,-2,1,4,8]
Output:
 1
Explanation:
The distance from -4 to 0 is |-4| = 4.
The distance from -2 to 0 is |-2| = 2.
The distance from 1 to 0 is |1| = 1.
The distance from 4 to 0 is |4| = 4.
The distance from 8 to 0 is |8| = 8.
Thus, the closest number to 0 in the array is 1.

Example 2:

Input: nums = [2,-1,1]
Output:
 1
Explanation:
 1 and -1 are both the closest numbers to 0, so 1 being larger is returned.

Constraints:

• 1 <= n <= 1000

• -105 <= nums[i] <= 105

解題

func findClosestNumber(nums []int) int {
    ans := nums[0]
    
    for _, val := range nums {
        if abs(val)==abs(ans) && val>ans {
            ans = val
        } else if abs(val)< abs(ans) {
            ans = val
        }
    }
    return ans
}

func abs(n int) int {
    if n<0 { return -n }
    return n
}