2574. Left and Right Sum Differences

class Solution {
    public int[] leftRigthDifference(int[] nums) {
        int n = nums.length;
        int [] left= new int [n];
        int i=0;
        for(i=1;i<n;i++){
            left[i]=left[i-1]+nums[i-1];
        }
        int [] right= new int [n];
        for(i=n-2;i>=0;i--){
            right[i]=right[i+1]+nums[i+1];
        }
        int [] ans=new int[n];
        for(i=0;i<n;i++){
            ans[i]=Math.abs(left[i]-right[i]);
        }
        return ans;
    }
}