I need help guys. I'm a beginner in coding and I'm doing python

Question

I'm trying to find the sum of first N number. From 1 to that number N. This was my code
N = int(input())
sum = 1
for i in range( 1,N+1,1)
sum += 1
print (N)

Answer 1

N = int(input())
sum = 0
for i in range(N + 1):
sum += i

print(sum)

Answer 2

Hint: The sum of all the natural numbers up to a number is equal to half the product of the number and the next one.

Answer 3

When you test your code on playground, you'll find that your output N is 1 too many. This is because your sum is already 1 before we enter the loop and start adding the numbers.

Answer 4

#creating list and then sum up:
print(sum([i for i in range(1,N+1)]))

#directly sum up,
#without creating unnecessary list:
print(sum(range(N+1)))

Answer 5

Shadoff
I think sum(range(...)) would work, too

Answer 6

sum = 0
for i in range(1, 11):
sum+=i
print(sum)

User input does not needed in this code
You can use this code instead.