Challenge (-2)

Question

Make a program which can find the sum of first n natural of numbers by using n² method and can find all the n number which is taken as input are odd or not....

Answer 1

My try:
https://code.sololearn.com/WU6R1y6Eq843/?ref=app

Answer 2

Do you mean
1+2+3+...+n
or
Find odd numbers in the given inputs
or
both?

Answer 3

do you mean "completing the square method"?

Answer 4

@krishna Yes !
(Sorry for late reply I was studying ^_^ )

Answer 5

@aziz please post your code in Playground then post the link here ^_^
@Nomeh what do you mean ? 😸

Answer 6

do you mean use the rule n * (n + 1)/2

Answer 7

def sum(n):
return n*(n+1)/2

Answer 8

here's my java try.....

https://code.sololearn.com/c36s2E2s1a7w/?ref=app

Answer 9

Here is the code:

https://code.sololearn.com/cj1Gih6Ne55b/?ref=app

Answer 10

Can u do it

Answer 11

I don't understand the question

Answer 12

@archana in term of complexity your code is the best one