Efficient Prime Counting with Sieve of Eratosthenes (LeetCode 204)
Given an integer n, return the number of prime numbers that are strict less than n.
Example 1:
<strong>Input:</strong> n = 10
<strong>Output:</strong> 4
<strong>Explanation:</strong> There are 4 primes less than 10: 2, 3, 5, 7.
Example 2:
<strong>Input:</strong> n = 0
<strong>Output:</st ...
Posted on Thu, 17 Sep 2026 16:10:49 +0000 by skytreader