結果
問題 | No.440 2次元チワワ問題 |
ユーザー |
|
提出日時 | 2022-09-03 15:27:15 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 4,885 bytes |
コンパイル時間 | 3,380 ms |
コンパイル使用メモリ | 223,240 KB |
最終ジャッジ日時 | 2025-02-07 02:22:02 |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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ファイルパターン | 結果 |
---|---|
other | AC * 21 TLE * 5 |
ソースコード
#include<bits/stdc++.h>using namespace std;#pragma GCC optimize("O3")#pragma GCC optimize("unroll-loops")#define rep(i,n) for(ll i=0;i<n;i++)#define repl(i,l,r) for(ll i=(l);i<(r);i++)#define per(i,n) for(ll i=(n)-1;i>=0;i--)#define perl(i,r,l) for(ll i=r-1;i>=l;i--)#define fi first#define se second#define pb push_back#define ins insert#define pqueue(x) priority_queue<x,vector<x>,greater<x>>#define all(x) (x).begin(),(x).end()#define CST(x) cout<<fixed<<setprecision(x)#define vtpl(x,y,z) vector<tuple<x,y,z>>#define rev(x) reverse(x);using ll=long long;using vl=vector<ll>;using vvl=vector<vector<ll>>;using pl=pair<ll,ll>;using vpl=vector<pl>;using vvpl=vector<vpl>;const ll MOD=1000000007;const ll MOD9=998244353;const int inf=1e9+10;const ll INF=4e18;const ll dy[9]={0,1,0,-1,1,1,-1,-1,0};const ll dx[9]={1,0,-1,0,1,-1,1,-1,0};template<class T> inline bool chmin(T& a, T b) {if (a > b) {a = b;return true;}return false;}template<class T> inline bool chmax(T& a, T b) {if (a < b) {a = b;return true;}return false;}//0-indexed,2冪のセグメントツリーtemplate <class T>struct SegTree {private:int n;// 葉の数vector<T> data;// データを格納するvectorT def; // 初期値かつ単位元function<T(T, T)> operation; // 区間クエリで使う処理function<T(T, T)> change;// 点更新で使う処理T find(int a, int b) {T val_left = def, val_right = def;for (a += (n - 1), b += (n - 1); a < b; a >>= 1, b >>= 1){if ((a & 1) == 0){val_left = operation(val_left, data[a]);}if ((b & 1) == 0){val_right = operation(data[--b],val_right);}}return operation(val_left, val_right);}public:// _n:必要サイズ, _def:初期値かつ単位元, _operation:クエリ関数,// _change:更新関数SegTree(size_t _n, T _def, function<T(T, T)> _operation,function<T(T, T)> _change=[](T a,T b){return b;}): def(_def), operation(_operation), change(_change) {n = 1;while (n < _n) {n *= 2;}data = vector<T>(2 * n - 1, def);}void set(int i, T x) { data[i + n - 1] = x; }void build() {for (int k=n-2;k>=0;k--) data[k] = operation(data[2*k+1],data[2*k+2]);}// 場所i(0-indexed)の値をxで更新void update(int i, T x) {i += n - 1;data[i] = change(data[i], x);while (i > 0) {i = (i - 1) / 2;data[i] = operation(data[i * 2 + 1], data[i * 2 + 2]);}}T all_prod(){return data[0];}// [a, b)の区間クエリを実行T query(int a, int b) {//return _query(a, b, 0, 0, n);return find(a,b);}// 添字でアクセスT operator[](int i) {return data[i + n - 1];}};int main(){ios::sync_with_stdio(false);std::cin.tie(nullptr);vvl ex(4,vl(4));rep(i,4)ex[i][i]=1;vvl C=ex;C[0][1]++;vvl W=ex;W[1][2]++;W[2][3]++;vvl invC=ex;invC[0][1]=-1;vvl invW=ex;invW[1][2]--;invW[2][3]--;invW[1][3]++;auto fx=[](vvl a,vvl b){vvl mat(4,vl(4));rep(i,4){rep(k,4){rep(j,4){mat[i][j]+=a[i][k]*b[k][j];}}}return mat;};/*ll h,w;cin >> h >> w;vector<string> g(h);rep(i,h){rep(j,w){if(j&1)g[i]+='c';else g[i]+='w';}}ll q;cin >> q;vvl pls(q,vl(4));rep(i,q){rep(j,4){if(j>=2)pls[i][j]=w-1;else pls[i][j]=0;}}*/ll h,w;cin >> h >> w;vector<string> g(h);rep(i,h)cin >> g[i];ll q;cin >> q;vvl pls(q,vl(4));rep(i,q){rep(j,4)cin >>pls[i][j],pls[i][j]--;}vl ans(q);auto calc=[&](){rep(i,h){vector<vvl> dp(w+1);dp[0]=ex;rep(j,w){if(g[i][j]=='c')dp[j+1]=fx(dp[j],C);else dp[j+1]=fx(dp[j],W);}vector<vvl> ndp(w+1);ndp[0]=ex;rep(j,w){if(g[i][j]=='c')ndp[j+1]=fx(invC,ndp[j]);else ndp[j+1]=fx(invW,ndp[j]);}rep(j,q){if(pls[j][0]<=i&&i<=pls[j][2]){ans[j]+=fx(ndp[pls[j][1]],dp[pls[j][3]+1])[0][3];}}}};calc();rep(i,h)rev(all(g[i]));rep(i,q){tie(pls[i][1],pls[i][3])=make_pair(w-pls[i][3]-1,w-pls[i][1]-1);}calc();{vector<string> ng(w);rep(i,h)rep(j,w){ng[j]+=g[i][j];}swap(h,w);swap(g,ng);rep(i,q){swap(pls[i][0],pls[i][1]);swap(pls[i][2],pls[i][3]);}}calc();rep(i,h)rev(all(g[i]));rep(i,q){tie(pls[i][1],pls[i][3])=make_pair(w-pls[i][3]-1,w-pls[i][1]-1);}calc();rep(i,q)cout << ans[i] << endl;}