class Solution { boolean[] vis; public List<List<Integer>> permuteUnique(int[] nums) { List<List<Integer>> ans = new ArrayList<List<Integer>>(); List<Integer> perm = new ArrayList<Integer>(); vis = new boolean[num
class Solution { public int[] twoSum(int[] nums, int target) { int n=nums.length; HashMap<Integer,Integer> map=new HashMap(); for(int i=0;i<n;i++){ int res=target-nums[i]; if(map.containsKey(res)){
class Solution { boolean[] vis; public List<List<Integer>> permuteUnique(int[] nums) { List<List<Integer>> ans = new ArrayList<List<Integer>>(); List<Integer> perm = new ArrayList<Integer>(); vis = new boolean[num...
class Solution { public int[] twoSum(int[] nums, int target) { int n=nums.length; HashMap<Integer,Integer> map=new HashMap(); for(int i=0;i<n;i++){ int res=target-nums[i]; if(map.containsKey(res)){ ...
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