leetcode-Pascal's Triangle II

和Pascal's Triangle I差不多的思想。

public class Solution {    public List<Integer> getRow(int rowIndex) {         ArrayList<Integer> results = new ArrayList<Integer>();    results.add(1);    for (int i = 1; i <= rowIndex; ++i) {      int temp = 1;      for (int j = 1; j < i; ++j) {        int innerTemp = results.get(j);        results.set(j, temp + results.get(j));        temp = innerTemp;      }      System.out.println(results);      results.add(1);    }    return results;    }}