結果
問題 | No.261 ぐるぐるぐるぐる!あみだくじ! |
ユーザー | kei |
提出日時 | 2018-09-30 16:03:04 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,485 bytes |
コンパイル時間 | 1,761 ms |
コンパイル使用メモリ | 178,896 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-10-12 09:10:33 |
合計ジャッジ時間 | 3,038 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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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 |
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testcase_00 | WA | - |
testcase_01 | WA | - |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | WA | - |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | WA | - |
testcase_33 | WA | - |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | WA | - |
testcase_38 | WA | - |
testcase_39 | WA | - |
ソースコード
#include "bits/stdc++.h" using namespace std; typedef long long ll; typedef pair<int, int> pii; typedef pair<ll, ll> pll; const int INF = 1e9; const ll LINF = 1e18; template<class S,class T> ostream& operator << (ostream& out,const pair<S,T>& o){ out << "(" << o.first << "," << o.second << ")"; return out; } template<class T> ostream& operator << (ostream& out,const vector<T> V){ for(int i = 0; i < V.size(); i++){ out << V[i]; if(i!=V.size()-1) out << " ";} return out; } template<class T> ostream& operator << (ostream& out,const vector<vector<T> > Mat){ for(int i = 0; i < Mat.size(); i++) { if(i != 0) out << endl; out << Mat[i];} return out; } template<class S,class T> ostream& operator << (ostream& out,const map<S,T> mp){ out << "{ "; for(auto it = mp.begin(); it != mp.end(); it++){ out << it->first << ":" << it->second; if(mp.size()-1 != distance(mp.begin(),it)) out << ", "; } out << " }"; return out; } /* <url:https://yukicoder.me/problems/no/261> 問題文============================================================ ================================================================= 解説============================================================= ================================================================ */ inline ll mod(ll a,ll m){ return (a%m + m)%m;} /* 拡張ユークリッドの互除法 extgcd */ ll extgcd(ll a, ll b, ll& x, ll& y){ ll g = a; x = 1; y = 0; if(b!=0) { g = extgcd(b, a%b, y, x); y -= (a/b)*x;} return g; } /* 中国剰余定理 (Chinese Remainder Theorem) x ≡ b1 (mod. m1) x ≡ b2 (mod. m2) ... x ≡ bk (mod. mk) を満たす x ≡ r (mod. lcm(m1,m2,...,mk)) を求める 答えを x ≡ r (mod. M) として、{r, M} をリターン, 存在しない場合は {0, -1} をリターン */ pll CRT(const vector<ll>& b,const vector<ll>& m){ ll r = 0, M = 1; for(int i = 0; i < (int)b.size();i++){ ll p,q; ll d = extgcd(M,m[i],p,q); if((b[i]-r)%d != 0) return make_pair(0,-1); ll tmp = (b[i]-r)/d*p%(m[i]/d); r += M*tmp; M *= m[i]/d; } return make_pair(mod(r,M), M); } void solve(){ int N; cin >> N; int K; cin >> K; vector<int> amida(N); iota(amida.begin(),amida.end(),0); cout << amida << endl; vector<int> X(K),Y(K); for(int i = 0; i < K;i++){ cin >> X[i] >> Y[i]; X[i]--; Y[i]--; } reverse(X.begin(),X.end()); reverse(Y.begin(),Y.end()); for(int i = 0; i < K;i++){ swap(amida[X[i]],amida[Y[i]]); } vector<vector<int>> ito(N,vector<int>(N,-1)); vector<int> D(N); for(int i = 0; i < N;i++){ vector<int> f(N,0); int now = i; int cnt = 0; while(f[now]==0){ f[now] = 1; ito[i][now] = cnt++; now = amida[now]; } D[i] = cnt; } int Q; cin >> Q; while(Q--){ vector<int> A(N); for(auto& in:A){ cin >> in; in--; } vector<ll> b(N),m(N); bool fail = false; for(int i = 0; i < N;i++){ b[i] = ito[i][A[i]]; m[i] = D[i]; if(b[i]==-1) fail = true; } if(fail){ cout << -1 << endl; continue; } auto p = CRT(b,m); if(p.second==-1){ cout << -1 << endl; continue; } cout << p.second - p.first << endl; } } int main(void) { cin.tie(0); ios_base::sync_with_stdio(false); solve(); return 0; }