题目
977. Squares of a Sorted Array
Given an array of integers A sorted in non-decreasing order, return an array of the squares of each number, also in sorted non-decreasing order.
Example 1:
Input: [-4,-1,0,3,10]
Output: [0,1,9,16,100]Example 2:
Input: [-7,-3,2,3,11]
Output: [4,9,9,49,121]Note:
- 1 <= A.length <= 10000
- -10000 <= A[i] <= 10000
- A is sorted in non-decreasing order.
答案
func sortedSquares(A []int) []int {
size := len(A)
res := make([]int, size)
for l, r, i := 0, size-1, size-1; l <= r; i-- {
if A[l]+A[r] < 0 {
res[i] = A[l] * A[l]
l++
} else {
res[i] = A[r] * A[r]
r--
}
}
return res
}参考链接
977. Squares of a Sorted Array
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