题解 | 配置文件恢复

#include<iostream>
#include<algorithm>
#include<vector>
using namespace std;
int main() {
    string str;
    string sigle = "reset";
    vector<vector<string>> tp1{{"reset", "board", "board fault"}, {"board", "add", "where to add"},
        {"board", "delete", "no board at all"}, {"reboot", "backplane", "impossible"},
        {"backplane", "abort", "install first"}};
    while (getline(cin, str)) {
        int n = count(str.begin(), str.end(), ' ');
        if (n == 0) {
            if (sigle.find(str) == 0) {
                cout << "reset what" << endl;
            } else {
                cout << "unknown command" << endl;
            }
        } else {
            int l = str.find(' ');
            string str1 = str.substr(0, l);
            string str2 = str.substr(l + 1, str.length() - l - 1);
            int count = 0;
            string ans;
            for (int i = 0 ; i < 5; i ++ ) {
                if (tp1[i][0].find(str1) == 0 && tp1[i][1].find(str2) == 0) {
                    count ++ ;
                    ans = tp1[i][2];
                }
            }
            if (count == 1) {
                cout << ans << endl;
            } else {
                cout << "unknown command" << endl;
            }
        }
    }
    return 0;
}