結果
| 問題 |
No.1141 田グリッド
|
| コンテスト | |
| ユーザー |
theory_and_me
|
| 提出日時 | 2020-08-01 16:32:39 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 96 ms / 2,000 ms |
| コード長 | 4,198 bytes |
| コンパイル時間 | 3,947 ms |
| コンパイル使用メモリ | 207,628 KB |
| 最終ジャッジ日時 | 2025-01-12 12:44:03 |
|
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 31 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
typedef unsigned long long ull;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<double, double> pdd;
typedef vector<ll> vl;
typedef vector<vector<ll>> vvl;
//typedef vector<vector<ll>> Graph;
const ll mod = 1e9 + 7;
//const ll mod = 998244353;
#define REP(i,n) for(ll i=0;i<(ll)n;i++)
#define dump(x) cerr << #x << " = " << (x) << endl;
#define spa << " " <<
#define fi first
#define se second
template<class T> bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T> bool chmin(T &a, const T &b) { if (a>b) { a=b; return 1; } return 0; }
template<class S, class T> ostream& operator << (ostream& os, const pair<S, T> v){
os << "(" << v.first << ", " << v.second << ")"; return os;
}
template<class T> ostream& operator << (ostream& os, const vector<T> v){
for(int i = 0; i < (int)v.size(); i++){if(i > 0){os << " ";} os << v[i];} return os;
}
template<class T> ostream& operator << (ostream& os, const vector<vector<T>> v){
for(int i = 0; i < (int)v.size(); i++){if(i > 0){os << endl;} os << v[i];} return os;
}
template<typename T> void debug(vector<vector<T>>&v,ll h,ll w){for(ll i=0;i<h;i++)
{cerr<<v[i][0];for(ll j=1;j<w;j++)cerr spa v[i][j];cerr<<endl;}};
template<typename T> void debug(vector<T>&v,ll n){if(n!=0)cerr<<v[0];
for(ll i=1;i<n;i++)cerr spa v[i];
cerr<<endl;};
template <std::uint_fast64_t Modulus> class modint {
// long long から modint を作るときは必ず正の数にしてからコンストラクタに入れること!
// そうしないとバグります
using u64 = std::uint_fast64_t;
public:
u64 a;
constexpr modint(const u64 x = 0) noexcept : a(x % Modulus) {}
constexpr u64 &value() noexcept { return a; }
constexpr const u64 &value() const noexcept { return a; }
constexpr modint operator+(const modint rhs) const noexcept {
return modint(*this) += rhs;
}
constexpr modint operator-(const modint rhs) const noexcept {
return modint(*this) -= rhs;
}
constexpr modint operator*(const modint rhs) const noexcept {
return modint(*this) *= rhs;
}
constexpr modint operator/(const modint rhs) const noexcept {
return modint(*this) /= rhs;
}
constexpr modint &operator+=(const modint rhs) noexcept {
a += rhs.a;
if (a >= Modulus) {
a -= Modulus;
}
return *this;
}
constexpr modint &operator-=(const modint rhs) noexcept {
if (a < rhs.a) {
a += Modulus;
}
a -= rhs.a;
return *this;
}
constexpr modint &operator*=(const modint rhs) noexcept {
a = a * rhs.a % Modulus;
return *this;
}
constexpr modint &operator/=(modint rhs) noexcept {
u64 exp = Modulus - 2;
while (exp) {
if (exp % 2) {
*this *= rhs;
}
rhs *= rhs;
exp /= 2;
}
return *this;
}
};
using mint = modint<mod>;
template <class T, class U> constexpr T power(T x, U exp) {
T ret = static_cast<T>(1);
while (exp) {
if (exp % static_cast<U>(2) == static_cast<U>(1))
ret *= x;
exp /= static_cast<U>(2);
x *= x;
}
return ::std::move(ret);
}
using vm = vector<mint>;
using vvm = vector<vm>;
using vvvm = vector<vvm>;
int main(){
cin.tie(0);
ios::sync_with_stdio(false);
ll H, W;
cin >> H >> W;
vvl A(H, vl(W, 0));
REP(i, H){
REP(j, W){
cin >> A[i][j];
}
}
vvvm B(4, vvm(H, vm(W, 0)));
REP(i, H)REP(j, W){
B[0][i][j] = A[i][j];
B[1][i][j] = A[H-1-i][j];
B[2][i][j] = A[i][W-1-j];
B[3][i][j] = A[H-1-i][W-1-j];
}
vvvm S;
auto cum2d = [&](vvm &x){
vvm cum(H+1, vm(W+1, 1));
REP(i, H)REP(j, W) cum[i+1][j+1] = cum[i+1][j] * x[i][j];
REP(i, H)REP(j, W) cum[i+1][j+1] *= cum[i][j+1];
return cum;
};
REP(i, 4) S.push_back(cum2d(B[i]));
ll Q;
cin >> Q;
while(Q--){
ll r, c;
cin >> r >> c;
r--, c--;
mint res = 1;
res *= S[0][r][c];
res *= S[1][H-1-r][c];
res *= S[2][r][W-1-c];
res *= S[3][H-1-r][W-1-c];
cout << res.value() << "\n";
}
return 0;
}
theory_and_me