# Program to print maximum number of characters by copy pasting in n steps in Python?

Suppose we have a number n; we have to find the maximum number of characters we can enter using n operations where each operation is like

• Inserting the character "x".

• Copy all characters.

• Paste

So, if the input is like n = 12, then the output will be 81.

To solve this, we will follow these steps

• if n <= 4, then

• return n

• v := 6, x := 3, i := 5, j := 0

• while i is not same as n, do

• v := v + x

• i := i + 1, j := j + 1

• if j is divisible by 3, then

• x := integer of (x * 1.5)

• otherwise when j is not divisible by 3, then

• do nothing

• otherwise,

• x := x * 2

• return v

Let us see the following implementation to get better understanding

## Example

Live Demo

class Solution:
def solve(self, n):
if n <= 4:
return n

v = 6
x = 3
i = 5
j = 0
while i != n:
v += x
i += 1
j += 1

if j % 3 == 0:
x = int(x * 1.5)
elif j % 3 == 1:
pass
else:
x *= 2

return v

ob = Solution()
n = 12
print(ob.solve(n))

## Input

12

## Output

81

Updated on: 10-Nov-2020

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