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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#828900#9925. LR StringYuey#TL 0ms3600kbC++201.6kb2024-12-23 21:44:132024-12-23 21:44:14

Judging History

你现在查看的是最新测评结果

  • [2024-12-23 21:44:14]
  • 评测
  • 测评结果:TL
  • 用时:0ms
  • 内存:3600kb
  • [2024-12-23 21:44:13]
  • 提交

answer

# include <bits/stdc++.h>
# define imax(a , b) ((a) > (b) ? (a) : (b))
# define imin(a , b) ((a) < (b) ? (a) : (b))
# define rl ro << 1
# define rr ro << 1 | 1
using namespace std;
const int N = 2e5 + 511;
vector<int> e[10];
void solve()
{
    string s;
    cin >> s;
    // for (int i = 1; i <= (1e6 )/ 2; ++i) s += 'R';
    // for (int i = 1; i <= (1e6 )/ 2; ++i) s += 'L';
    int n = s.size();
    s = " " + s;
    for (int i = 0; i < 2; ++i) e[i].clear();
    for (int i = 1; i <= n; ++i){
        if (s[i] == 'L') e[0].push_back(i);
                    else e[1].push_back(i);
    }

    int q;
    cin >> q;
    while (q--){
        string t;
        cin >> t;
        // for (int i = 1; i <= (1e6 )/ 2; ++i) t += 'R';
        // for (int i = 1; i <= (1e6 )/ 2; ++i) t += 'L';
        // t += 'R';
        int m = t.size();
        t = " " + t;
        
        if (t[1] == 'R' && s[1] == 'L') {
            cout << "NO\n";
            return;
        } 

        if (t[m] == 'L' && s[n] == 'R') {
            cout << "NO\n";
            return;
        }

        int la = 0 , F = 0;
        for (int i = 1; i <= m; ++i){
            int fl = 0;
            if (la == n) {F = 1; break; } 
            int pos = (t[i] == 'R');
            auto x = lower_bound(e[pos].begin() , e[pos].end() , la + 1);
            if (x == e[pos].end()) {F = 1; break; } 
            la = *x;
        }

        cout << (F ? "NO" : "YES") << "\n";
 
    }
}
signed main()
{
    std::ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int T = 1;
    cin>>T;
    while (T--) solve();
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3600kb

input:

2
RRLLRRLL
4
LLLLL
LLR
LRLR
R
RLLLLLL
3
LLLLL
RL
RRL

output:

NO
YES
NO
YES
YES
YES
NO

result:

ok 7 lines

Test #2:

score: -100
Time Limit Exceeded

input:

100000
RRLLR
4
R
R
R
R
LRLLL
6
R
L
L
L
L
R
RLLRR
1
L
LRLLL
3
R
L
L
RLRRL
2
LRRRR
RRRL
LRLRR
2
L
R
RRLRL
4
RLRLR
RLLL
LR
RLL
RLRLL
8
R
R
R
L
L
L
R
L
RLLRR
7
R
LL
RL
R
L
L
L
LLRLR
2
L
R
RRRRL
1
RLLLR
RRLLL
2
L
L
RLLRL
1
RLLRL
LRLLL
5
RLRLL
RLLLR
RRRRL
LLRRR
RLLRR
LRLLL
3
RRLL
R
RL
LLRRL
3
L
R
LLLRR
RR...

output:

YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Y...

result: