#### Exercise8

Write a **Python algorithm** that **asks** the** user** to enter an** integer n** and display the value of the **sum = 1 + 2 + … + n**

#### Solution

# ask user to enter n = int(input("Enter a positive integer: ")) # initializing the sum sum = 0 # browsing through all integers from 1 to n for i in range(1, n+1): sum += i print("The sum of the first", n, "positive integers is: ", sum)

__In this program__:

**we first ask the user:**to enter a positive integer n using the**input()**function and convert it to an integer using the**int()**function.**We then initialize a variable sum to 0:**which will be used to keep track of the sum of the integers.**We use a for loop:**to iterate over the integers from 1 to n using the range() function.**For each integer i:**we add it to the current value of sum.**Finally, we use the print() function:**to display the result of the sum.

**Younes Derfoufi**

**CRMEF OUJDA**

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