結果
問題 | No.2977 Kth Xor Pair |
ユーザー | akiaa11 |
提出日時 | 2024-12-06 18:41:07 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 4,504 bytes |
コンパイル時間 | 5,191 ms |
コンパイル使用メモリ | 276,628 KB |
実行使用メモリ | 64,012 KB |
最終ジャッジ日時 | 2024-12-06 18:42:30 |
合計ジャッジ時間 | 80,095 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
(要ログイン)
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
10,496 KB |
testcase_01 | AC | 2 ms
10,496 KB |
testcase_02 | AC | 15 ms
10,624 KB |
testcase_03 | AC | 15 ms
10,496 KB |
testcase_04 | AC | 16 ms
10,624 KB |
testcase_05 | AC | 16 ms
21,760 KB |
testcase_06 | AC | 16 ms
10,624 KB |
testcase_07 | AC | 1,673 ms
10,624 KB |
testcase_08 | TLE | - |
testcase_09 | AC | 2,797 ms
15,232 KB |
testcase_10 | AC | 2,794 ms
15,360 KB |
testcase_11 | AC | 2,902 ms
15,744 KB |
testcase_12 | AC | 2,824 ms
15,232 KB |
testcase_13 | TLE | - |
testcase_14 | AC | 1,644 ms
10,496 KB |
testcase_15 | AC | 2,604 ms
14,464 KB |
testcase_16 | TLE | - |
testcase_17 | TLE | - |
testcase_18 | TLE | - |
testcase_19 | TLE | - |
testcase_20 | TLE | - |
testcase_21 | TLE | - |
testcase_22 | TLE | - |
testcase_23 | TLE | - |
testcase_24 | TLE | - |
testcase_25 | TLE | - |
testcase_26 | TLE | - |
testcase_27 | AC | 1,266 ms
37,268 KB |
testcase_28 | AC | 576 ms
33,272 KB |
testcase_29 | AC | 739 ms
37,268 KB |
testcase_30 | AC | 1,069 ms
33,472 KB |
testcase_31 | AC | 995 ms
33,628 KB |
testcase_32 | AC | 889 ms
47,020 KB |
testcase_33 | AC | 938 ms
47,248 KB |
testcase_34 | AC | 935 ms
47,248 KB |
testcase_35 | AC | 935 ms
64,012 KB |
ソースコード
#include <bits/stdc++.h> #include <atcoder/all> #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #define SELECTER(_1,_2,_3,SELECT,...) SELECT #define rep1(i,n) for(int i=0;i<int(n);++i) #define rep2(i,a,n) for(int i=int(a);i<int(n);++i) #define rep(...) SELECTER(__VA_ARGS__,rep2,rep1)(__VA_ARGS__) #define RSELECTER(_1, _2, _3, RSELECT, ...) RSELECT #define rrep1(i,n) for(int i=(int)(n)-1;i>=0;--i) #define rrep2(i,a,n) for(int i=(int)(n)-1;i>=(int)a;--i) #define rrep(...) RSELECTER(__VA_ARGS__, rrep2, rrep1)(__VA_ARGS__) #define all(a) a.begin(),a.end() #define rall(a) a.rbegin(),a.rend() #define fi first #define se second #define PrintR LogOutput #ifdef _DEBUG #define Log(...) LogOutput(__VA_ARGS__) #else #define Log(...) #endif #define M_PI 3.14159265358979323846 using namespace std; using namespace atcoder; using ll=long long; using ld=long double; using pii=pair<int,int>; using pll=pair<long long,long long>; using pdd=pair<long double,long double>; using tp=tuple<int,int,int>; using tpll=tuple<ll,ll,ll>; using veci=vector<int>; using vecpii=vector<pair<int,int>>; using vecll=vector<long long>; using vecpll=vector<pair<long long,long long>>; using vecpdd=vector<pair<long double,long double>>; using vecs=vector<string>; using vecb=vector<bool>; using vecd=vector<long double>; using vectp=vector<tp>; using vectpll=vector<tpll>; using mint=modint998244353; using mint10=modint1000000007; template<typename T, typename S> istream& operator>>(istream& in, pair<T, S>& a){return in >> a.first >> a.second;} template<typename T, typename S> ostream& operator<<(ostream& out, const pair<T, S>& a){return out << a.first << ' ' << a.second;} ostream& operator<<(ostream& out, const mint& a){return out << a.val();} ostream& operator<<(ostream& out, const mint10& a){return out << a.val();} ostream& operator<<(ostream& out, const modint& a){return out << a.val();} template<typename T> ostream& operator<<(ostream& out, const vector<T>& d){for(int i = 0 ; i < d.size() ; ++i) out << d[i] << (i == d.size() - 1 ? "" : " "); return out;} template<typename T, typename S> pair<T, S> operator+(const pair<T, S>& a, const pair<T, S>& b){return {a.fi + b.fi, a.se + b.se};} template<typename T, typename S> pair<T, S> operator-(const pair<T, S>& a, const pair<T, S>& b){return {a.fi - b.fi, a.se - b.se};} template<class T> inline bool chmax(T& a,T b){if(a<b) {a=b;return true;} return false;} template<class T> inline bool chmin(T& a,T b){if(a>b) {a=b;return true;} return false;} bool Judge(int i, int j, int h, int w){return i < 0 || j < 0 || i >= h || j >= w;} bool PrintA(int i){cout<<(i ? "Yes" : "No")<<endl;return i;} constexpr ll INF=numeric_limits<ll>::max() >> 2; constexpr int inf=numeric_limits<int>::max() >> 1; constexpr ll MOD=998244353; const int vi[] = {0, 1, 0, -1}, vj[] = {1, 0, -1, 0}; template<typename... Args> void LogOutput(Args&&... args){ stringstream ss; ((ss << args << ' '), ...); cout << ss.str().substr(0, ss.str().length() - 1) << endl; } template<typename T> void LogOutput(vector<vector<T>>& data){for(auto d : data) LogOutput(d);} int main(){ ios::sync_with_stdio(false); std::cin.tie(nullptr); int n; ll k;cin>>n>>k; veci a(n); rep(i, n) cin>>a[i]; { map<ll, int> mp; rep(i, n) mp[a[i]]++; ll cnt = 0; for(auto v : mp) cnt += ll(v.se) * (v.se - 1) / 2; if(cnt >= k){ cout<<0<<endl; return 0; } } auto rec = [&](auto f, veci l, veci r, int i, int bs, int u = 0) -> ll{ if(i == -1){ if(!u) return 1LL * l.size() * r.size(); return (ll(l.size()) - 1) * l.size() / 2; } if(l.empty()) return 0; if(!u && r.empty()) return 0; veci a, b; rep(j, l.size()){ if(l[j] >> i & 1) b.push_back(l[j]); else a.push_back(l[j]); } ll res = 0; if(!u){ veci c, d; rep(j, r.size()){ if(r[j] >> i & 1) d.push_back(r[j]); else c.push_back(r[j]); } if(bs >> i & 1){ res = 1LL * a.size() * c.size() + 1LL * b.size() * d.size(); res += f(f, a, d, i - 1, bs) + f(f, b, c, i - 1, bs); }else{ res = f(f, a, c, i - 1, bs) + f(f, b, d, i - 1, bs); } }else{ if(bs >> i & 1){ res = (ll(a.size()) - 1) * a.size() / 2 + (ll(b.size() - 1)) * b.size() / 2; res += f(f, a, b, i - 1, bs); }else{ res += f(f, a, {}, i - 1, bs, u) + f(f, b, {}, i - 1, bs, u); } } return res; }; int l = 0, r = inf; while(r - l > 1){ int mid = (l + r) / 2; if(rec(rec, a, {}, 30, mid, 1) >= k) r = mid; else l = mid; } cout<<r<<endl; }