题解 | 在字符串中找出连续最长的数字串

#include <iostream>
#include <vector>
using namespace std;

int main() {
    string str;
    vector<string> arr;
    while (cin >> str) {
        string tmp = "";
        int maxLen = 0;
        for (char c : str) {

            if (isdigit(c)) {
                tmp += c;
            } else {
                if (tmp.size() > 0) {
                    maxLen = tmp.size() > maxLen ? tmp.size() : maxLen;
                    arr.push_back(tmp);
                }

                tmp.clear();
            }

        }

        if (tmp.size() > 0) {
            maxLen = tmp.size() > maxLen ? tmp.size() : maxLen;
            arr.push_back(tmp);
        }

        for (auto s : arr) {
            if (s.size() == maxLen)
                cout << s;
        }


        cout << "," << maxLen << endl;

    }

}