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# Sum of consecutive numbers

I have to calculate the sum of consecutive numbers from 1 to N This is my attempt at the code: N= int(input()) for x in range (1 , N): print (x+N) for example if the input is 380 my outputs are: 381 382 383 .... etc anyone can help with the flaw of my code?

9 Answers

+ 2

print(sum(range(0, N+1)))

+ 2

N = int(input())
#your code goes here
sum = 0
numbers = range(1,N + 1)
for x in numbers:
sum += x
print(sum)
Try this code

+ 1

For example:
for x in range (1, 100):
print (x+100)
This code will just add the N number to the iterator (x).
You can do something like:
y=0
for x in range (1, 100):
y+=x
print (y)
Explanation: this will keep adding the numbers to 'y' until N is reached. Then it'll print the final one.

+ 1

Try this 👇👇👇
N = int(input())
print(N*(N+1)//2)

0

Or you can try using the sum() function.
N = int(input())
N+=1
num = list(range(N))
total = sum(num)
print(total)

0

N = int(input())
count = N
x = range(1, N +1)
for i in x:
N = i + N
print(N - count)

0

N = int(input())
s = N*(N+1)/2
print(int(s))

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This code works
x = 358 * (358+1) / 2
print(int(x))
But as soon as I answer the 2nd test, it counts the first one as incorrect so I’m not able to move onto the third. Is this happening for anyone else? Am I doing something wrong?

- 2

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