Submission #7517580


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#include <bits/stdc++.h>
using namespace std;
#define int long long
#define stoi stoll
using pii=pair<int,int>;
using vi = vector<int>;
using vvi = vector<vi>;
#define all(c) begin(c),end(c)
#define rall(c) rbegin(c),rend(c)
#define fore(x,c) for(auto &&x:c)
#define rep(i,a,n) for(int i=a,i##len=(int)(n);i<i##len;++i)
#define rrep(i, a, n) for(int i=(int)(n-1);i>=a;--i)
#define sz(c) ((int)c.size())
#define contains(c,x) (c.find(x)!=end(c))
#define inseg(l,x,r) ((l)<=(x)&&(x)<(r))
#define dump(...)
#define pb push_back
#define _ 0
const signed INF_=1001001001; const long long INF=1001001001001001001LL;
const int DX[9]={0,1,0,-1,1,1,-1,-1,0},DY[9]={-1,0,1,0,-1,1,1,-1,0};
template<class T> ostream& operator<<(ostream &os,const vector<T> &v) {
    for (auto i = begin(v); i != end(v); i++) os<<*i<<(i==end(v)-1?"":" ");return os;}
template<class T> istream& operator>>(istream &is,vector<T> &v) {
    for (auto i = begin(v); i != end(v); i++) is>>*i;return is;}
template<class T,class U> istream& operator>>(istream &is, pair<T,U> &p) {
    is>>p.first>>p.second;return is;}
template<class T, class U> bool chmax(T &a,const U &b){return a<b?a=b,1:0;}
template<class T, class U> bool chmin(T &a,const U &b){return a>b?a=b,1:0;}
template <class T> void psum(T& c) {partial_sum(begin(c), end(c), begin(c));}
template<class T> using heap=priority_queue<T,vector<T>,greater<T>>;
struct before_main_function {
    before_main_function() {
        cin.tie(nullptr); ios::sync_with_stdio(0);
        cout << setprecision(15) << fixed;
        // #define endl "\n"
    }
} before_main_function;
//------------------8<------------------------------------8<--------------------

signed main() {
    set<char> L = {'L', 'U', 'D'};
    set<char> R = {'R', 'U', 'D'};
    string s;
    cin >> s;
    bool ng = false;
    rep(i, 0, sz(s)) {
        if (i % 2) {
            if (!contains(L, s[i])) ng = true;
        } else {
            if (!contains(R, s[i])) ng = true;
        }
    }
    cout << (ng ? "No" : "Yes") << endl;
    return (0^_^0);
}

Submission Info

Submission Time
Task B - Tap Dance
User algon
Language C++14 (GCC 5.4.1)
Score 200
Code Size 2045 Byte
Status AC
Exec Time 1 ms
Memory 256 KB

Judge Result

Set Name Sample Subtask1
Score / Max Score 0 / 0 200 / 200
Status
AC × 5
AC × 20
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt, sample_04.txt, sample_05.txt
Subtask1 sample_01.txt, sample_02.txt, sample_03.txt, sample_04.txt, sample_05.txt, sub1_01.txt, sub1_02.txt, sub1_03.txt, sub1_04.txt, sub1_05.txt, sub1_06.txt, sub1_07.txt, sub1_08.txt, sub1_09.txt, sub1_10.txt, sub1_11.txt, sub1_12.txt, sub1_13.txt, sub1_14.txt, sub1_15.txt
Case Name Status Exec Time Memory
sample_01.txt AC 1 ms 256 KB
sample_02.txt AC 1 ms 256 KB
sample_03.txt AC 1 ms 256 KB
sample_04.txt AC 1 ms 256 KB
sample_05.txt AC 1 ms 256 KB
sub1_01.txt AC 1 ms 256 KB
sub1_02.txt AC 1 ms 256 KB
sub1_03.txt AC 1 ms 256 KB
sub1_04.txt AC 1 ms 256 KB
sub1_05.txt AC 1 ms 256 KB
sub1_06.txt AC 1 ms 256 KB
sub1_07.txt AC 1 ms 256 KB
sub1_08.txt AC 1 ms 256 KB
sub1_09.txt AC 1 ms 256 KB
sub1_10.txt AC 1 ms 256 KB
sub1_11.txt AC 1 ms 256 KB
sub1_12.txt AC 1 ms 256 KB
sub1_13.txt AC 1 ms 256 KB
sub1_14.txt AC 1 ms 256 KB
sub1_15.txt AC 1 ms 256 KB