結果
問題 | No.2023 Tiling is Fun |
ユーザー | ktr216 |
提出日時 | 2022-07-29 21:46:57 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 19 ms / 2,000 ms |
コード長 | 3,311 bytes |
コンパイル時間 | 1,766 ms |
コンパイル使用メモリ | 175,024 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-07-19 14:16:39 |
合計ジャッジ時間 | 2,501 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
6,816 KB |
testcase_01 | AC | 7 ms
6,944 KB |
testcase_02 | AC | 6 ms
6,940 KB |
testcase_03 | AC | 11 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,944 KB |
testcase_05 | AC | 9 ms
6,944 KB |
testcase_06 | AC | 12 ms
6,944 KB |
testcase_07 | AC | 12 ms
6,940 KB |
testcase_08 | AC | 13 ms
6,944 KB |
testcase_09 | AC | 17 ms
6,944 KB |
testcase_10 | AC | 8 ms
6,940 KB |
testcase_11 | AC | 2 ms
6,944 KB |
testcase_12 | AC | 2 ms
6,944 KB |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | AC | 1 ms
6,940 KB |
testcase_15 | AC | 18 ms
6,940 KB |
testcase_16 | AC | 2 ms
6,940 KB |
testcase_17 | AC | 18 ms
6,944 KB |
testcase_18 | AC | 17 ms
6,940 KB |
testcase_19 | AC | 19 ms
6,944 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; #define double long double using ll = long long; using VB = vector<bool>; using VVB = vector<VB>; using VVVB = vector<VVB>; using VC = vector<char>; using VI = vector<int>; using VVI = vector<VI>; using VVVI = vector<VVI>; using VL = vector<ll>; using VVL = vector<VL>; using VVVL = vector<VVL>; using VVVVL = vector<VVVL>; using VD = vector<double>; using VVD = vector<VD>; using VVVD = vector<VVD>; //using P = pair<int, int>; #define REP(i, n) for (int i = 0; i < (int)(n); i++) #define FOR(i, a, b) for (ll i = a; i < (ll)(b); i++) #define ALL(a) (a).begin(),(a).end() constexpr int INF = 1001001001; constexpr ll LINF = 1001001001001001001ll; constexpr int DX[] = {1, 1, 0, -1, -1, -1, 0, 1}; constexpr int DY[] = {0, 1, 1, 1, 0, -1, -1, -1}; template< typename T1, typename T2> inline bool chmax(T1 &a, T2 b) {return a < b && (a = b, true); } template< typename T1, typename T2> inline bool chmin(T1 &a, T2 b) {return a > b && (a = b, true); } const ll MOD = 998244353; const int MAX_N = 200010; int par[MAX_N]; int rnk[MAX_N]; int siz[MAX_N]; void init(int n) { REP(i,n) { par[i] = i; rnk[i] = 0; siz[i] = 1; } } int find(int x) { if (par[x] == x) { return x; } else { return par[x] = find(par[x]); } } void unite(int x, int y) { x = find(x); y = find(y); if (x == y) return; int s = siz[x] + siz[y]; if (rnk[x] < rnk[y]) { par[x] = y; } else { par[y] = x; if (rnk[x] == rnk[y]) rnk[x]++; } siz[find(x)] = s; } bool same(int x, int y) { return find(x) == find(y); } int size(int x) { return siz[find(x)]; } ll mod_pow(ll x, ll n, ll mod) { ll res = 1; while (n > 0) { if (n & 1) res = res * x % mod; x = x * x % mod; n >>= 1; } return res; } ll gcd(ll x, ll y) { if (y == 0) return x; return gcd(y, x % y); } const int MAX_E = 5000, MAX_V = 2500; struct edge { ll from, to, cost; }; edge es[MAX_E]; ll d[MAX_V]; int V, E; void shortest_path(int s) { for (int i = 0; i < V; i++) d[i] = LINF; d[s] = 0; REP(j, V) { bool update = false; for (int i = 0; i < E; i++) { edge e = es[i]; if (d[e.from] != LINF && d[e.to] > d[e.from] + e.cost) { d[e.to] = d[e.from] + e.cost; update = true; } } if (!update) break; } } bool find_negative_loop() { memset(d, 0, sizeof(d)); for (int i = 0; i < V; i++) { for (int j = 0; j < E; j++) { edge e = es[j]; if (d[e.to] > d[e.from] + e.cost) { d[e.to] = d[e.from] + e.cost; if (e.to == V - 1 && i == V - 1) return true; } } } return false; } map<ll, ll> mp; ll f(ll X) { if (mp.find(X) != mp.end()) return mp[X]; if (X < 5) { mp[X] = X; return X; } ll Y = X / 2, Z = X - Y; mp[X] = f(Y) * f(Z) % MOD; return mp[X]; } int main() { ios::sync_with_stdio(false); std::cin.tie(nullptr); ll a, b, ans = 1; cin >> a >> b; REP(i, a - 1) ans = ans * (a + b - 2 - i) % MOD; REP(i, a - 1) ans = ans * mod_pow(i + 1, MOD - 2, MOD) % MOD; cout << ans << endl; }