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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#343761#1817. AND PermutationLaStataleBlueWA 1ms3652kbC++233.3kb2024-03-03 00:58:132024-03-03 00:58:14

Judging History

你现在查看的是最新测评结果

  • [2024-03-03 00:58:14]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:3652kb
  • [2024-03-03 00:58:13]
  • 提交

answer

#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
typedef long double db;

#define TESTCASE 0

static void solve([[maybe_unused]] int tc) {
    int n;
    cin >> n;
    vector<long long> a(n);
    
    for (int i = 0; i < n; i++)cin >> a[i];
    sort(a.begin(),a.end());
    if (n == 1) {
        cout << "0\n";
        return;
    }
    
    auto solve = [&](auto &solve, int pos, vector<long long> v) -> map<long long, long long> {
        if (v.size() == 0) {
            return map<long long, long long>();
        }
        if (v.size() == 2) {
            return map<long long, long long>{{v[0], v[1]},
                {v[1], v[0]}};
        }
        if (v.size() == 1) {
            return map<long long, long long>{{v[0], v[0]}};
        }
        
        map<long long, long long> res;
        
        vector<long long> v0, v1;
        for (auto i: v) {
            if (i & (1ll << pos))v1.push_back(i);
            else v0.push_back(i);
        }
        
        map<long long, long long> sol0, sol1;
        sol0 = solve(solve, pos - 1, v0);
        sol1 = solve(solve, pos - 1, v1);
        
        map<long long, int> col;
        auto dfs = [&](auto &dfs, long long pos, int mode) -> void {
            //cout << pos << " dfs\n";
            if (col.find(pos) != col.end())return;
            col[pos] = mode;
            
            dfs(dfs, sol1[pos], mode ^ 1);
            
            if (sol0.find(pos ^ (1ll << pos)) != sol0.end())
                if (sol1.find(sol0[pos ^ (1ll << pos)] ^ (1ll << pos)) != sol1.end()) {
                dfs(dfs, sol0[pos ^ (1ll << pos)] ^ (1ll << pos), mode ^ 1);
            }
        };
        
        int loop0 = -1, loop1 = -1;
        
        for (auto [i, j]: sol0) {
            if (i == j)loop0 = i;
        }
        for (auto [i, j]: sol1) {
            if (i == j)loop1 = i;
        }
        
        
        for (auto i: v1)if (sol1[i] != i || (loop0==-1))dfs(dfs, i, 1);
        
        
        if (loop0 != -1 && loop1 != -1) {
            sol0[loop0] = loop1;
            sol1[loop1] = loop0;
            loop0 = -1;
            loop1 = -1;
        }
        
        for (auto [i, j]: sol1) {
            if (col[i] == 1) {
                if(i==j){
                    int a=i^(1ll<<pos);
                    int b=sol0[a];
                    
                    sol1[i]=b;
                    sol0[b]=i;
                    sol0[a]=a;
                    continue;
                }
                int a = i ^ (1ll << pos);
                int b = sol0[a];
                sol1[i] = b;
                sol1[j] = a;
                sol0[a] = j;
                sol0[b] = i;
            }
        }
        
        
        for (auto [i, j]: sol0)res[i] = j;
        for (auto [i, j]: sol1)res[i] = j;
        return res;
    };    
    auto sol = solve(solve, 59, a);
    
    for (int i = 0; i < n; i++) {
        cout << sol[a[i]] << "\n";
        assert((a[i]&sol[a[i]])==0);
    }
}

int main() {
    //ios::sync_with_stdio(false);
    
    if (const char *f = getenv("REDIRECT_STDOUT"); f) {
        freopen(f, "w", stdout);
    }
    
    int T = 1;
#if TESTCASE
    cin >> T;
#endif
    
    for (int t = 1; t <= T; t++) {
        solve(t);
    }
    
    return 0;
}

详细

Test #1:

score: 0
Wrong Answer
time: 1ms
memory: 3652kb

input:

6
0
1
4
5
2
6

output:

4
6
5
0
2
1

result:

wrong answer Bit and of corresponding values not zero.