#include<bits/stdc++.h>
using namespace std;
#define x first
#define y second
typedef pair<int,int> PII;
typedef long long ll;
typedef unsigned long long ull;
typedef unsigned int uint;
typedef vector<string> VS;
typedef vector<int> VI;
typedef vector<vector<int>> VVI;
vector<int> vx;
inline void divide() {sort(vx.begin(),vx.end());vx.erase(unique(vx.begin(),vx.end()),vx.end());}
inline int mp(int x) {return upper_bound(vx.begin(),vx.end(),x)-vx.begin();}
inline int log_2(int x) {return 31-__builtin_clz(x);}
inline int popcount(int x) {return __builtin_popcount(x);}
inline int lowbit(int x) {return x&-x;}
inline ll Lsqrt(ll x) { ll L = 1,R = 2e9;while(L + 1 < R){ll M = (L+R)/2;if(M*M <= x) L = M;else R = M;}return L;}
// 查找左侧边界的二分查找
int left_bound(const vector<int>& arr, int tar) {
    int lo = 0, hi = arr.size();
    while (lo < hi) {
        int mid = lo + (hi - lo) / 2;
        if (tar > arr[mid]) {  // 使用[]替代get()
            lo = mid + 1;
        } else {
            hi = mid;
        }
    }
    return lo;
}
vector<vector<int>> index(256);
void init(string &t)
{
    for(int i=0;i<256;++i) index[i].clear();
    int n = t.length();
    // 使用vector替代ArrayList
    for (int i = 0; i < n; i++) {
        char c = t[i];  // C++使用[]访问字符串字符
        index[c].push_back(i);  // 使用push_back替代add
    }
}
bool isSubsequence(string &s, string &t) {
    int m = s.length(), n = t.length();
    // 对 t 进行预处理
    // 串 t 上的指针
    int j = 0;
    // 借助 index 查找 s[i]
    for (int i = 0; i < m; i++) {
        char c = s[i];
        // 整个 t 压根儿没有字符 c
        if (index[c].empty()) return false;  // 使用empty()检查vector是否为空
        int pos = left_bound(index[c], j);
        // 二分搜索区间中没有找到字符 c
        if (pos == index[c].size()) return false;
        // 向前移动指针 j
        j = index[c][pos] + 1;  // 使用[]替代get
    }
    return true;
}

void solve()
{
    string s;
    cin>>s;
    init(s);
    int n = s.size();
    bool start = (s[0] == 'L'), end = (s[n-1] == 'R');
    int q;
    cin>>q;
    for(int i=0;i<q;++i)
    {
        string t;
        cin>>t;
        int m = t.size();
        if(start) if(t[0] == 'R') {cout<<"NO\n";continue;}
        if(end) if(t[m-1] == 'L') {cout<<"NO\n";continue;}
        if(isSubsequence(t,s)) cout<<"YES\n";
        else cout<<"NO\n";
    }
}
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    int T = 1;
    cin>>T;
    while(T--)
    {
        solve();
    }
}

answer.code:32:26: error: ‘std::vector<std::vector<int> > index’ redeclared as different kind of entity
   32 | vector<vector<int>> index(256);
      |                          ^
In file included from /usr/include/string.h:432,
                 from /usr/include/c++/13/cstring:42,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:121,
                 from answer.code:1:
/usr/include/strings.h:61:1: note: previous declaration ‘const char* index(const char*, int)’
   61 | index (const char *__s, int __c) __THROW
      | ^~~~~
answer.code: In function ‘void init(std::string&)’:
answer.code:35:33: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript
   35 |     for(int i=0;i<256;++i) index[i].clear();
      |                                 ^
answer.code:40:14: error: invalid types ‘<unresolved overloaded function type>[char]’ for array subscript
   40 |         index[c].push_back(i);  // 使用push_back替代add
      |              ^
answer.code: In function ‘bool isSubsequence(std::string&, std::string&)’:
answer.code:52:18: error: invalid types ‘<unresolved overloaded function type>[char]’ for array subscript
   52 |         if (index[c].empty()) return false;  // 使用empty()检查vector是否为空
      |                  ^
answer.code:53:35: error: invalid types ‘<unresolved overloaded function type>[char]’ for array subscript
   53 |         int pos = left_bound(index[c], j);
      |                                   ^
answer.code:55:25: error: invalid types ‘<unresolved overloaded function type>[char]’ for array subscript
   55 |         if (pos == index[c].size()) return false;
      |                         ^
answer.code:57:18: error: invalid types ‘<unresolved overloaded function type>[char]’ for array subscript
   57 |         j = index[c][pos] + 1;  // 使用[]替代get
      |                  ^