ccfcsp201409-3 字符串匹配

#include <bits/stdc++.h>
using namespace std;
string s;
int y, n;
string o[105];
bool check(char a, char b)
{ // 大小写不敏感
    if (a == b || a - 'a' == b - 'A' || a - 'A' == b - 'a')
    {
        return true;
    }
    return false;
}
int main()
{
    cin >> s;
    cin >> y; // 0不敏感1敏感
    cin >> n;
    int k = s.size();
    if (y == 0)
    {
        for (int i = 0; i < n; i++)
        {
            cin >> o[i];
            int len = o[i].size();
            int kk = 0;
            for (int j = 0; j < len; j++)
            {
                if (check(s[kk], o[i][j]))
                {
                    kk++;
                    if (kk == k)
                    {
                        cout << o[i] << endl;
                        break;
                    }
                }
                else
                {
                    kk = 0;
                }
            }
        }
    }
    else if (y == 1)
    {
        for (int i = 0; i < n; i++)
        {
            cin >> o[i];
            int len = o[i].size();
            int kk = 0;
            for (int j = 0; j < len; j++)
            {
 
                if (s[kk] == o[i][j])
                {
                    kk++;
                    if (kk == k)
                    {
                        cout << o[i] << endl;
                        break;
                    }
                }
                else
                {
                    kk = 0;
                }
            }
        }
    }
}