結果
問題 | No.2206 Popcount Sum 2 |
ユーザー | kwm_t |
提出日時 | 2023-02-04 17:39:33 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
RE
|
実行時間 | - |
コード長 | 2,884 bytes |
コンパイル時間 | 4,530 ms |
コンパイル使用メモリ | 265,160 KB |
実行使用メモリ | 370,600 KB |
最終ジャッジ日時 | 2024-07-03 14:34:44 |
合計ジャッジ時間 | 72,554 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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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 | RE | - |
testcase_01 | RE | - |
testcase_02 | RE | - |
testcase_03 | RE | - |
testcase_04 | RE | - |
testcase_05 | RE | - |
testcase_06 | RE | - |
testcase_07 | RE | - |
testcase_08 | RE | - |
testcase_09 | RE | - |
testcase_10 | RE | - |
testcase_11 | RE | - |
testcase_12 | RE | - |
testcase_13 | RE | - |
testcase_14 | RE | - |
testcase_15 | RE | - |
testcase_16 | RE | - |
testcase_17 | RE | - |
testcase_18 | RE | - |
コンパイルメッセージ
In file included from /usr/include/atcoder/modint:1, from /usr/include/atcoder/convolution.hpp:11, from /usr/include/atcoder/convolution:1, from /usr/include/atcoder/all:1, from main.cpp:2: In member function 'atcoder::static_modint<m, <anonymous> >::mint& atcoder::static_modint<m, <anonymous> >::operator+=(const mint&) [with int m = 998244353; std::enable_if_t<(1 <= m)>* <anonymous> = 0]', inlined from 'void ChooseLangeSum::Create()' at main.cpp:66:21, inlined from 'void ChooseLangeSum::Init()' at main.cpp:56:9, inlined from 'ChooseLangeSum::ChooseLangeSum(int)' at main.cpp:51:36, inlined from 'int main()' at main.cpp:95:27: /usr/include/atcoder/modint.hpp:75:9: warning: iteration 200005 invokes undefined behavior [-Waggressive-loop-optimizations] 75 | _v += rhs._v; | ^~ In member function 'void ChooseLangeSum::Create()', inlined from 'void ChooseLangeSum::Init()' at main.cpp:56:9, inlined from 'ChooseLangeSum::ChooseLangeSum(int)' at main.cpp:51:36, inlined from 'int main()' at main.cpp:95:27: main.cpp:11:37: note: within this loop 11 | #define rep(i, n) for (int i = 0; i < (n); ++i) | ^ main.cpp:63:27: note: in expansion of macro 'rep' 63 | rep(i, sz)rep(j, n + 1) { | ^~~
ソースコード
#include <bits/stdc++.h> #include <atcoder/all> using namespace std; using namespace atcoder; //using mint = modint1000000007; //const int mod = 1000000007; using mint = modint998244353; const int mod = 998244353; //const int INF = 1e9; //const long long LINF = 1e18; #define rep(i, n) for (int i = 0; i < (n); ++i) #define rep2(i,l,r)for(int i=(l);i<(r);++i) #define rrep(i, n) for (int i = (n-1); i >= 0; --i) #define rrep2(i,l,r)for(int i=(r-1);i>=(l);--i) #define all(x) (x).begin(),(x).end() #define allR(x) (x).rbegin(),(x).rend() #define endl "\n" #define P pair<int,int> template<typename A, typename B> inline bool chmax(A & a, const B & b) { if (a < b) { a = b; return true; } return false; } template<typename A, typename B> inline bool chmin(A & a, const B & b) { if (a > b) { a = b; return true; } return false; } // combination mod prime // https://www.youtube.com/watch?v=8uowVvQ_-Mo&feature=youtu.be&t=1619 struct combination { vector<mint> fact, ifact; 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) { return com(n, k); } mint com(int n, int k) { //負の二項係数を考慮する場合にコメントアウトを外す //if (n < 0) return com(-n, k) * (k % 2 ? -1 : 1); if (k < 0 || k > n) return 0; return fact[n] * ifact[k] * ifact[n - k]; } mint inv(int n, int k) { //if (n < 0) return inv(-n, k) * (k % 2 ? -1 : 1); if (k < 0 || k > n) return 0; return ifact[n] * fact[k] * fact[n - k]; } mint p(int n, int k) { return fact[n] * ifact[n - k]; } }c(2000006); // 二項係数の区間和 mint v[450][200005]; struct ChooseLangeSum { public: //pは素数 ChooseLangeSum(int n) :n(n) { Init(); } private: //下準備 void Init() { sqrtn = sqrt(n); Create(); } void Create() { int sz = n / sqrtn + 1; //v = vector<vector<mint>> //v.resize(sz); //rep(i, sz)v[i].resize(n + 1); rep(i, sz)rep(j, n + 1) { int x = sqrtn * i; if (0 != j)v[i][j] = v[i][j - 1]; v[i][j] += c(x, j); } } public: // f(n,m) = Binom(n,0) +...+Binom(n,m) mint f(int n, int m) { mint ret = v[n / sqrtn][m]; int x = (n / sqrtn)*sqrtn; while (n != x) { ret *= 2; ret -= c(x, m); x++; } return ret; //if (0 == n % sqrtn) return v[n / sqrtn][m]; //return f(n - 1, m) * 2 - c(n - 1, m); } mint f(int n, int l, int r) { // Binom(n,l)+...+Binom(n,r) return f(n, r) - f(n, l - 1); } private: int n; int sqrtn; //vector<vector<mint>>v; }; int main() { ios::sync_with_stdio(false); cin.tie(nullptr); ChooseLangeSum cls(200005); int t; cin >> t; while (t--) { int n, m; cin >> n >> m; mint ans = pow_mod(2, n, mod) - 1; ans *= cls.f(n - 1, m - 1); cout << ans.val() << endl; } return 0; }