Class Solution


  • public class Solution
    extends 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 Detail

      • Solution

        public Solution()
    • Method Detail

      • arrangeCoins

        public int arrangeCoins​(int n)