命令行选项

命令行选项
stringstream 

getline記得特殊處理一下數字n到第一行字符串中間的換行

#include <iostream>
#include <string>
#include <cstring>
#include <algorithm>
#include <vector>
#include <sstream>
using namespace std;
int A[27];
bool C[27];
string B[27];
int main()
{
    string s;
    ios::sync_with_stdio(false);
    cin >> s;
    int len = s.length();
    memset(A, 0, sizeof A);
    for (int i = 0; i < len; i++)
    {
        if (i + 1 < len && s[i + 1] == ':')
        {
            A[s[i] - 'a'] = 1;
            i++;
        }
        else
        {
            A[s[i] - 'a'] = 2;
        }
    }
    int n;
    cin >> n;
    getline(cin, s);
    for (int i = 0; i < n; i++)
    {
        //getline(cin,s);
        memset(C, 0, sizeof C);
        getline(cin, s);
        cout << "Case " << i + 1 << ": ";
        stringstream a;
        a << s;
        a >> s;
        while (a >> s)
        {

            if (s.length() == 2 && s[0] == '-' && s[1] >= 'a' && s[1] <= 'z')
            {
                if (A[s[1] - 'a'] == 1)
                {
                    a >> B[s[1] - 'a'];
                }
                else if (!A[s[1] - 'a'])
                    break;
                C[s[1] - 'a'] = 1;
            }
            else
                break;
        }
        for (int i = 0; i < 26; i++)
        {
            if (C[i])
            {
                cout << '-' << char(i + 'a') << ' ';
            }
            if (C[i] && A[i])
            {
                cout << B[i] << ' ';
            }
        }
        cout << '
';
    }
}