Sum of Consecutive Numbers

Question

Take a number N as input and output the sum of all
numbers from 1 to N (including N).
Sample Input
100
Sample Output
5050
Explanation: The sum of all numbers from 1 to 100 is equal
to 5050.

You can iterate over a range and calculate
the sum of all numbers in the range.
Remember, range (a, b) does not include b,
thus you need to use b+1 to include b in the
range.

Answer 1

Taha Nekhli ,

# basic version using a for loop
number = int(input())
total = 0
for num in range(1, number +1):
total += num
print(total)

# version using sum() built-in function
number = int(input())
print(sum(range(1, number +1)))

Answer 2

Taha Nekhli

what does this [x+1:] here

Why not to add x in a temp variable like total

total = total + x

range is already a function so you can't use as a variable so do this:

for x in range (a, b + 1):

Answer 3

Hello. Do you have any attempts?

Try to use **for** loop and **range** function

Answer 4

N = int(input())
#your code goes here
a = 1
b = N
range = [a,b+1]
for x in range :
print([x+1:])
I tried this but it doesn’t work

Answer 5

n = int(input())
print(n*(n+1)/2)
Learn mathematics if you want to do so solutions..

Answer 6

Hi guys please a solution for this thaanx