제출 #972089

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
972089		steveonalex	Chameleon's Love (JOI20_chameleon)	C++17	40 / 100	15 ms	344 KiB

chameleon

#include <bits/stdc++.h>
#include "chameleon.h"
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
 
#define ALL(v) (v).begin(), (v).end()
#define MASK(i) (1LL << (i))
#define GETBIT(mask, i) (((mask) >> (i)) & 1)
 
// mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
mt19937_64 rng(1);
ll rngesus(ll l, ll r){return ((ull) rng()) % (r - l + 1) + l;}
 
ll max(ll a, ll b){return (a > b) ? a : b;}
ll min(ll a, ll b){return (a < b) ? a : b;}
 
ll LASTBIT(ll mask){return mask & (-mask);}
ll pop_cnt(ll mask){return __builtin_popcountll(mask);}
ll ctz(ll mask){return __builtin_ctzll(mask);}
ll clz(ll mask){return __builtin_clzll(mask);}
ll logOf(ll mask){return 63 - clz(mask);}
 
template <class T1, class T2>
    bool minimize(T1 &a, T2 b){
        if (a > b){a = b; return true;}
        return false;
    }
template <class T1, class T2>
    bool maximize(T1 &a, T2 b){
        if (a < b){a = b; return true;}
        return false;
    }
template <class T>
    void printArr(T& a, string separator = " ", string finish = "\n", ostream& out = cout){
        for(auto i: a) out << i << separator;
        out << finish;
    }
template <class T>
    void remove_dup(vector<T> &a){
        sort(ALL(a));
        a.resize(unique(ALL(a)) - a.begin());
    }

// namespace Grader{
//     int n;
//     vector<int> Y, C, L;
//     vector<int> check;
//     int o_cnt, ans;

//     int Query(const vector<int> &p){
//         o_cnt++;
//         vector<bool> state(n * 2 + 1);
//         for(int i: p) state[i] = 1;
//         vector<bool> color(n*2+1);
//         for(int i: p){
//             if (state[L[i]]) color[C[L[i]]] = 1;
//             else color[C[i]] = 1;
//         }

//         int ans = 0;
//         for(int i = 1; i<=2*n; ++i) ans += color[i];
//         return ans;
//     }

//     void Answer(int x, int y){
//         cout << "! " << x << " " << y << "\n";
//         if (C[x] != C[y]) ans = false;
//         check[x]++; check[y]++;
//     }

    void Solve(int n){
        vector<vector<int>> graph(n*2+1);
        for(int i = 1; i<=2*n; ++i) for(int j = i + 1; j<=2*n; ++j){
            vector<int> ask = {i, j};
            if (Query(ask) == 1) {
                graph[i].push_back(j);
                graph[j].push_back(i);
            }
        }

        for(int i = 1; i<=2*n; ++i) if (graph[i].size() != 1){
            pair<int, int> legit = {-1, -1};
            for(int j = 0; j < 3; ++j) for(int k = j + 1; k < 3; ++k){
                vector<int> ask = {i, graph[i][j], graph[i][k]};
                if (Query(ask) == 1) {
                    legit = {graph[i][j], graph[i][k]};
                    break;
                }
            }

            graph[i] = {legit.first, legit.second};
        }

        for(int i = 1; i<=2*n; ++i) sort(ALL(graph[i]));
        for(int i = 1; i<=2*n; ++i){
            for(int j: graph[i]) if (j > i){
                if (binary_search(ALL(graph[j]), i)) Answer(i, j);
            }
        }
    }

//     pair<bool, int> run_test(int _n){
//         n = _n;
//         Y.resize(n * 2 + 1); L = C = Y;
//         for(int i= 1; i<=2*n; ++i) cin >> Y[i];
//         for(int i= 1; i<=2*n; ++i) cin >> C[i];
//         for(int i= 1; i<=2*n; ++i) cin >> L[i];
//         o_cnt = 0; ans = 1;
//         check = vector<int>(2*n+1);

//         Solve(n);

//         if (*max_element(1+ALL(check)) != 1 || *min_element(1+ALL(check)) != 1) ans = false;
//         return {ans, o_cnt};
//     }
// }

// int main(void){
//     ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

//     int n; cin >> n;
//     pair<bool, int> verdict = Grader::run_test(n);
//     if (verdict.first) cout << "AC\n";
//     else cout << "WA\n";

//     cout << "Total operation count: " << verdict.second << "\n";

//     return 0;
// }

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