If input is [1,2,3] then how get output [1,2,4]...

Question

Note that the numbers are in array..

Answer 1

In Python
a = [1,2,3]
b = [2**(i-1) for i in a]
print(a)
print(b)

Answer 2

arr[2] += 1

Without more context, this is all I can produce.

Answer 3

input : x
output : 2^(x-1)

Answer 4

Assuming, input = [1, 2, 3, 4, 5,...]

1) Let (output) be an empty array [ ].

2) Use a for loop and let (x) be the i'th item of the array (input).

3) Set i'th item of the (output) to :

3.1) 2 to the power of (x - 1).
Then the output will be [1, 2, 4, 8, 16,...].

3.2) (x + 1) if i is greater than equal to 2 and (x) if not. Then the output will be [1, 2, 4, 5, 6,...].

3.3) (x + 1) if i is equal to 2 and (x) if not. Then the output will be [1, 2, 4, 4, 5,...]

Depending on the output you want choose any one of 3.1, 3.2 or 3.3 and this concept will work on any language that supports assignment, if statement and for statement.

Answer 5

desai amber Please choose a specific programing language and an example of the output array with more than three values. Ex : python, [1, 2, 4, 8, 16...]

Then we can help you to figure out the appropriate equation and also make you understand it.

Answer 6

This is the code for python:
import math

input = [1, 2, 3, 4, 5]
output = []

for i in input:
output.append(math.pow(2, i - 1))

print(output)

This is the code for JavaScript:
var input = [1, 2, 3, 4, 5];
var output = [];

for (var i = 0; i < input.length; i++)
{
output.push(Math.pow(2, input[i] - 1));
}

Answer 7

I understand both of your answers.. Thanks Muhammad hasan and Cyrus Ornob Corraya..

Answer 8

ok

Answer 9

Please friend Cyrus Ornab Corraya.. Please type full programme in sequence.. I don't know about more in Array structure..