結果

問題 No.130 XOR Minimax
ユーザー firiexp
提出日時 2019-10-31 01:02:58
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
CE  
(最新)
AC  
(最初)
実行時間 -
コード長 1,319 bytes
コンパイル時間 659 ms
コンパイル使用メモリ 85,680 KB
最終ジャッジ日時 2024-11-14 21:48:46
合計ジャッジ時間 1,119 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge2
このコードへのチャレンジ
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コンパイルエラー時のメッセージ・ソースコードは、提出者また管理者しか表示できないようにしております。（リジャッジ後のコンパイルエラーは公開されます）
ただし、clay言語の場合は開発者のデバッグのため、公開されます。

コンパイルメッセージ
main.cpp:17:39: error: '::numeric_limits' has not been declared
   17 | template<class T> constexpr T INF = ::numeric_limits<T>::max()/32*15+208;
      |                                       ^~~~~~~~~~~~~~
main.cpp:17:55: error: expected primary-expression before '>' token
   17 | template<class T> constexpr T INF = ::numeric_limits<T>::max()/32*15+208;
      |                                                       ^
main.cpp:17:61: error: no matching function for call to 'max()'
   17 | template<class T> constexpr T INF = ::numeric_limits<T>::max()/32*15+208;
      |                                                        ~~~~~^~
In file included from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/string:50,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/locale_classes.h:40,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/ios_base.h:41,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/ios:42,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/ostream:38,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/iostream:39,
                 from main.cpp:1:
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  254 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/stl_algobase.h:254:5: note:   template argument deduction/substitution failed:
main.cpp:17:61: note:   candidate expects 2 arguments, 0 provided
   17 | template<class T> constexpr T INF = ::numeric_limits<T>::max()/32*15+208;
      |                                                        ~~~~~^~
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/stl_algobase.h:300:5: note: candidate: 'templat

ソースコード

diff #
プレゼンテーションモードにする

#include <iostream>
#include <algorithm>
#include <iomanip>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <numeric>
#include <bitset>
#include <cmath>
static const int MOD = 1000000007;
using ll = long long;
using u32 = uint32_t;
using namespace std;
template<class T> constexpr T INF = ::numeric_limits<T>::max()/32*15+208;
struct Node {
    int val;
    Node *l, *r;
    Node() : val(0), l(nullptr), r(nullptr) {}
};
template<class T, size_t X>
struct Binarytrie {
    Node *root;
    Binarytrie() { root = new Node; }
    void add(const T b, int x = 1){
        Node *p = root;
        for (int i = X-1; i >= 0; --i) {
            bool f = (b >> i) & 1;
            if(!f && !p->l) p->l = new Node;
            if(f && !p->r) p->r = new Node;
            p = (f ? p->r : p->l);
        }
        p->val += x;
    }
};
int main() {
    int n;
    cin >> n;
    Binarytrie<int, 31> tree;
    for (int i = 0; i < n; ++i) {
        int x;
        scanf("%d", &x);
        tree.add(x);
    }
    auto rec = [&](int X, Node* p, auto &&f) -> int {
        if(!p) return 0;
        if(!p->l) return f(X-1, p->r, f);
        if(!p->r) return f(X-1, p->l, f);
        return min(f(X-1, p->r, f), f(X-1, p->l, f)) + (1 << X);
    };
    cout << rec(30, tree.root, rec) << "\n";
    return 0;
}
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