結果
問題 | No.862 XORでX |
ユーザー | minato |
提出日時 | 2020-10-18 09:57:14 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 10 ms / 2,000 ms |
コード長 | 5,386 bytes |
コンパイル時間 | 3,567 ms |
コンパイル使用メモリ | 227,580 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-21 03:19:39 |
合計ジャッジ時間 | 5,786 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | 4 ms
5,248 KB |
testcase_01 | AC | 4 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 4 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 4 ms
5,376 KB |
testcase_06 | AC | 3 ms
5,376 KB |
testcase_07 | AC | 3 ms
5,376 KB |
testcase_08 | AC | 5 ms
5,376 KB |
testcase_09 | AC | 4 ms
5,376 KB |
testcase_10 | AC | 4 ms
5,376 KB |
testcase_11 | AC | 4 ms
5,376 KB |
testcase_12 | AC | 3 ms
5,376 KB |
testcase_13 | AC | 4 ms
5,376 KB |
testcase_14 | AC | 3 ms
5,376 KB |
testcase_15 | AC | 3 ms
5,376 KB |
testcase_16 | AC | 9 ms
5,376 KB |
testcase_17 | AC | 9 ms
5,376 KB |
testcase_18 | AC | 9 ms
5,376 KB |
testcase_19 | AC | 8 ms
5,376 KB |
testcase_20 | AC | 10 ms
5,376 KB |
testcase_21 | AC | 10 ms
5,376 KB |
testcase_22 | AC | 10 ms
5,376 KB |
testcase_23 | AC | 9 ms
5,376 KB |
testcase_24 | AC | 10 ms
5,376 KB |
testcase_25 | AC | 10 ms
5,376 KB |
testcase_26 | AC | 9 ms
5,376 KB |
testcase_27 | AC | 9 ms
5,376 KB |
testcase_28 | AC | 9 ms
5,376 KB |
testcase_29 | AC | 10 ms
5,376 KB |
testcase_30 | AC | 9 ms
5,376 KB |
testcase_31 | AC | 10 ms
5,376 KB |
ソースコード
#ifdef ONLINE_JUDGE #pragma GCC target("avx2,avx") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #endif #include <bits/stdc++.h> using namespace std; using ll = long long; using ull = unsigned long long; using i128 = __int128_t; using pii = pair<int, int>; using pll = pair<long long, long long>; #define rep(i, n) for (int i = 0; i < (n); i++) #define all(x) (x).begin(), (x).end() constexpr char ln = '\n'; istream& operator>>(istream& is, __int128_t& x) { x = 0; string s; is >> s; int n = int(s.size()), it = 0; if (s[0] == '-') it++; for (; it < n; it++) x = (x * 10 + s[it] - '0'); if (s[0] == '-') x = -x; return is; } ostream& operator<<(ostream& os, __int128_t x) { if (x == 0) return os << 0; if (x < 0) os << '-', x = -x; deque<int> deq; while (x) deq.emplace_front(x % 10), x /= 10; for (int e : deq) os << e; return os; } template<class T1, class T2> ostream& operator<<(ostream& os, const pair<T1, T2>& p) { return os << "(" << p.first << ", " << p.second << ")"; } template<class T> ostream& operator<<(ostream& os, const vector<T>& v) { os << "{"; for (int i = 0; i < int(v.size()); i++) { if (i) os << ", "; os << v[i]; } return os << "}"; } template<class Container> inline int SZ(Container& v) { return int(v.size()); } template<typename T> inline void UNIQUE(vector<T>& v) { v.erase(unique(v.begin(), v.end()), v.end()); } template<class T1, class T2> inline bool chmax(T1& a, T2 b) { if (a < b) {a = b; return true ;} return false ;} template<class T1, class T2> inline bool chmin(T1& a, T2 b) { if (a > b) {a = b; return true ;} return false ;} inline int topbit(int x) { return x == 0 ? -1 : 31 - __builtin_clz(x); } inline int topbit(long long x) { return x == 0 ? -1 : 63 - __builtin_clzll(x); } inline int botbit(int x) { return x == 0 ? 32 : __builtin_ctz(x); } inline int botbit(long long x) { return x == 0 ? 64 : __builtin_ctzll(x); } inline int popcount(int x) { return __builtin_popcount(x); } inline int popcount(long long x) { return __builtin_popcountll(x); } inline int kthbit(long long x, int k) { return (x>>k) & 1; } inline constexpr long long TEN(int x) { return x == 0 ? 1 : TEN(x-1) * 10; } namespace detail { template<typename Tp, int Nb> auto make_vector(vector<int>& sizes, Tp const& x) { if constexpr (Nb == 1) { return vector(sizes[0], x); } else { int size = sizes[Nb-1]; sizes.pop_back(); return vector(size, make_vector<Tp, Nb-1>(sizes, x)); } } } template<typename Tp, int Nb> auto make_vector(int const(&sizes)[Nb], Tp const& x = Tp()) { vector<int> s(Nb); for (int i = 0; i < Nb; i++) s[i] = sizes[Nb-i-1]; return detail::make_vector<Tp, Nb>(s, x); } inline void print() { cout << "\n"; } template<class T> inline void print(const vector<T>& v) { for (int i = 0; i < int(v.size()); i++) { if (i) cout << " "; cout << v[i]; } print(); } template<class T, class... Args> inline void print(const T& x, const Args& ... args) { cout << x << " "; print(args...); } #ifdef MINATO_LOCAL inline void debug_out() { cerr << endl; } template <class T, class... Args> inline void debug_out(const T& x, const Args& ... args) { cerr << " " << x; debug_out(args...); } #define debug(...) cerr << __LINE__ << " : [" << #__VA_ARGS__ << "] =", debug_out(__VA_ARGS__) #define dump(x) cerr << __LINE__ << " : " << #x << " = " << (x) << endl #else #define debug(...) (void(0)) #define dump(x) (void(0)) #endif struct fast_ios { fast_ios() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_; //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// template<typename T> struct RandomNumberGenerator { mt19937 mt; RandomNumberGenerator() : mt(chrono::steady_clock::now().time_since_epoch().count()) {} T operator()(T a, T b) { // [a, b) uniform_int_distribution<T> dist(a, b - 1); return dist(mt); } T operator()(T b) { // [0, b) return (*this)(0, b); } }; constexpr int MAX = 100005; int main() { int N,X; cin >> N >> X; if (N==1) { cout << X << ln; return 0; } RandomNumberGenerator<ull> RNG; vector<int> A(MAX); vector<int> seen(MAX+1); iota(all(A),1); int ALL = 0; rep(i,MAX) ALL ^= A[i]; while (true) { shuffle(all(A),RNG.mt); fill(all(seen),0); if (N < MAX/2) { int val = 0; rep(i,N-1) { val ^= A[i]; seen[A[i]] = 1; } val ^= X; if (!seen[val]) { rep(i,N-1) cout << A[i] << ln; cout << val << ln; return 0; } } else { int K = MAX-N; int val = 0; rep(i,K-1) { val ^= A[i]; seen[A[i]] = 1; } val ^= ALL; val ^= X; if (!seen[val]) { for (int i = K-1; i < MAX; i++) { if (A[i] != val) { cout << A[i] << ln; } } return 0; } } } }