結果
| 問題 |
No.3131 Twin Slide Puzzles
|
| コンテスト | |
| ユーザー |
hint908
|
| 提出日時 | 2025-04-25 22:44:48 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 243 ms / 4,000 ms |
| コード長 | 4,561 bytes |
| コンパイル時間 | 4,488 ms |
| コンパイル使用メモリ | 292,724 KB |
| 実行使用メモリ | 31,872 KB |
| 最終ジャッジ日時 | 2025-06-20 02:47:27 |
| 合計ジャッジ時間 | 18,041 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 59 |
コンパイルメッセージ
main.cpp: In function ‘void solve()’:
main.cpp:88:16: warning: ‘pos’ may be used uninitialized [-Wmaybe-uninitialized]
88 | ll pos;
| ^~~
ソースコード
// #pragma GCC target("avx2")
// #pragma GCC optimize("O3")
// #pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>
using namespace std;
using uint = unsigned int;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
template<class T> using V = vector<T>;
template<class T> using VV = V<V<T>>;
template<class T> using VVV = V<VV<T>>;
template<class T> using VVVV = VV<VV<T>>;
#define rep(i,n) for(ll i=0ll;(i)<(n);(i)++)
#define REP(i,a,n) for(ll i=(a);(i)<(n);(i)++)
#define rrep(i,n) for(ll i=(n)-1;(i)>=(0ll);(i)--)
#define RREP(i,a,n) for(ll i=(n)-1;(i)>=(a);(i)--)
const long long INF = (1LL << 60);
const long long mod99 = 998244353;
const long long mod107 = 1000000007;
const long long mod = mod99;
#define eb emplace_back
#define be(v) (v).begin(),(v).end()
#define all(v) (v).begin(),(v).end()
#define foa(i,v) for(auto& (i) : (v))
#define UQ(v) sort(be(v)), (v).erase(unique(be(v)), (v).end())
#define UQ2(v,cmp) sort(be(v)), (v).erase(unique(be(v),cmp), (v).end())
#define UQ3(v,cmp) sort(be(v),cmp), (v).erase(unique(be(v)), (v).end())
#define UQ4(v,cmp,cmp2) sort(be(v), cmp), (v).erase(unique(be(v),cmp2), (v).end())
#define LB(x,v) (lower_bound(be(v),(x))-(v).begin())
#define LB2(x,v,cmp) (lower_bound(be(v),(x),(cmp))-(v).begin())
#define UB(x,v) (upper_bound(be(v),(x))-(v).begin())
#define UB2(x,v,cmp) (upper_bound(be(v),(x),(cmp))-(v).begin())
#define dout() cout << fixed << setprecision(20)
#define randinit() srand((unsigned)time(NULL))
template<class T, class U> bool chmin(T& t, const U& u) { if (t > u){ t = u; return 1;} return 0; }
template<class T, class U> bool chmax(T& t, const U& u) { if (t < u){ t = u; return 1;} return 0; }
ll Rnd(ll L=0, ll R=mod99){return rand()%(R-L)+L;}
struct BIT {
vector<ll> a;
BIT(ll n) : a(n + 1) {}
void add(ll i, ll x) { // A[i] += x
i++;
while(i < size(a)) {
a[i] += x;
i += i & -i;
}
}
ll sum(ll r) {
ll s = 0;
while(r) {
s += a[r];
r -= r & -r;
}
return s;
}
ll sum(ll l, ll r) { // sum of A[l, r)
return sum(r) - sum(l);
}
};
void solve(){
ll n;
cin >> n;
V<ll> m(n*n);
rep(i,n*n) m[i] = Rnd(0, mod);
rep(i,n*n) cin >> m[i];
V<ll> v;
ll L = min(15ll, n*n);
auto score = [&]() -> ll {
ll ret = 0;
rep(i, L) ret += v[i] * m[i];
return ret;
};
if(n <= 3){
rep(i,n*n) v.eb(i);
map<ll, V<ll>> mp;
do{
ll pos;
rep(i, n) rep(j, n) if(v[i*n + j] == 0){
pos = (i+j)%2;
break;
}
BIT bit(n*n);
for(auto x:v){
pos += bit.sum(x, n*n);
bit.add(x, 1);
}
pos %= 2;
if(pos) continue;
// if(v[0]*v[1]) swap(v[0], v[1]);
// else swap(v[n-1], v[n-2]);
// }
ll sc = score();
if(!mp.count(sc) or mp[sc] == v){
mp[sc] = v;
continue;
}
cout << "Yes" << endl;
auto w = mp[sc];
rep(i, n) rep(j,n) cout << v[i*n+j] << " \n"[j==n-1];
rep(i, n) rep(j,n) cout << w[i*n+j] << " \n"[j==n-1];
return;
}while(next_permutation(be(v)));
cout << "No" << endl;
return;
}
L = 15;
rep(i, L) v.eb(n*n-i-1);
auto vec_shuffle = [&](){
rep(i, L-1) swap(v[i], v[Rnd(i, L)]);
};
ll p = n*(n-1)/2;
if(p%2) swap(v[0], v[1]);
map<ll, V<ll>> mp;
ll sc = score();
mp[sc] = v;
rep(_, 2000000){
vec_shuffle();
ll pos = (n*n-L)*(n*n-L-1)/2 + L*(n*n-L);
BIT bit(L);
rep(i, L){
ll x = v[i] - (n*n-L);
pos += bit.sum(x, L);
bit.add(x, 1);
}
pos %= 2;
if(pos) swap(v[0], v[1]);
ll sc = score();
if(!mp.count(sc) or mp[sc] == v){
mp[sc] = v;
continue;
}
cout << "Yes" << endl;
V<ll> w = mp[sc];
REP(i, L, n*n){
w.eb(n*n-i-1);
v.eb(n*n-i-1);
}
rep(i, n) rep(j,n) cout << v[i*n+j] << " \n"[j==n-1];
rep(i, n) rep(j,n) cout << w[i*n+j] << " \n"[j==n-1];
return;
}
cout << "No" << endl;
}
int main(){
cin.tie(nullptr);
ios::sync_with_stdio(false);
int t=1;
// cin >> t;
rep(i,t) solve();
}
hint908