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Problem 86

Easy

1 · Worked examples

0 / 3

Type an input and write what you think is the output . Each problem is converted to Web Assembly, so any possible input will show the corresponding output. Only correct predictions count.

solution()
returns

2 · Which problem is it?

Locked until you have predicted 3 outputs correctly.

The accepted solution

1int solution(unsigned int n) {
2
3 int count = 0;
4
5 while (n) {
6 n = n & (n - 1);
7 count++;
8 }
9
10 return count;
11}

Names have been stripped. The signature is the only clue you get for free. Compiled as C++20 with the standard headers and using namespace std; already in scope.