結果
| 問題 |
No.2986 Permutation Puzzle
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2025-02-03 18:24:24 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 217 ms / 2,000 ms |
| コード長 | 5,016 bytes |
| コンパイル時間 | 7,263 ms |
| コンパイル使用メモリ | 291,352 KB |
| 実行使用メモリ | 5,248 KB |
| 最終ジャッジ日時 | 2025-02-03 18:24:40 |
| 合計ジャッジ時間 | 11,739 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 40 |
ソースコード
#include <bits/stdc++.h>
#include <atcoder/all>
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#define SELECTER(_1,_2,_3,SELECT,...) SELECT
#define rep1(i,n) for(int i=0;i<int(n);++i)
#define rep2(i,a,n) for(int i=int(a);i<int(n);++i)
#define rep(...) SELECTER(__VA_ARGS__,rep2,rep1)(__VA_ARGS__)
#define RSELECTER(_1, _2, _3, RSELECT, ...) RSELECT
#define rrep1(i,n) for(int i=(int)(n)-1;i>=0;--i)
#define rrep2(i,a,n) for(int i=(int)(n)-1;i>=(int)a;--i)
#define rrep(...) RSELECTER(__VA_ARGS__, rrep2, rrep1)(__VA_ARGS__)
#define all(a) a.begin(),a.end()
#define rall(a) a.rbegin(),a.rend()
#define fi first
#define se second
#define PrintR LogOutput
#ifdef _DEBUG
#define Log(...) LogOutput(__VA_ARGS__)
#else
#define Log(...)
#endif
#define M_PI 3.14159265358979323846
using namespace std;
using namespace atcoder;
using ll=long long;
using ld=long double;
using pii=pair<int,int>;
using pll=pair<long long,long long>;
using pdd=pair<long double,long double>;
using tp=tuple<int,int,int>;
using tpll=tuple<ll,ll,ll>;
using veci=vector<int>;
using vecpii=vector<pair<int,int>>;
using vecll=vector<long long>;
using vecpll=vector<pair<long long,long long>>;
using vecpdd=vector<pair<long double,long double>>;
using vecs=vector<string>;
using vecb=vector<bool>;
using vecd=vector<long double>;
using vectp=vector<tp>;
using vectpll=vector<tpll>;
using mint=modint998244353;
using mint10=modint1000000007;
template<typename T, typename S>
istream& operator>>(istream& in, pair<T, S>& a){return in >> a.first >> a.second;}
template<typename T, typename S>
ostream& operator<<(ostream& out, const pair<T, S>& a){return out << a.first << ' ' << a.second;}
ostream& operator<<(ostream& out, const mint& a){return out << a.val();}
ostream& operator<<(ostream& out, const mint10& a){return out << a.val();}
ostream& operator<<(ostream& out, const modint& a){return out << a.val();}
template<typename T>
ostream& operator<<(ostream& out, const vector<T>& d){for(int i = 0 ; i < d.size() ; ++i) out << d[i] << (i == d.size() - 1 ? "" : " "); return out;}
template<typename T, typename S>
pair<T, S> operator+(const pair<T, S>& a, const pair<T, S>& b){return {a.fi + b.fi, a.se + b.se};}
template<typename T, typename S>
pair<T, S> operator-(const pair<T, S>& a, const pair<T, S>& b){return {a.fi - b.fi, a.se - b.se};}
template<class T> inline bool chmax(T& a,T b){if(a<b) {a=b;return true;} return false;}
template<class T> inline bool chmin(T& a,T b){if(a>b) {a=b;return true;} return false;}
bool Judge(int i, int j, int h, int w){return i < 0 || j < 0 || i >= h || j >= w;}
bool PrintA(int i){cout<<(i ? "Yes" : "No")<<endl;return i;}
constexpr ll INF=numeric_limits<ll>::max() >> 2;
constexpr int inf=numeric_limits<int>::max() >> 1;
constexpr ll MOD=998244353;
const int vi[] = {0, 1, 0, -1}, vj[] = {1, 0, -1, 0};
template<typename... Args>
void LogOutput(Args&&... args){
stringstream ss;
((ss << args << ' '), ...);
cout << ss.str().substr(0, ss.str().length() - 1) << endl;
}
template<typename T>
void LogOutput(vector<vector<T>>& data){for(auto d : data) LogOutput(d);}
int main(){
ios::sync_with_stdio(false);
std::cin.tie(nullptr);
int n, k;cin>>n>>k;
vector a(n, veci(n)), b(n, veci(n));
rep(i, n) rep(j, n) cin>>a[i][j], a[i][j]--;
rep(i, n) rep(j, n) cin>>b[i][j], b[i][j]--;
veci r;
auto f = [&](vector<veci>& a, int d){
if(d >= n){
rep(i, n) rep(j, i, n) swap(a[j][i], a[i][j]);
}
auto na = a;
rep(j, n) na[a[d % n][j]] = a[j];
swap(a, na);
if(d >= n){
rep(i, n) rep(j, i, n) swap(a[j][i], a[i][j]);
}
};
auto rec = [&](auto f2, vector<veci> t, int c) -> int{
if(c == k) return t == b;
rep(i, n){
auto d = t;
f(d, i);
if(f2(f2, d, c + 1)){
r.push_back(i);
return 1;
}
}
rep(i, n){
auto d = t;
f(d, i + n);
if(f2(f2, d, c + 1)){
r.push_back(i + n);
return 1;
}
}
return 0;
};
rec(rec, a, 0);
vector<pair<char, int>> ans;
vector p(k, veci(n));
{
auto ta = a;
rrep(i, r.size()){
int d = r[i];
if(d < n) p[i] = a[d % n];
else rep(j, n) p[i][j] = a[j][d % n];
f(a, d);
}
assert(a == b);
swap(a, ta);
}
swap(a, b);
rep(q, r.size()){
int d = r[q];
auto f3 = [&](){
if(d < n){
rep(i, n) if(p[q] == a[i]){
d = i;
break;
}
}else{
rep(j, n){
int u = 1;
rep(i, n) u &= p[q][i] == a[i][j];
if(u){
d = j + n;
break;
}
}
}
};
f3();
veci used(n);
char res = 'R';
if(d >= n){
res = 'C';
rep(i, n) rep(j, i, n) swap(a[j][i], a[i][j]);
}
int l = 1;
rep(i, n) if(!used[i]){
int v = i, cnt = 1;
used[v] = 1;
while(1){
v = a[d % n][v];
if(used[v]) break;
used[v] = 1, cnt++;
}
l = l * cnt / gcd(cnt, l);
}
if(d >= n){
rep(i, n) rep(j, i, n) swap(a[j][i], a[i][j]);
}
rep(i, l - 1){
f(a, d);
ans.emplace_back(res, d % n + 1);
f3();
}
}
assert(a == b);
cout<<ans.size()<<endl;
for(auto v : ans) cout<<v<<endl;
}