結果
| 問題 |
No.130 XOR Minimax
|
| コンテスト | |
| ユーザー |
kei
|
| 提出日時 | 2020-01-11 01:24:20 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 101 ms / 5,000 ms |
| コード長 | 2,804 bytes |
| コンパイル時間 | 1,795 ms |
| コンパイル使用メモリ | 175,772 KB |
| 実行使用メモリ | 29,864 KB |
| 最終ジャッジ日時 | 2024-09-12 22:53:49 |
| 合計ジャッジ時間 | 3,861 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 21 |
ソースコード
#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int INF = 1e9;
const ll LINF = 1e18;
inline ll gcd(ll a, ll b) { return b ? gcd(b, a%b) : a; }
inline ll lcm(ll a, ll b) { return a / gcd(a, b)*b; }
template<class S,class T> ostream& operator << (ostream& out,const pair<S,T>& o){ out << "(" << o.first << "," << o.second << ")"; return out; }
template<class T> ostream& operator << (ostream& out,const vector<T>& V){ for(int i = 0; i < V.size(); i++){ out << V[i]; if(i!=V.size()-1) out << " ";} return out; }
template<class T> ostream& operator << (ostream& out,const vector<vector<T> >& Mat){ for(int i = 0; i < Mat.size(); i++) { if(i != 0) out << endl; out << Mat[i];} return out; }
template<class S,class T> ostream& operator << (ostream& out,const map<S,T>& mp){ out << "{ "; for(auto it = mp.begin(); it != mp.end(); it++){ out << it->first << ":" << it->second; if(mp.size()-1 != distance(mp.begin(),it)) out << ", "; } out << " }"; return out; }
template<typename T>vector<T> make_v(size_t a){return vector<T>(a);}
template<typename T,typename... Ts>auto make_v(size_t a,Ts... ts){return vector<decltype(make_v<T>(ts...))>(a,make_v<T>(ts...));}
template<typename T,typename V> typename enable_if<is_class<T>::value==0>::type fill_v(T &t,const V &v){t=v;}
template<typename T,typename V> typename enable_if<is_class<T>::value!=0>::type fill_v(T &t,const V &v){for(auto &e:t) fill_v(e,v);}
/*
<url:>
問題文============================================================
=================================================================
解説=============================================================
================================================================
*/
template<class Type>
Type solve(Type res = Type()){
ll n; cin >> n;
vector<ll> a(n); for(auto& in:a) cin >> in;
sort(a.begin(),a.end());
res = *max_element(a.begin(), a.end());
function<void(ll,ll,vector<ll>&)> dfs = [&](ll b,ll S,vector<ll>& a){
vector<ll> L,R;
if(b == -1){
res = min(res,S);
return;
}
for(int i = 0; i < (int)a.size(); i++){
if((a[i]>>b)&1){
L.push_back(a[i]-(1LL<<b));
}else{
R.push_back(a[i]);
}
}
if(L.size() && R.empty()){
dfs(b-1,S,L);
}else if(L.empty() && R.size()){
dfs(b-1,S,R);
}else{
// 1
dfs(b-1,S+(1LL<<b),L);
// 0
dfs(b-1,S+(1LL<<b),R);
}
};
dfs(31,0,a);
return res;
}
int main(void) {
cin.tie(0); ios_base::sync_with_stdio(false);
// solve(0);
cout << fixed << setprecision(15) << solve<ll>() << endl;
return 0;
}
kei