結果
問題 | No.2895 Zero XOR Subset |
ユーザー | dyktr_06 |
提出日時 | 2024-09-20 21:48:12 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 6,939 bytes |
コンパイル時間 | 2,781 ms |
コンパイル使用メモリ | 214,032 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-09-20 21:48:21 |
合計ジャッジ時間 | 7,414 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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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
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | WA | - |
testcase_03 | AC | 1 ms
6,944 KB |
testcase_04 | AC | 1 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | WA | - |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | AC | 2 ms
6,944 KB |
testcase_11 | AC | 1 ms
6,940 KB |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | AC | 2 ms
6,940 KB |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | AC | 2 ms
6,940 KB |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | AC | 2 ms
6,940 KB |
testcase_21 | AC | 2 ms
6,940 KB |
testcase_22 | WA | - |
testcase_23 | AC | 3 ms
6,944 KB |
testcase_24 | AC | 2 ms
5,376 KB |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | AC | 2 ms
6,944 KB |
testcase_28 | WA | - |
testcase_29 | WA | - |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | WA | - |
testcase_33 | WA | - |
testcase_34 | WA | - |
testcase_35 | AC | 2 ms
6,940 KB |
testcase_36 | WA | - |
ソースコード
#include <bits/stdc++.h> using namespace std; #define overload4(_1, _2, _3, _4, name, ...) name #define rep1(n) for(int i = 0; i < (int)(n); ++i) #define rep2(i, n) for(int i = 0; i < (int)(n); ++i) #define rep3(i, a, b) for(int i = (a); i < (int)(b); ++i) #define rep4(i, a, b, c) for(int i = (a); i < (int)(b); i += (c)) #define rep(...) overload4(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__) #define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; --i) #define ALL(a) (a).begin(), (a).end() #define Sort(a) (sort((a).begin(), (a).end())) #define RSort(a) (sort((a).rbegin(), (a).rend())) #define UNIQUE(a) (a.erase(unique((a).begin(), (a).end()), (a).end())) typedef long long int ll; typedef unsigned long long ul; typedef long double ld; typedef vector<int> vi; typedef vector<long long> vll; typedef vector<char> vc; typedef vector<string> vst; typedef vector<double> vd; typedef vector<long double> vld; typedef pair<long long, long long> P; template<class T> long long sum(const T& a){ return accumulate(a.begin(), a.end(), 0LL); } template<class T> auto min(const T& a){ return *min_element(a.begin(), a.end()); } template<class T> auto max(const T& a){ return *max_element(a.begin(), a.end()); } const long long MINF = 0x7fffffffffff; const long long INF = 0x1fffffffffffffff; const long long MOD = 998244353; const long double EPS = 1e-9; const long double PI = acos(-1); template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } template<typename T1, typename T2> istream &operator>>(istream &is, pair<T1, T2> &p){ is >> p.first >> p.second; return is; } template<typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &p){ os << "(" << p.first << ", " << p.second << ")"; return os; } template<typename T> istream &operator>>(istream &is, vector<T> &v){ for(T &in : v) is >> in; return is; } template<typename T> ostream &operator<<(ostream &os, const vector<T> &v){ for(int i = 0; i < (int) v.size(); ++i){ os << v[i] << (i + 1 != (int) v.size() ? " " : ""); } return os; } template <typename T, typename S> ostream &operator<<(ostream &os, const map<T, S> &mp){ for(auto &[key, val] : mp){ os << key << ":" << val << " "; } return os; } template <typename T> ostream &operator<<(ostream &os, const set<T> &st){ auto itr = st.begin(); for(int i = 0; i < (int)st.size(); ++i){ os << *itr << (i + 1 != (int)st.size() ? " " : ""); itr++; } return os; } template <typename T> ostream &operator<<(ostream &os, const multiset<T> &st){ auto itr = st.begin(); for(int i = 0; i < (int)st.size(); ++i){ os << *itr << (i + 1 != (int)st.size() ? " " : ""); itr++; } return os; } template <typename T> ostream &operator<<(ostream &os, queue<T> q){ while(q.size()){ os << q.front() << " "; q.pop(); } return os; } template <typename T> ostream &operator<<(ostream &os, deque<T> q){ while(q.size()){ os << q.front() << " "; q.pop_front(); } return os; } template <typename T> ostream &operator<<(ostream &os, stack<T> st){ while(st.size()){ os << st.top() << " "; st.pop(); } return os; } template <class T, class Container, class Compare> ostream &operator<<(ostream &os, priority_queue<T, Container, Compare> pq){ while(pq.size()){ os << pq.top() << " "; pq.pop(); } return os; } template<class T, class U> inline T vin(T& vec, U n) { vec.resize(n); for(int i = 0; i < (int) n; ++i) cin >> vec[i]; return vec; } template<class T> inline void vout(T vec, string s = "\n"){ for(auto x : vec) cout << x << s; } template<class... T> void in(T&... a){ (cin >> ... >> a); } void out(){ cout << '\n'; } template<class T, class... Ts> void out(const T& a, const Ts&... b){ cout << a; (cout << ... << (cout << ' ', b)); cout << '\n'; } template<class T, class U> void inGraph(vector<vector<T>>& G, U n, U m, bool directed = false){ G.resize(n); for(int i = 0; i < m; ++i){ int a, b; cin >> a >> b; a--, b--; G[a].push_back(b); if(!directed) G[b].push_back(a); } } template <typename T> struct BinaryBasis{ vector<T> basis, original, inds; int cnt = 0; BinaryBasis(){}; BinaryBasis(const vector<T> &vec){ for(auto x : vec){ T v = (T) 1 << (cnt++); T y = x; int len = basis.size(); for(int i = 0; i < len; i++){ if((y ^ basis[i]) < y){ y ^= basis[i]; v ^= inds[i]; } } if(y > 0){ basis.push_back(y); original.push_back(x); inds.push_back(v); } } normalize(); } pair<T, T> add(const T &x){ T v = (T) 1 << (cnt++); T y = x; int len = basis.size(); for(int i = 0; i < len; i++){ if((y ^ basis[i]) < y){ y ^= basis[i]; v ^= inds[i]; } } if(y > 0){ basis.push_back(y); original.push_back(x); inds.push_back(v); } return make_pair(y, v); } void normalize(){ int len = basis.size(); for(int i = 0; i < len; i++){ for(int j = i + 1; j < len; j++){ if(basis[j] < basis[i]){ swap(basis[i], basis[j]); swap(original[i], original[j]); swap(inds[i], inds[j]); } } } for(int i = 0; i < (int) basis.size(); ++i){ for(int j = 0; j < i; ++j){ if((basis[i] ^ basis[j]) < basis[i]){ basis[i] ^= basis[j]; inds[i] ^= inds[j]; } } } } bool exist(const T &x){ T y = x; for(auto z : basis){ y = min(y, y ^ z); } return y == 0; } T kth_element(const long long &k){ T res = 0; for(int i = 0; i < (int) basis.size(); ++i){ if(k & (1LL << i)){ res ^= basis[i]; } } return res; } size_t size(){ return basis.size(); } }; void input(){ } void solve(){ ll n; in(n); vll a; vin(a, n); BinaryBasis<ll> bb; map<ll, ll> idx; rep(i, n){ if(bb.exist(a[i])){ vll ans; ll len = bb.basis.size(); ll cur = a[i]; rep(j, len){ if((cur ^ bb.basis[j]) < cur){ cur = cur ^ bb.basis[j]; ans.push_back(idx[bb.original[j]]); } } ans.push_back(i + 1); out(ans.size()); out(ans); return; } idx[a[i]] = i + 1; bb.add(a[i]); } out(-1); } int main(){ ios::sync_with_stdio(false); cin.tie(nullptr); cout << fixed << setprecision(20); input(); solve(); }