题目描述
读入一个字符串str,输出字符串str中的连续最长的数字串
#include<iostream>
#include<string>
using namespace std;
int main()
{
string str,cur,ret;
cin >> str;
for(int i = 0; i<= str.length();i++)
{
if(str[i] >= '0' && str[i] <= '9')
cur += str[i];
else
{
if(ret.length()< cur.length())
ret = cur;
else
cur.clear();
}
}
cout << ret <<endl;
}