Package g0401_0500.s0441_arranging_coins

Class Solution

java.lang.Object
g0401_0500.s0441_arranging_coins.Solution
public class Solution extends java.lang.Object
441 - Arranging Coins.

Easy

You have n coins and you want to build a staircase with these coins. The staircase consists of k rows where the ith row has exactly i coins. The last row of the staircase may be incomplete.

Given the integer n, return the number of complete rows of the staircase you will build.

Example 1:

Input: n = 5

Output: 2

Explanation: Because the 3rd row is incomplete, we return 2.

Example 2:

Input: n = 8

Output: 3

Explanation: Because the 4th row is incomplete, we return 3.

Constraints:

  • 1 <= n <= 231 - 1

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    arrangeCoins(int n)
     

    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

    • arrangeCoins

      public int arrangeCoins(int n)