結果

問題 No.2658 L-R Nim
ユーザー woodywoodywoodywoody
提出日時 2024-03-03 00:28:33
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 6,163 ms / 7,000 ms
コード長 5,665 bytes
コンパイル時間 4,222 ms
コンパイル使用メモリ 238,988 KB
実行使用メモリ 10,000 KB
最終ジャッジ日時 2024-09-29 16:36:23
合計ジャッジ時間 119,500 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge4
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 4 ms
7,300 KB
testcase_01 AC 4 ms
7,424 KB
testcase_02 AC 4 ms
7,280 KB
testcase_03 AC 4 ms
7,372 KB
testcase_04 AC 3 ms
7,296 KB
testcase_05 AC 13 ms
7,680 KB
testcase_06 AC 74 ms
7,680 KB
testcase_07 AC 15 ms
7,860 KB
testcase_08 AC 118 ms
7,752 KB
testcase_09 AC 96 ms
7,808 KB
testcase_10 AC 114 ms
7,808 KB
testcase_11 AC 29 ms
7,808 KB
testcase_12 AC 91 ms
7,680 KB
testcase_13 AC 106 ms
7,680 KB
testcase_14 AC 76 ms
7,708 KB
testcase_15 AC 128 ms
7,796 KB
testcase_16 AC 53 ms
7,808 KB
testcase_17 AC 92 ms
7,752 KB
testcase_18 AC 57 ms
7,896 KB
testcase_19 AC 97 ms
7,848 KB
testcase_20 AC 27 ms
7,688 KB
testcase_21 AC 114 ms
7,744 KB
testcase_22 AC 124 ms
7,816 KB
testcase_23 AC 133 ms
7,744 KB
testcase_24 AC 62 ms
7,792 KB
testcase_25 AC 3,057 ms
10,000 KB
testcase_26 AC 3,387 ms
9,968 KB
testcase_27 AC 2,479 ms
9,824 KB
testcase_28 AC 3,180 ms
9,824 KB
testcase_29 AC 151 ms
9,840 KB
testcase_30 AC 87 ms
9,756 KB
testcase_31 AC 5,849 ms
9,880 KB
testcase_32 AC 5,813 ms
9,824 KB
testcase_33 AC 1,097 ms
8,864 KB
testcase_34 AC 2,744 ms
8,656 KB
testcase_35 AC 1,027 ms
8,932 KB
testcase_36 AC 2,907 ms
9,996 KB
testcase_37 AC 19 ms
9,156 KB
testcase_38 AC 5,985 ms
9,912 KB
testcase_39 AC 5,989 ms
9,880 KB
testcase_40 AC 6,032 ms
9,848 KB
testcase_41 AC 6,024 ms
9,920 KB
testcase_42 AC 6,030 ms
9,912 KB
testcase_43 AC 6,072 ms
9,888 KB
testcase_44 AC 6,053 ms
10,000 KB
testcase_45 AC 5,927 ms
9,960 KB
testcase_46 AC 6,031 ms
9,924 KB
testcase_47 AC 6,005 ms
9,816 KB
testcase_48 AC 2,728 ms
9,864 KB
testcase_49 AC 87 ms
9,828 KB
testcase_50 AC 5,910 ms
9,984 KB
testcase_51 AC 6,163 ms
9,912 KB
testcase_52 AC 5,863 ms
9,932 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

#include<bits/stdc++.h>
#include<atcoder/all>
#define rep(i,b) for(int i=0;i<b;i++)
#define rrep(i,b) for(int i=b-1;i>=0;i--)
#define rep1(i,b) for(int i=1;i<b;i++)
#define repx(i,x,b) for(int i=x;i<b;i++)
#define rrepx(i,x,b) for(int i=b-1;i>=x;i--)
#define fore(i,a) for(auto& i:a)
#define rng(x) (x).begin(), (x).end()
#define rrng(x) (x).rbegin(), (x).rend()
#define sz(x) ((int)(x).size())
#define pb push_back
#define fi first
#define se second
#define pcnt __builtin_popcountll

using namespace std;
using namespace atcoder;

using ll = long long;
using ld = long double;
template<typename T> using mpq = priority_queue<T, vector<T>, greater<T>>;
template<typename T> bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<typename T> bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
template<typename T> ll sumv(const vector<T>&a){ll res(0);for(auto&&x:a)res+=x;return res;}
bool yn(bool a) { if(a) {cout << "Yes" << endl; return true;} else {cout << "No" << endl; return false;}}
#define retval(x) {cout << #x << endl; return;}
#define cout2(x,y) cout << x << " " << y << endl;
#define coutp(p) cout << p.fi << " " << p.se << endl;
#define out cout << ans << endl;
#define outd cout << fixed << setprecision(20) << ans << endl;
#define outm cout << ans.val() << endl;
#define outv fore(yans , ans) cout << yans << "\n";
#define outdv fore(yans , ans) cout << yans.val() << "\n";
#define assertmle(x) if (!(x)) {vi v(3e8);}
#define asserttle(x) if (!(x)) {while(1){}}
#define coutv(v) {fore(vy , v) {cout << vy << " ";} cout << endl;}
#define coutv2(v) fore(vy , v) cout << vy << "\n";
#define coutvm(v) {fore(vy , v) {cout << vy.val() << " ";} cout << endl;}
#define coutvm2(v) fore(vy , v) cout << vy.val() << "\n";
using pll = pair<ll,ll>;using pil = pair<int,ll>;using pli = pair<ll,int>;using pii = pair<int,int>;using pdd = pair<ld,ld>;
using vi = vector<int>;using vd = vector<ld>;using vl = vector<ll>;using vs = vector<string>;using vb = vector<bool>;
using vpii = vector<pii>;using vpli = vector<pli>;using vpll = vector<pll>;using vpil = vector<pil>;
using vvi = vector<vector<int>>;using vvl = vector<vector<ll>>;using vvs = vector<vector<string>>;using vvb = vector<vector<bool>>;
using vvpii = vector<vector<pii>>;using vvpli = vector<vector<pli>>;using vvpll = vector<vpll>;using vvpil = vector<vpil>;
using mint = modint998244353;
//using mint = modint1000000007;
//using mint = dynamic_modint<0>;
using vm = vector<mint>;
using vvm = vector<vector<mint>>;
vector<int> dx={1,0,-1,0,1,1,-1,-1},dy={0,1,0,-1,1,-1,1,-1};
ll gcd(ll a, ll b) { return a?gcd(b%a,a):b;}
ll lcm(ll a, ll b) { return a/gcd(a,b)*b;}
#define yes {cout <<"Yes"<<endl;}
#define no {cout <<"No"<<endl;}
const double eps = 1e-10;
const ll LINF = 1001002003004005006ll;
const int INF = 1001001001;
#ifdef MY_LOCAL_DEBUG
#include "./debug/localDebug.cpp"
#define showp(p) cerr<<#p<<" = "<<p.fi<<" : "<<p.se<<endl
#define show1(a) cerr<<#a<<" = "<<a<<endl
#define show2(a,b) cerr<<#a<<" = "<<a<<" : "<<#b<<" = "<<b<<endl
#define show3(a,b,c) cerr<<#a<<" = "<<a<<" : "<<#b<<" = "<<b<<" : "<<#c<<" = "<<c<<endl
#define show4(a,b,c,d) cerr<<#a<<" = "<<a<<" : "<<#b<<" = "<<b<<" : "<<#c<<" = "<<c<<" : "<<#d<<" = "<<d<<endl
#define show5(a,b,c,d,e) cerr<<#a<<" = "<<a<<" : "<<#b<<" = "<<b<<" : "<<#c<<" = "<<c<<" : "<<#d<<" = "<<d<<" : "<<#e<<" = "<<e<<endl
#define DEBUG_LINE cout << "DEBUG_LINE : " << __LINE__ << endl
#define showv(v) {cout<<#v<<" : "; fore(vy , v) {cout << vy << " ";} cout << endl;}
#define showv2(v) {cout<<#v<<endl; fore(vy , v) cout << vy << "\n";}
#define showvm(v) {cout<<#v<<" : "; fore(vy , v) {cout << vy.val() << " ";} cout << endl;}
#define showvm2(v) {cout<<#v<<endl; fore(vy , v) cout << vy.val() << "\n";}
#define showmat(v) {cout<<#v<<endl; fore(row , v) { fore(seg , row) cout << seg << " "; cout << endl;}}
#define showmatm(v) {cout<<#v<<endl; fore(row , v) { fore(seg , row) cout << seg.val() << " "; cout << endl;}}
#else
#define showp(p)
#define show1(a)
#define show2(a,b)
#define show3(a,b,c)
#define show4(a,b,c,d)
#define show5(a,b,c,d,e)
#define DEBUG_LINE
#define showv(v)
#define showv2(v)
#define showvm(v)
#define showvm2(v)
#define showmat(v)
#define showmatm(v)
#endif
#define overload5(a,b,c,d,e,f, ...) f
#define show(...) overload5(__VA_ARGS__, show5, show4, show3, show2, show1)(__VA_ARGS__)

void solve(){
    int n,k; cin>>n>>k;
    vi a(n);
    rep(i,n) cin>>a[i];
    
    map<int,int> mp;
    int lmx = -1;
    int rmn = INF;
    mp[0] = 0;
    int s = 0;
    rep(i,n){
        s ^= a[i];
        if (mp.count(s)){
            chmax(lmx, mp[s]);
            chmin(rmn, i);
        }
        mp[s] = i+1;
    }

    const int  cmx = 1 << 20;

    vi cnt(cmx);
    s = 0;
    rep(i,n){
        s ^= a[i];
        cnt[s]++;
    }

    auto upd = [&](int i)->void{
        int s = 0;
        rrep(j,i+1){
            s ^= a[j];
            cnt[s]--;
        }
        s = 0;
        repx(j,i+1,n){
            s ^= a[j];
            cnt[s]++;
        }
    };
    bool ok = false;
    rep(i,n){
        if (i < lmx){
            upd(i);
            continue;
        }
        if (i > rmn) break;
        auto isOk = [&](int x)->bool{
            if (x <= 0) return false;
            int t = a[i] ^ x;
            return (cnt[t]==0);
        };
        rep(j,k+1){
            if (isOk(a[i]+j)) ok = true;
            if (isOk(a[i]-j)) ok = true;
        }
        if (ok) break;
        upd(i);
    }
    yn(ok);

    return;
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);

    int t = 1;
    //cin>>t;

    rep(i,t){
        solve();
    }

    return 0;
}
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