結果
| 問題 |
No.1354 Sambo's Treasure
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2021-01-17 14:39:58 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 161 ms / 2,000 ms |
| コード長 | 7,573 bytes |
| コンパイル時間 | 2,435 ms |
| コンパイル使用メモリ | 208,612 KB |
| 最終ジャッジ日時 | 2025-01-18 00:54:39 |
|
ジャッジサーバーID (参考情報) |
judge3 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 61 |
ソースコード
//@formatter:off
#include<bits/stdc++.h>
#define overload4(_1,_2,_3,_4,name,...) name
#define rep1(i,n) for (ll i = 0; i < ll(n); ++i)
#define rep2(i,s,n) for (ll i = ll(s); i < ll(n); ++i)
#define rep3(i,s,n,d) for(ll i = ll(s); i < ll(n); i+=d)
#define rep(...) overload4(__VA_ARGS__,rep3,rep2,rep1)(__VA_ARGS__)
#define rrep(i,n) for (ll i = ll(n)-1; i >= 0; i--)
#define all(a) a.begin(),a.end()
#define rall(a) a.rbegin(),a.rend()
#define pb push_back
#define eb emplace_back
#define vi vector<int>
#define vvi vector<vector<int>>
#define vl vector<ll>
#define vvl vector<vector<ll>>
#define vd vector<double>
#define vvd vector<vector<double>>
#define vs vector<string>
#define vc vector<char>
#define vvc vector<vector<char>>
#define vb vector<bool>
#define vvb vector<vector<bool>>
#define vp vector<P>
#define vvp vector<vector<P>>
#ifdef __LOCAL
#define debug(...) { cout << #__VA_ARGS__; cout << ": "; print(__VA_ARGS__); cout << flush; }
#else
#define debug(...) void(0)
#endif
#define INT(...) int __VA_ARGS__;scan(__VA_ARGS__)
#define LL(...) ll __VA_ARGS__;scan(__VA_ARGS__)
#define STR(...) string __VA_ARGS__;scan(__VA_ARGS__)
#define CHR(...) char __VA_ARGS__;scan(__VA_ARGS__)
#define DBL(...) double __VA_ARGS__;scan(__VA_ARGS__)
#define LD(...) ld __VA_ARGS__;scan(__VA_ARGS__)
using namespace std;
using ll = long long;
using P = pair<int,int>;
using LP = pair<ll,ll>;
template<class S,class T> istream& operator>>(istream &is,pair<S,T> &p) { return is >> p.first >> p.second; }
template<class S,class T> ostream& operator<<(ostream &os,const pair<S,T> &p) { return os<<'{'<<p.first<<","<<p.second<<'}'; }
template<class T> istream& operator>>(istream &is,vector<T> &v) { for(T &t:v){is>>t;} return is; }
template<class T> ostream& operator<<(ostream &os,const vector<T> &v) { os<<'[';rep(i,v.size())os<<v[i]<<(i==int(v.size()-1)?"":","); return os<<']'; }
void Yes(bool b) { cout << (b ? "Yes" : "No") << '\n'; }
void YES(bool b) { cout << (b ? "YES" : "NO") << '\n'; }
template<class T> void fin(T a) { cout << a << '\n'; exit(0); }
template<class T> bool chmin(T& a,T b) {if(a > b){a = b; return true;} return false;}
template<class T> bool chmax(T& a,T b) {if(a < b){a = b; return true;} return false;}
void scan(){}
template <class Head, class... Tail> void scan(Head& head, Tail&... tail){ cin >> head; scan(tail...); }
template<class T> void print(const T& t){ cout << t << '\n'; }
template <class Head, class... Tail> void print(const Head& head, const Tail&... tail){ cout<<head<<' '; print(tail...); }
const int inf = 1001001001;
const ll linf = 1001001001001001001;
//@formatter:on
//constexpr int mod = 1000000007;
constexpr int mod = 998244353;
struct mint {
ll x;
constexpr mint(ll x = 0) : x((x % mod + mod) % mod) {}
constexpr mint operator-() const { return mint(-x); }
constexpr mint &operator+=(const mint &a) {
if ((x += a.x) >= mod) x -= mod;
return *this;
}
constexpr mint &operator++() { return *this += mint(1); }
constexpr mint &operator-=(const mint &a) {
if ((x += mod - a.x) >= mod) x -= mod;
return *this;
}
constexpr mint &operator--() { return *this -= mint(1); }
constexpr mint &operator*=(const mint &a) {
(x *= a.x) %= mod;
return *this;
}
constexpr mint operator+(const mint &a) const {
mint res(*this);
return res += a;
}
constexpr mint operator-(const mint &a) const {
mint res(*this);
return res -= a;
}
constexpr mint operator*(const mint &a) const {
mint res(*this);
return res *= a;
}
constexpr mint pow(ll t) const {
mint res = mint(1), a(*this);
while (t > 0) {
if (t & 1) res *= a;
t >>= 1;
a *= a;
}
return res;
}
// for prime mod
constexpr mint inv() const { return pow(mod - 2); }
constexpr mint &operator/=(const mint &a) { return *this *= a.inv(); }
constexpr mint operator/(const mint &a) const {
mint res(*this);
return res /= a;
}
};
ostream &operator<<(ostream &os, const mint &a) { return os << a.x; }
bool operator==(const mint &a, const mint &b) { return a.x == b.x; }
bool operator!=(const mint &a, const mint &b) { return a.x != b.x; }
bool operator==(const mint &a, const int &b) { return a.x == b; }
bool operator!=(const mint &a, const int &b) { return a.x != b; }
class combination {
vector<mint> fact, ifact;
public:
combination(int n) : fact(n + 1), ifact(n + 1) {
assert(n < mod);
fact[0] = 1;
for (int i = 1; i <= n; ++i) fact[i] = fact[i - 1] * i;
ifact[n] = fact[n].inv();
for (int i = n; i >= 1; --i) ifact[i - 1] = ifact[i] * i;
}
mint operator()(int n, int k) {
if (k < 0 || k > n) return 0;
return fact[n] * ifact[k] * ifact[n - k];
}
} comb(400010);
mint dp[100010][110];
mint tmp[110][110];
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
INT(n, m, l, K);
chmin(K, l);
vp pt;
pt.eb(0, 0);
rep(_, m) {
INT(x, y);
pt.eb(x, y);
}
pt.eb(n, n);
m += 2;
vvp tg(m);
rep(_, l) {
INT(x, y);
auto it = lower_bound(all(pt), x, [](P val, int key) { return val.first < key; });
if (x < it->first) {
auto bit = it;
bit--;
if (y > it->second or y < bit->second) continue;
tg[it - pt.begin() - 1].eb(x - bit->first, y - bit->second);
} else {
assert(x == it->first);
if (y == it->second) {
K--;
continue;
}
if (y < it->second) {
auto bit = it;
bit--;
if (y < bit->second) continue;
tg[it - pt.begin() - 1].eb(x - bit->first, y - bit->second);
} else {
auto nx = it;
nx++;
if (y > nx->second) continue;
tg[it - pt.begin()].eb(0, y - it->second);
}
}
}
if (K < 0) fin(0);
auto f = [](P a, P b) -> mint {
auto[ax, ay] = a;
auto[bx, by] = b;
if (ax > bx or ay > by) return 0;
int dx = bx - ax, dy = by - ay;
return comb(dx + dy, dx);
};
dp[0][0] = 1;
rep(i, m - 1) {
int x = pt[i + 1].first - pt[i].first;
int y = pt[i + 1].second - pt[i].second;
assert(x > 0 and y > 0);
tg[i].eb(0, 0);
tg[i].eb(x, y);
sort(all(tg[i]), [](P a, P b) { return a.first + a.second < b.first + b.second; });
int sz = tg[i].size();
rep(j, sz) rep(k, sz) tmp[j][k] = 0;
tmp[0][0] = 1;
rep(j, sz) {
vector<mint> to(sz);
rep(k, j + 1, sz) {
to[k] = f(tg[i][j], tg[i][k]);
rep(p, j + 1, k) to[k] -= to[p] * f(tg[i][p], tg[i][k]);
}
rep(k, sz) {
mint now = tmp[j][k];
if (now.x == 0) continue;
rep(p, j + 1, sz) tmp[p][k + 1] += now * to[p];
}
}
rep(j, K + 1) {
mint now = dp[i][j];
if (now.x == 0) continue;
rep(k, sz - 1) {
if (j + k > K) break;
dp[i + 1][j + k] += now * tmp[sz - 1][k + 1];
}
}
}
mint ans = 0;
rep(i, K + 1) ans += dp[m - 1][i];
print(ans);
}