OR59 字符串中找出连续最长的数字串

OR59 字符串中找出连续最长的数字串

字符串中找出连续最长的数字串_牛客题霸_牛客网 (nowcoder.com)

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import java.util.*;
public class Main {
    public static void main(String[] args){
        Scanner sc=new Scanner(System.in);
        while(sc.hasNext()){
            String str=sc.nextLine();
            String ret="";
            String cur="";
            int i=0;
            for(;i<str.length();i++){
                char c=str.charAt(i);
                if(c>='0'&&c<='9'){
                    cur=cur+c+"";
                }else{
                    if(cur.length()>ret.length()){
                        ret=cur;
                    }
                    cur="";
                }
            }
            if(i==str.length()&&cur.length()>ret.length()){
                ret=cur;
            }
            System.out.println(ret);
        }
    }        
}