Target Sum: coding question

Problem

You get an integer array nums and an integer target. Put a + sign or a - sign in front of each item in nums. Then add the signed items.

Return the number of different sign choices that give the sum target. Two choices are different when at least one item has a different sign.

Input:: nums = [0,4], target = 4
Output:: 2
Explanation:: The sign in front of 0 does not change the sum. So +0 + 4 and -0 + 4 both count.

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Problem

You get an integer array nums and an integer target. Put a + sign or a - sign in front of each item in nums. Then add the signed items.

Return the number of different sign choices that give the sum target. Two choices are different when at least one item has a different sign.

Input:: nums = [0,4], target = 4
Output:: 2
Explanation:: The sign in front of 0 does not change the sum. So +0 + 4 and -0 + 4 both count.

SysRound wrote this statement. A reference solution checks every example.