Package g0101_0200.s0119_pascals_triangle_ii

Class Solution

java.lang.Object
g0101_0200.s0119_pascals_triangle_ii.Solution
public class Solution extends java.lang.Object
119 - Pascal’s Triangle II.

Easy

Given an integer rowIndex, return the rowIndexth ( 0-indexed ) row of the Pascal’s triangle.

In Pascal’s triangle , each number is the sum of the two numbers directly above it as shown:

Example 1:

Input: rowIndex = 3

Output: [1,3,3,1]

Example 2:

Input: rowIndex = 0

Output: [1]

Example 3:

Input: rowIndex = 1

Output: [1,1]

Constraints:

  • 0 <= rowIndex <= 33

Follow up: Could you optimize your algorithm to use only O(rowIndex) extra space?

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    java.util.List<java.lang.Integer>
    getRow(int rowIndex)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • getRow

      public java.util.List<java.lang.Integer> getRow(int rowIndex)