2021.02.07 연습

 

  • 사용언어 : java

 


class Solution {
    public int[] createTargetArray(int[] nums, int[] index) {

        List<Integer> list = new ArrayList<>();
          
        for (int i = 0; i < nums.length; i++) {
            list.add(index[i], nums[i]);
        }
        
        int j =0;
        int[] target = new int[list.size()];
        
        for (int v : list) {
            target[j++] = v;
        }
        
        return target;
    }
}

Runtime: 1 ms, faster than 43.76% of Java online submissions for Create Target Array in the Given Order. Memory Usage: 37.8 MB, less than 34.13% of Java online submissions for Create Target Array in the Given Order.

  • 다른 코드 참고

public int[] createTargetArray(int[] nums, int[] index) {
	List<Integer> list = new LinkedList<>();
	IntStream.range(0, index.length)
			 .forEach(i -> list.add(index[i], nums[i]));
	// convert the LL to an array
	return list.stream()
			   .mapToInt(i -> i)
			   .toArray();
}


class Solution {
    public int[] createTargetArray(int[] nums, int[] index) {
        List<Integer> x = new ArrayList<>();
        for(int i=0; i<nums.length; i++){
            x.add(index[i], nums[i]);
        }
        
        for(int i=0; i<nums.length; i++)
            nums[i] = x.get(i);
        
        return nums;
    }
}