题目描述

字符串最大跨距

C++ 代码

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

int main() {
    string s, s1, s2;

    getline(cin, s, ',');
    getline(cin, s1, ',');

    cin >> s2;
    size_t l = s.find(s1);
    size_t r = s.rfind(s2);

    if (l == string::npos || r == string::npos) {
        cout << "-1" << endl;
    } else {
        l += s1.length() - 1;
        if (l >= r) {
            cout << "-1" << endl;
        } else {
            cout << r - l - 1 << endl;
        }
    }
    return 0;
}