LeetCode : 165. Compare Version Numbers

[congr]

https://leetcode.com/problems/compare-version-numbers/

[congr]

[congr]

class Solution {
    public int compareVersion(String version1, String version2) {
        String[] v1 = version1.split("\\."); // !!! [ ] or \\
        String[] v2 = version2.split("\\."); // !!! [ ] or \\

        int p1 = 0, p2 = 0;
        while (p1 < v1.length || p2 < v2.length) { // 1.0.1 vs 1.0 => 1 
            Integer n1 = (p1 < v1.length) ? Integer.parseInt(v1[p1]) : 0; // !!!
            Integer n2 = (p2 < v2.length) ? Integer.parseInt(v2[p2]) : 0; // !!!
            if (n1.compareTo(n2) != 0) return n1.compareTo(n2);
            p1++;p2++;
        }

        return 0;
    }
}