Day 035-Compare Version Numbers

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


// 165. Compare Version Numbers


class Solution {
    public int compareVersion(String v1, String v2) {
          int s=0,e=0;
        int i=0,j=0;
        
        while(e<v1.length() || j<v2.length())
        {
            int val1=0,val2=0;
            if(e<v1.length()){
            while(e<v1.length() && v1.charAt(e)!='.')e++;
                if(s<e)
            val1 = Integer.parseInt(v1.substring(s,e));
                s=e+1;
            }
            if(j<v2.length()){
            while(j<v2.length()&&v2.charAt(j)!='.')j++;
                if(i<j)                                  
            val2 = Integer.parseInt(v2.substring(i,j));
                i=j+1;
            }
            
            if(val1<val2)
                return -1;
            
            if(val1>val2)
                return 1;
            
            e++;
            j++;
        }
        return 0;
    }
}


With SLIPTING WAY


lass Solution {
      public int compareVersion(String version1, String version2) {
        String []arr1= version1.split("\\.");
        String []arr2= version2.split("\\.");
        int max=Math.max(arr1.length, arr2.length);
        for(int i=0;i<max;i++){
            int num1= i >= arr1.length  ? 0 : Integer.parseInt(arr1[i]);
            int num2= i >= arr2.length  ? 0 : Integer.parseInt(arr2[i]);
            if(num1>num2){
                return 1;
            }
            if(num1<num2){
                return -1;
            }
        }
        return 0;
    }
}