結果
| 問題 | No.3400 Nana's Plus Permutation Game (7 + 7) ÷ 7 |
| コンテスト | |
| ユーザー |
👑 potato167
|
| 提出日時 | 2025-12-07 01:24:49 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.89.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 7,325 bytes |
| 記録 | |
| コンパイル時間 | 1,901 ms |
| コンパイル使用メモリ | 215,980 KB |
| 実行使用メモリ | 26,240 KB |
| 平均クエリ数 | 213.45 |
| 最終ジャッジ日時 | 2025-12-07 01:25:09 |
| 合計ジャッジ時間 | 15,419 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| other | WA * 46 RE * 31 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
using ll=long long;
const ll ILL=2167167167167167167;
const int INF=2100000000;
#define rep(i,a,b) for (int i=(int)(a);i<(int)(b);i++)
#define all(p) p.begin(),p.end()
template<class T> using _pq = priority_queue<T, vector<T>, greater<T>>;
template<class T> int LB(vector<T> &v,T a){return lower_bound(v.begin(),v.end(),a)-v.begin();}
template<class T> int UB(vector<T> &v,T a){return upper_bound(v.begin(),v.end(),a)-v.begin();}
template<class T> bool chmin(T &a,T b){if(b<a){a=b;return 1;}else return 0;}
template<class T> bool chmax(T &a,T b){if(a<b){a=b;return 1;}else return 0;}
template<class T> void So(vector<T> &v) {sort(v.begin(),v.end());}
template<class T> void Sore(vector<T> &v) {sort(v.begin(),v.end(),[](T x,T y){return x>y;});}
bool yneos(bool a,bool upp=false){if(a){cout<<(upp?"YES\n":"Yes\n");}else{cout<<(upp?"NO\n":"No\n");}return a;}
template<class T> void vec_out(vector<T> &p,int ty=0){
if(ty==2){cout<<'{';for(int i=0;i<(int)p.size();i++){if(i){cout<<",";}cout<<'"'<<p[i]<<'"';}cout<<"}\n";}
else{if(ty==1){cout<<p.size()<<"\n";}for(int i=0;i<(int)(p.size());i++){if(i) cout<<" ";cout<<p[i];}cout<<"\n";}}
template<class T> T vec_min(vector<T> &a){assert(!a.empty());T ans=a[0];for(auto &x:a) chmin(ans,x);return ans;}
template<class T> T vec_max(vector<T> &a){assert(!a.empty());T ans=a[0];for(auto &x:a) chmax(ans,x);return ans;}
template<class T> T vec_sum(vector<T> &a){T ans=T(0);for(auto &x:a) ans+=x;return ans;}
int pop_count(long long a){int res=0;while(a){res+=(a&1),a>>=1;}return res;}
template<class T> T square(T a){return a * a;}
//https://ei1333.github.io/library/other/xor-shift.cpp.html
struct XorShift {
private:
constexpr static double R = 1.0 / 0xffffffff;
uint64_t x;
public:
explicit XorShift(uint64_t seed = 88172645463325252ull) : x(seed) {}
template< typename T = uint64_t >
inline T get() { // [0, 2^64)
x ^= x << 7ull;
x ^= x >> 9ull;
return x;
}
inline uint32_t get(uint32_t r) { // [0, r)
return ((uint64_t) get< uint32_t >() * r) >> 32ull;
}
inline uint32_t get(uint32_t l, uint32_t r) { // [l, r)
return l + get(r - l);
}
inline double probability() { // [0.0, 1.0]
return get< uint32_t >() * R;
}
};
XorShift rnd;
namespace po167{
struct UF
{
using _F = int;
int _n;
std::vector<_F> wei;
std::vector<int> q;
int component;
UF(int n):_n(n), wei(n), component(n), par(n){
for (int i = 0; i < n; i++){
wei[i] =1, par[i] = i;
}
}
void intialize(){
for (auto x : q){
wei[root(x)] = 1;
par[x] = x;
wei[x] = 1;
}
component = (int)par.size();
q = {};
}
//根っこを返す
int root(int a){
assert(0 <= a && a < _n);
if (a == par[a]) return a;
return par[a] = root(par[a]);
}
//trueなら1,falseなら0
int same(int a, int b){
assert(0 <= a && a < _n);
assert(0 <= b && b < _n);
if(root(a) == root(b)) return 1;
else return 0;
}
_F size(int a){
return wei[root(a)];
}
//a,bが違う根っこの元なら結合する,結合したらtrueを返す
bool unite(int a,int b){
a = root(a), b = root(b);
if (a == b) return false;
// if (wei[a] < wei[b]) std::swap(a, b);
par[b] = a;
q.push_back(b);
wei[a] += wei[b];
component--;
return true;
}
private:
std::vector<int> par;
};
}
using po167::UF;
template<class T>
void shuffle_vector(vector<T> &p,XorShift &table){
int L=p.size();
for(int i=0;i<L;i++){
int ind=table.get(i,L);
swap(p[ind],p[i]);
}
return ;
}
void solve();
// POP'N ROLL MUSIC / TOMOO
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t = 1;
// cin >> t;
rep(i, 0, t) solve();
}
void solve(){
int N;
cin >> N;
vector<int> order(N);
rep(i, 0, N) order[i] = i;
bool local = true;
vector<int> ans(N), inv(N);
if (local){
rep(i, 0, N) ans[i] = i;
shuffle_vector(ans, rnd);
rep(i, 0, N) inv[ans[i]] = i;
}
int C = 0;
map<pair<int, int>, int> m;
auto ask = [&](int a, int b) -> int {
if (a > b) swap(a, b);
if (m.count({a, b})) return m[{a, b}];
C++;
cout << "1 " << a + 1 << " " << b + 1 << endl;
if (local){
int s = ans[a] + ans[b] + 2;
if (s > N){
m[{a, b}] = -1;
return -1;
}
m[{a, b}] = inv[s - 1];
return inv[s - 1];
}
int res;
cin >> res;
m[{a, b}] = res - 1;
return res - 1;
};
while ((int)order.size() > 2){
if ((int)order.size() == 3){
while (ask(order[0], order[1]) != order[2]){
swap(order[0], order[1]);
swap(order[1], order[2]);
}
order.pop_back();
break;
}
vector<int> safe(N);
for (auto x : order) safe[x] = 1;
while (ask(order[0], order[1]) < 0){
shuffle_vector(order, rnd);
}
UF T(N);
int Z = 0;
rep(j, 1, order.size()){
int tmp = ask(order[0], order[j]);
if (tmp < 0 || safe[tmp] == 0){
Z++;
}
else{
T.unite(order[j], tmp);
}
}
if (Z == 1){
order = {order[0]};
break;
}
vector<int> n_order;
int val = 0;
rep(j, 1, order.size()){
if (T.root(order[j]) != order[j]) continue;
if (chmax(val, T.size(order[j]))) n_order.clear();
if (val == T.size(order[j])) n_order.push_back(order[j]);
}
swap(n_order, order);
}vector<int> roots;
vector<vector<int>> G(N);
rep(i, 0, N){
if (i == order[0]) continue;
auto tmp = ask(i, order[0]);
if (tmp < 0) roots.push_back(i);
else G[tmp].push_back(i);
}
vector<int> p(N);
// vec_out(ans);
// cout << roots.size() << " " << order.size() << endl;
if (roots.size() == 2){
p[order[0]] = 2;
if (ask(roots[0], order[1]) < 0){
swap(roots[0], roots[1]);
}
p[roots[0]] = N - 1;
p[roots[1]] = N;
}
else{
p[order[0]] = 1;
p[roots[0]] = N;
}
for (auto x : roots){
while (!G[x].empty()){
p[G[x][0]] = p[x] - (int)roots.size();
x = G[x][0];
}
}
cout << "2";
for (auto x : p) cout << " " << x;
cout << endl;
if (local){
rep(i, 0, N) ans[i]++;
yneos(ans == p);
cout << C << " / " << 3 * N << endl;
}
}
/*
*
* N = 5
* 2 -> 3 -> 4 -> 5
*
* 1 -> 3 -> 5
* 4
*
* 1 -> 4
* 2 -> 5
*
* 1 -> 5
* 2
* 3
*
* 1
* 2
* 3
* 4
*
* N = 6
* 1 -> 3 -> 5
* 4 -> 6
*
* 1 -> 4
* 2 -> 5
* 6
*
* 1 -> 5
* 2 -> 6
* 3
*
*
*/
potato167