#1869Medium#5 in ServiceNow's list· asked at 7 companies
Target sum
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What we know
Example 1
Input: nums = [1,1,1,1,1], target = 3 Output: 5
-1+1+1+1+1, +1-1+1+1+1, +1+1-1+1+1, +1+1+1-1+1, +1+1+1+1-1.
Example 2
Input: nums = [1], target = 1 Output: 1
Constraints
- •
1 <= nums.length <= 20 - •
0 <= nums[i] <= 1000 - •
0 <= sum(nums[i]) <= 1000 - •
-1000 <= target <= 1000