結果
問題 | No.2485 Add to Variables (Another) |
ユーザー | Kude |
提出日時 | 2023-09-23 00:26:02 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 104 ms / 2,000 ms |
コード長 | 2,468 bytes |
コンパイル時間 | 3,618 ms |
コンパイル使用メモリ | 283,744 KB |
実行使用メモリ | 11,340 KB |
最終ジャッジ日時 | 2024-07-16 00:58:44 |
合計ジャッジ時間 | 6,520 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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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 | 14 ms
11,264 KB |
testcase_01 | AC | 14 ms
11,336 KB |
testcase_02 | AC | 15 ms
11,136 KB |
testcase_03 | AC | 15 ms
11,204 KB |
testcase_04 | AC | 15 ms
11,212 KB |
testcase_05 | AC | 14 ms
11,136 KB |
testcase_06 | AC | 14 ms
11,080 KB |
testcase_07 | AC | 15 ms
11,208 KB |
testcase_08 | AC | 14 ms
11,264 KB |
testcase_09 | AC | 16 ms
11,204 KB |
testcase_10 | AC | 14 ms
11,212 KB |
testcase_11 | AC | 15 ms
11,208 KB |
testcase_12 | AC | 24 ms
11,136 KB |
testcase_13 | AC | 14 ms
11,212 KB |
testcase_14 | AC | 15 ms
11,084 KB |
testcase_15 | AC | 14 ms
11,208 KB |
testcase_16 | AC | 14 ms
11,136 KB |
testcase_17 | AC | 14 ms
11,212 KB |
testcase_18 | AC | 16 ms
11,208 KB |
testcase_19 | AC | 15 ms
11,136 KB |
testcase_20 | AC | 15 ms
11,204 KB |
testcase_21 | AC | 14 ms
11,136 KB |
testcase_22 | AC | 14 ms
11,136 KB |
testcase_23 | AC | 15 ms
11,080 KB |
testcase_24 | AC | 14 ms
11,264 KB |
testcase_25 | AC | 100 ms
11,208 KB |
testcase_26 | AC | 68 ms
11,340 KB |
testcase_27 | AC | 21 ms
11,264 KB |
testcase_28 | AC | 36 ms
11,212 KB |
testcase_29 | AC | 67 ms
11,340 KB |
testcase_30 | AC | 100 ms
11,204 KB |
testcase_31 | AC | 99 ms
11,208 KB |
testcase_32 | AC | 100 ms
11,204 KB |
testcase_33 | AC | 100 ms
11,336 KB |
testcase_34 | AC | 102 ms
11,212 KB |
testcase_35 | AC | 104 ms
11,336 KB |
testcase_36 | AC | 103 ms
11,208 KB |
testcase_37 | AC | 102 ms
11,340 KB |
testcase_38 | AC | 99 ms
11,080 KB |
testcase_39 | AC | 102 ms
11,204 KB |
testcase_40 | AC | 103 ms
11,212 KB |
testcase_41 | AC | 99 ms
11,212 KB |
testcase_42 | AC | 14 ms
11,208 KB |
testcase_43 | AC | 15 ms
11,136 KB |
コンパイルメッセージ
main.cpp:49:6: warning: '{anonymous}::mint {anonymous}::perm(int, int)' defined but not used [-Wunused-function] 49 | mint perm(int n, int k) { | ^~~~ main.cpp:48:6: warning: '{anonymous}::mint {anonymous}::fact(int)' defined but not used [-Wunused-function] 48 | mint fact(int n) {return Fact[n];} | ^~~~ main.cpp:44:6: warning: '{anonymous}::mint {anonymous}::icomb(int, int)' defined but not used [-Wunused-function] 44 | mint icomb(int n, int k) { | ^~~~~ main.cpp:37:6: warning: '{anonymous}::mint {anonymous}::comb(int, int)' defined but not used [-Wunused-function] 37 | mint comb(int n, int k) { | ^~~~
ソースコード
#include<bits/stdc++.h> namespace { #pragma GCC diagnostic ignored "-Wunused-function" #include<atcoder/all> #pragma GCC diagnostic warning "-Wunused-function" using namespace std; using namespace atcoder; #define rep(i,n) for(int i = 0; i < (int)(n); i++) #define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--) #define all(x) begin(x), end(x) #define rall(x) rbegin(x), rend(x) template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; } template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; } using ll = long long; using P = pair<int,int>; using VI = vector<int>; using VVI = vector<VI>; using VL = vector<ll>; using VVL = vector<VL>; using mint = modint998244353; constexpr int FACT_SIZE = 1000000; mint Fact[FACT_SIZE + 1]; mint iFact[FACT_SIZE + 1]; const auto fact_init = [] { Fact[0] = mint::raw(1); for(int i = 1; i <= FACT_SIZE; ++i) { Fact[i] = Fact[i-1] * i; } iFact[FACT_SIZE] = Fact[FACT_SIZE].inv(); for(int i = FACT_SIZE; i; --i) { iFact[i-1] = iFact[i] * i; } return false; }(); mint comb(int n, int k) { if (k == 0) return mint::raw(1); assert(n >= 0 && k >= 0); if (k > n) return mint::raw(0); return Fact[n] * iFact[n - k] * iFact[k]; } mint icomb(int n, int k) { return iFact[n] * Fact[n - k] * Fact[k]; } mint fact(int n) {return Fact[n];} mint perm(int n, int k) { assert(0 <= n); return Fact[n] * iFact[n - k]; } } int main() { ios::sync_with_stdio(false); cin.tie(0); int n, m; cin >> n >> m; VI a(n); rep(i, n) cin >> a[i]; VI b(n); int rest = m; rep(i, n - 1) { if (a[i] < a[i+1]) { int d = a[i+1] - a[i]; b[i+1] += d; rest -= d; } else { int d = a[i] - a[i+1]; b[0] += d; b[i+1] -= d; rest -= d; } } rep(i, n - 1) b[i+1] += b[i]; if (b[0] > a[0]) { cout << 0 << '\n'; return 0; } int T = a[0] - b[0]; vector<mint> f(m + 1); f[0] = 1; rep(i, n - 1) { int d = abs(a[i+1] - a[i]); vector<mint> g(m + 1); rep(i, m + 1) g[i] = iFact[i] * iFact[d + i]; f = convolution(f, g); f.resize(m + 1); } mint ans; rep(i, m + 1) { int r = rest - 2 * i; if (r < 0) break; int todo = T - i; int emp = r - todo; if (todo >= 0 && emp >= 0) { ans += f[i] * iFact[todo] * iFact[emp]; } } ans *= Fact[m]; cout << ans.val() << '\n'; }