結果

問題 No.1717 Levi-Civita Triangle
コンテスト
ユーザー vjudge1
提出日時 2025-07-16 17:16:14
言語 C++17(gcc12)
(gcc 12.3.0 + boost 1.87.0)
結果
AC  
実行時間 17 ms / 2,000 ms
コード長 3,095 bytes
コンパイル時間 12,210 ms
コンパイル使用メモリ 273,272 KB
実行使用メモリ 7,936 KB
最終ジャッジ日時 2025-07-16 17:16:31
合計ジャッジ時間 14,414 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge4
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ファイルパターン 結果
sample AC * 3
other AC * 42
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 # 

//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("unroll-loops")

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ull = unsigned long long;
using lll = __int128_t;
using ld = long double;
using pll = pair<ll, ll>;
using vi = vector<ll>;
using vd = vector<ld>;
using vp = vector<pll>;
using vS = vector<string>;
using vvi = vector<vi>;
using vvd = vector<vd>;
using vvp = vector<vp>;
using v3i = vector<vvi>;
using v3d = vector<vvd>;
using v3p = vector<vvp>;
using v4i = vector<v3i>;
using v5i = vector<v4i>;
using v6i = vector<v5i>;
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using namespace atcoder;
using mint = modint998244353;
using Mint = modint1000000007;
using vm = vector<mint>;
using vM = vector<Mint>;
using vvm = vector<vm>;
using vvM = vector<vM>;
using v3m = vector<vvm>;
using v3M = vector<vvM>;
using v4m = vector<v3m>;
using v5m = vector<v4m>;
#endif
template <typename T>
using r_pQ = priority_queue<T, vector<T>, greater<T>>;
#define rrep(i, n) for (ll i = (n)-1; (i) >= 0; --(i))
#define rep(i, n) for (ll i = 0; (i) < (n); ++(i))
#define loop(i, a) for(ll i = a; true; ++(i))
#define reps(i, n) for (ll i = 1; (i) <= (n); ++(i))
#define Rep(i,a,b) for(ll i = (a); i <= (b); i++)
#define all(a) (a).begin(),(a).end()
const ll MOD = 998244353;
const ll Hash = 10000000000000061;
#define Yes(b) ((b)?cout << "Yes" << endl:cout << "No" << endl)
#define YES(b) ((b)?cout << "YES" << endl:cout << "NO" << endl)
#define Aoki(b) ((b)?cout << "Aoki" << endl:cout << "Takahashi" << endl)
#define flush cout << endl; 
#define out(x) cout << (x) << endl
#define vout(v) for(auto x : (v)) cout << x << ' ';
#define vin(v) rep(i, (v).size()) cin >> (v)[i]
#define vin_(v); rep(i, (v).size()) {cin >> (v)[i]; (v)[i]--;}
#define vvin(v, w) rep(i, (v).size()) { rep(k, (w)) { cin >> (v)[i][k]; } }
#define ft first
#define sd second
#define vInP(v) rep(i, (v).size()) cin >> (v)[i].ft >> (v)[i].sd
#define vInP_(v) rep(i, (v).size()) {cin >> (v)[i].ft >> (v)[i].sd; (v)[i].ft--; (v)[i].sd--;}
bool chmin(ll& a, ll b) { return a > b ? a = b, 1 : 0; }
bool chmax(ll& a, ll b) { return a < b ? a = b, 1 : 0; }
vi s90 = { 0, 1, 0, -1 }, c90 = { 1, 0, -1, 0 };
vi s45 = { 0, 1, 1, 1, 0, -1, -1, -1 }, c45 = { 1, 1, 0, -1, -1, -1, 0, 1 };

void solve();

signed main(){
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    cout << fixed << setprecision(20);

    int t = 1;
    // cin >> t;
    rep(i, t) solve();
}

void solve(){
    ll N; cin >> N;
    ll M = N * 2 + 1;
    vector<ll> a(N*2+1);
    rep(i, N*2+1) cin >> a[i];
    reverse(all(a));
    vector<ll> b(M, 0), c(M, 0);
    rep(i, M){
        if(i % 4 == 0){
            b[i] = 1; c[i] = 2;
        }
        if(i % 4 == 2){
            b[i] = 2, c[i] = 1;
        }
    }
    rep(t, 3){
        if(a == b){
            cout << 1 << endl;
            return;
        }
        rep(i, M) b[i] = (b[i]+1) % 3;
    }
    rep(t, 3){
        if(a == c){
            cout << 2 << endl;
            return;
        }
        rep(i, M) c[i] = (c[i]+1) % 3;
    }
    cout << 0 << endl;
}
0