結果
問題 | No.1952 xooooooooooor |
ユーザー | RVindicatio |
提出日時 | 2022-05-20 23:30:23 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 3,123 bytes |
コンパイル時間 | 3,255 ms |
コンパイル使用メモリ | 229,144 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-09-20 09:57:42 |
合計ジャッジ時間 | 4,276 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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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 | 1 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 1 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 1 ms
5,376 KB |
testcase_08 | AC | 1 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 1 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 2 ms
5,376 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 1 ms
5,376 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | AC | 2 ms
5,376 KB |
testcase_21 | AC | 2 ms
5,376 KB |
testcase_22 | AC | 1 ms
5,376 KB |
testcase_23 | AC | 2 ms
5,376 KB |
testcase_24 | AC | 1 ms
5,376 KB |
testcase_25 | AC | 1 ms
5,376 KB |
testcase_26 | AC | 1 ms
5,376 KB |
testcase_27 | AC | 1 ms
5,376 KB |
testcase_28 | AC | 2 ms
5,376 KB |
testcase_29 | AC | 1 ms
5,376 KB |
testcase_30 | AC | 2 ms
5,376 KB |
testcase_31 | AC | 2 ms
5,376 KB |
testcase_32 | AC | 1 ms
5,376 KB |
testcase_33 | AC | 1 ms
5,376 KB |
testcase_34 | AC | 1 ms
5,376 KB |
testcase_35 | AC | 2 ms
5,376 KB |
testcase_36 | AC | 2 ms
5,376 KB |
testcase_37 | AC | 2 ms
5,376 KB |
testcase_38 | AC | 1 ms
5,376 KB |
ソースコード
#pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #include<bits/stdc++.h> using namespace std; using ll = long long; const int INF = 1e9; const ll inf = 1LL<<60; template<int MOD> struct ModInt { static const int Mod = MOD; unsigned x; ModInt() : x(0) { } ModInt(signed sig) { x = sig < 0 ? sig % MOD + MOD : sig % MOD; } ModInt(signed long long sig) { x = sig < 0 ? sig % MOD + MOD : sig % MOD; } int get() const { return (int)x; } ModInt &operator+=(ModInt that) { if ((x += that.x) >= MOD) x -= MOD; return *this; } ModInt &operator-=(ModInt that) { if ((x += MOD - that.x) >= MOD) x -= MOD; return *this; } ModInt &operator*=(ModInt that) { x = (unsigned long long)x * that.x % MOD; return *this; } ModInt &operator/=(ModInt that) { return *this *= that.inverse(); } ModInt operator+(ModInt that) const { return ModInt(*this) += that; } ModInt operator-(ModInt that) const { return ModInt(*this) -= that; } ModInt operator*(ModInt that) const { return ModInt(*this) *= that; } ModInt operator/(ModInt that) const { return ModInt(*this) /= that; } ModInt inverse() const { long long a = x, b = MOD, u = 1, v = 0; while (b) { long long t = a / b; a -= t * b; std::swap(a, b); u -= t * v; std::swap(u, v); } return ModInt(u); } bool operator==(ModInt that) const { return x == that.x; } bool operator!=(ModInt that) const { return x != that.x; } ModInt operator-() const { ModInt t; t.x = x == 0 ? 0 : Mod - x; return t; } }; template<int MOD> ostream& operator<<(ostream& st, const ModInt<MOD> a) { st << a.get(); return st; }; template<int MOD> ModInt<MOD> operator^(ModInt<MOD> a, unsigned long long k) { ModInt<MOD> r = 1; while (k) { if (k & 1) r *= a; a *= a; k >>= 1; } return r; } typedef ModInt<998244353> mint; void solve() { int n, m; cin >> n >> m; string l = ""; while (n > 0) { if (n & 1) l += '1'; else l += '0'; n /= 2; } reverse(l.begin(), l.end()); if (m < 100) { vector<string> t(m); t[0] = l; for (int i=1; i<m; i++) { t[i] = t[i-1] + '0'; } for (int i=0; i<m; i++) { reverse(t[i].begin(), t[i].end()); while (t[i].size() < t.back().size()) t[i] += '0'; } mint ans = mint(0); for (int i=0; i<t[0].size(); i++) { int p = 0; for (int j=0; j<m; j++) p ^= (t[j][i] == '1' ? 1 : 0); if (p) ans += mint(2)^(i); } cout << ans << '\n'; } else { reverse(l.begin(), l.end()); int L = l.size(); mint ans = mint(0); int p = 0; for (int i=0; i+1<L; i++) { p ^= (l[i] == '1' ? 1 : 0); if (p) ans += mint(2)^(i); } p ^= (l.back() == '1' ? 1 : 0); if (p) { mint e = mint(2)^(L-1); e *= ((mint(2)^(m-L+1)) - mint(1)); ans += e; } mint q = mint(2)^(m); for (int i=0; i<L-1; i++) { p ^= (l[i] == '1' ? 1 : 0); if (p) ans += q; q *= mint(2); } cout << ans << '\n'; } } int main() { ios::sync_with_stdio(false); std::cin.tie(nullptr); // int t; cin >> t; /*while (t--)*/ solve(); }