2496. Maximum Value of a String in an Array

class Solution {
public:
    int maximumValue(vector<string>& srts) {
        
        int maxi=0;

        for(int i=0; i<srts.size(); i++)
        {
            int n=0;
            for(int j=0; j<srts[i].size(); j++ )
            {
                if(srts[i][j]-'0'>=0 && srts[i][j]-'0'<=9)
                n=n*10+srts[i][j]-'0';
                
                else
                {
                n=srts[i].length();
                break;
                }
            }
            maxi=max(maxi,n);
        }
        return maxi;
    }
};