2021.01.05 연습

  • 사용언어 : java

class Solution {
    public int[] runningSum(int[] nums) {
        
        int[] result = new int[nums.length];
        for (int i = 0; i < nums.length; i ++) {
            if (i == 0) {
                result[0] = nums[0];
            } else {
                result[i] = nums[i]+result[i-1];
            }
        }
        return result; 
    }
}

Runtime: 0 ms, faster than 100.00% of Java online submissions for Richest Customer Wealth. Memory Usage: 38.9 MB, less than 36.11% of Java online submissions for Richest Customer Wealth.

 

  • better code

class Solution {
    public int[] runningSum(int[] nums) {
        
        for(int i = 1; i < nums.length; i++){
            nums[i] += nums[i-1];
        }
        return nums;
    }
}