QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #836589 | #9925. LR String | ucup-team1134# | WA | 38ms | 3612kb | C++23 | 2.0kb | 2024-12-29 02:13:52 | 2024-12-29 02:13:52 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return true; } return false; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return true; } return false; }
#define vi vector<int>
#define vl vector<ll>
#define vii vector<pair<int,int>>
#define vll vector<pair<ll,ll>>
#define vvi vector<vector<int>>
#define vvl vector<vector<ll>>
#define vvii vector<vector<pair<int,int>>>
#define vvll vector<vector<pair<ll,ll>>>
#define vst vector<string>
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define mkunique(x) sort(all(x));(x).erase(unique(all(x)),(x).end())
#define fi first
#define se second
#define mp make_pair
#define si(x) int(x.size())
const int mod=998244353,MAX=300005,INF=15<<26;
int main(){
std::ifstream in("text.txt");
std::cin.rdbuf(in.rdbuf());
cin.tie(0);
ios::sync_with_stdio(false);
int Q;cin>>Q;
while(Q--){
string S;cin>>S;
vi A,B;
for(int i=0;i<si(S);i++){
if(S[i]=='L') A.pb(i);
else B.pb(i);
}
int X;cin>>X;
while(X--){
bool ok=true;
string T;cin>>T;
int i=0;
for(char c:T){
if(c=='L'){
auto it=lower_bound(all(A),i);
if(it==A.end()){
ok=false;
break;
}else{
i=*it+1;
}
}else{
auto it=lower_bound(all(B),i);
if(it==B.end()){
ok=false;
break;
}else{
i=*it+1;
}
}
}
if(ok) cout<<"YES\n";
else cout<<"NO\n";
}
}
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3612kb
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
Wrong Answer
time: 38ms
memory: 3564kb
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 YES YES YES YES YES YES YES YES YES YES NO YES YES YES NO NO YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES NO YES YES YES NO NO NO NO NO NO YES YES YES YES NO NO YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES NO YES YES YES N...
result:
wrong answer 5th lines differ - expected: 'NO', found: 'YES'