結果

問題 No.426 往復漸化式
コンテスト
ユーザー pekempey
提出日時 2016-09-23 02:19:43
言語 C++11（廃止可能性あり）
(gcc 13.3.0)
結果
AC  
実行時間 767 ms / 5,000 ms
コード長 3,744 bytes
コンパイル時間 1,965 ms
コンパイル使用メモリ 175,260 KB
実行使用メモリ 132,816 KB
最終ジャッジ日時 2024-11-17 15:55:43
合計ジャッジ時間 16,317 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge1
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ファイルパターン 結果
sample AC * 1
other AC * 22
権限があれば一括ダウンロードができます
コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:135:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  135 |                 scanf("%d", &tmp);
      |                 ~~~~~^~~~~~~~~~~~
main.cpp:140:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  140 |                 scanf("%d", &tmp);
      |                 ~~~~~^~~~~~~~~~~~
main.cpp:155:30: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  155 |                         scanf("%d", &k);
      |                         ~~~~~^~~~~~~~~~
main.cpp:160:46: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  160 |                                         scanf("%d", &x);
      |                                         ~~~~~^~~~~~~~~~
main.cpp:167:30: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  167 |                         scanf("%d", &k);
      |                         ~~~~~^~~~~~~~~~
main.cpp:172:46: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  172 |                                         scanf("%d", &x);
      |                                         ~~~~~^~~~~~~~~~
main.cpp:179:30: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  179 |                         scanf("%d", &k);
      |                         ~~~~~^~~~~~~~~~
main.cpp:189:30: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  189 |

ソースコード

diff # 

#include <bits/stdc++.h>
using namespace std;

const long long mod = 1e9 + 7;

struct Matrix {
	vector<vector<long long>> a;

	Matrix() {}

	Matrix(int h, int w) : a(h, vector<long long>(w)) {}

	Matrix(vector<vector<long long>> a) : a(a) {}

	static Matrix I(int n) {
		Matrix res(n, n);
		for (int i = 0; i < n; i++) res[i][i] = 1;
		return res;
	}

	Matrix operator+(const Matrix &b) const {
		Matrix s(a.size(), a[0].size());
		for (int i = 0; i < a.size(); i++) {
			for (int j = 0; j < a[0].size(); j++) {
				s.a[i][j] = a[i][j] + b.a[i][j];
				if (s.a[i][j] >= mod) s.a[i][j] -= mod;
			}
		}
		return s;
	}

	Matrix operator*(const Matrix &b) const {
		Matrix s(a.size(), b.a[0].size());
		const long long modl = 8 * mod * mod;
		for (int i = 0; i < a.size(); i++) {
			for (int k = 0; k < a[0].size(); k++) {
				for (int j = 0; j < b.a[0].size(); j++) {
					s[i][j] += a[i][k] * b.a[k][j];
					if (s[i][j] >= modl) s[i][j] -= modl; 
				}
			}
			for (int j = 0; j < b.a[0].size(); j++) s[i][j] %= mod;
		}
		return s;
	}

	vector<long long> &operator[](int i) {
		return a[i];
	}

	void show() {
		cerr << "show" << endl;
		for (int i = 0; i < a.size(); i++) {
			for (int j = 0; j < a[0].size(); j++) {
				cerr << a[i][j] << " ";
			}
			cerr << endl;
		}
		cerr << endl;
	}
};

const int N = 1 << 17;

struct Tuple {
	Matrix A, B, S;
	
	Tuple() : S(2, 3) {
		A = Matrix::I(3);
		B = Matrix::I(2);
	}

	Tuple(Matrix A, Matrix B, Matrix S) : A(A), B(B), S(S) {}

	Tuple operator*(const Tuple &r) const {
		return Tuple(r.A * A, B * r.B, S + B * r.S * A);
	}
};

Matrix va(3, 1), vb(2, 1);
Tuple seg[N * 2];

void build() {
	for (int k = 0; k < N; k++) {
		for (int i = 0; i < 2; i++) {
			for (int j = 0; j < 3; j++) {
				seg[k + N].S[i][j] = k * 6 + i * 3 + j;
			}
		}
		for (int i = 0; i < 3; i++) seg[k + N].A[i][i] = 1;
		for (int i = 0; i < 2; i++) seg[k + N].B[i][i] = 1;
	}

	for (int k = N - 1; k > 0; k--) {
		seg[k] = seg[k * 2 + 0] * seg[k * 2 + 1];
	}
}

void update(int k, int type, Matrix mat) {
	k += N;
	if (type == 0) {
		seg[k].A = mat;
	} else {
		seg[k].B = mat;
	}
	while (k > 1) {
		k >>= 1;
		seg[k] = seg[k * 2 + 0] * seg[k * 2 + 1];
	}
}

Tuple query(int l, int r) {
	Tuple L, R;
	for (l += N, r += N; l < r; l >>= 1, r >>= 1) {
		if (l & 1) L = L * seg[l++];
		if (r & 1) R = seg[--r] * R;
	}
	return L * R;
}

// I6 A0 A1 | A2 A3 A4 A5
// I5 A0 A1 | A2 A3 A4   
// I4 A0 A1 | A2 A3
// I3 A0 A1 | A2
// -------------------------------
// I2 A0 A1                           
// I1 A0

int main() {
	int n;
	cin >> n;

	for (int i = 0; i < 3; i++) {
		int tmp;
		scanf("%d", &tmp);
		va[i][0] = tmp;
	}
	for (int i = 0; i < 2; i++) {
		int tmp;
		scanf("%d", &tmp);
		vb[i][0] = tmp;
	}

	build();

	int q;
	cin >> q;

	for (int ii = 0; ii < q; ii++) {
		string s;
		cin >> s;

		if (s == "a") {
			int k;
			scanf("%d", &k);
			Matrix mat(3, 3);
			for (int i = 0; i < 3; i++) {
				for (int j = 0; j < 3; j++) {
					int x;
					scanf("%d", &x);
					mat[i][j] = x;
				}
			}
			update(k, 0, mat);
		} else if (s == "b") {
			int k;
			scanf("%d", &k);
			Matrix mat(2, 2);
			for (int i = 0; i < 2; i++) {
				for (int j = 0; j < 2; j++) {
					int x;
					scanf("%d", &x);
					mat[i][j] = x;
				}
			}
			update(k, 1, mat);
		} else if (s == "ga") {
			int k;
			scanf("%d", &k);

			auto ans = query(0, k).A * va;
			for (int i = 0; i < 3; i++) {
				printf("%lld ", ans[i][0]);
			}
			printf("\n");
			fflush(stdout);
		} else if (s == "gb") {
			int k;
			scanf("%d", &k);

			auto X = query(k + 1, n + 1);
			auto Y = query(0, k + 1);
			auto ans = X.B * vb + X.S * Y.A * va;
			for (int i = 0; i < 2; i++) {
				printf("%lld ", ans[i][0]);
			}
			printf("\n");
			fflush(stdout);
		}
	}
}
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