human
Generate program that has the following intention:

The program defines a function named p1 that takes an integer n as input and returns the number of 1s in the binary representation of n. The program achieves this by repeatedly dividing n by 2 until it reaches 0, keeping track of the number of 1s in each step. The while loop continues as long as n is not equal to 0. In each iteration of the loop, the number of 1s is counted using the count variable, and n is set to the least significant bit of n that is set to 1 (using the bitwise AND and right shift operators). This process is repeated until n is reduced to 0, at which point the count variable contains the number of 1s in the binary representation of n. The function then returns the count variable.
gpt
--- Reasoning ---
1. Is the question multiple-choice question?
No
2. Is it implied multiple-choice question?
No
3. If two experts were independently asked the question, will the final answer be exactly the same?
No

--- Answer ---
open