Question

How many coins are needed get a triangle with six coins in the

base?​

Answer 1

We have N coins which need to arrange in form of a triangle, i.e. first row will have 1 coin, second row will have 2 coins and so on, we need to tell maximum height which we can achieve by using these N coins.

Examples:

Input : N = 7

Output : 3

Maximum height will be 3, putting 1, 2 and

then 3 coins. It is not possible to use 1

coin left.

Input : N = 12

Output : 4

Maximum height will be 4, putting 1, 2, 3 and

4 coins, it is not possible to make height as 5,

because that will require 15 coins.

Answer 2

Answer:

how many coins are needed to get a triangle with six coins in the nase ?