結果

問題 No.2236 Lights Out On Simple Graph
ユーザー AngrySadEightAngrySadEight
提出日時 2023-03-03 23:25:34
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 2,071 ms / 4,000 ms
コード長 6,048 bytes
コンパイル時間 7,301 ms
コンパイル使用メモリ 318,008 KB
実行使用メモリ 124,556 KB
最終ジャッジ日時 2023-10-18 03:40:46
合計ジャッジ時間 56,897 ms
ジャッジサーバーID
（参考情報） 		judge13 / judge11
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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
4,348 KB
testcase_01 AC 2 ms
4,348 KB
testcase_02 AC 1 ms
4,348 KB
testcase_03 AC 2,025 ms
124,556 KB
testcase_04 AC 1,213 ms
107,424 KB
testcase_05 AC 2 ms
4,348 KB
testcase_06 AC 1,548 ms
124,556 KB
testcase_07 AC 1,302 ms
88,380 KB
testcase_08 AC 2 ms
4,348 KB
testcase_09 AC 2 ms
4,348 KB
testcase_10 AC 353 ms
30,884 KB
testcase_11 AC 58 ms
8,624 KB
testcase_12 AC 483 ms
37,620 KB
testcase_13 AC 28 ms
7,072 KB
testcase_14 AC 1,065 ms
72,004 KB
testcase_15 AC 22 ms
6,548 KB
testcase_16 AC 46 ms
9,700 KB
testcase_17 AC 120 ms
17,028 KB
testcase_18 AC 4 ms
4,348 KB
testcase_19 AC 118 ms
16,004 KB
testcase_20 AC 922 ms
63,800 KB
testcase_21 AC 122 ms
16,004 KB
testcase_22 AC 2,071 ms
124,556 KB
testcase_23 AC 1,967 ms
124,556 KB
testcase_24 AC 1,099 ms
72,004 KB
testcase_25 AC 307 ms
28,768 KB
testcase_26 AC 1,973 ms
124,556 KB
testcase_27 AC 928 ms
63,800 KB
testcase_28 AC 1,594 ms
107,424 KB
testcase_29 AC 125 ms
16,004 KB
testcase_30 AC 1,995 ms
124,556 KB
testcase_31 AC 2,060 ms
124,556 KB
testcase_32 AC 2,030 ms
124,556 KB
testcase_33 AC 1,992 ms
124,556 KB
testcase_34 AC 1,916 ms
124,556 KB
testcase_35 AC 1,703 ms
115,684 KB
testcase_36 AC 1,051 ms
81,252 KB
testcase_37 AC 1,949 ms
124,556 KB
testcase_38 AC 519 ms
47,076 KB
testcase_39 AC 396 ms
44,920 KB
testcase_40 AC 471 ms
39,008 KB
testcase_41 AC 76 ms
12,044 KB
testcase_42 AC 531 ms
41,844 KB
testcase_43 AC 20 ms
5,748 KB
testcase_44 AC 1,069 ms
75,444 KB
testcase_45 AC 1,708 ms
115,684 KB
testcase_46 AC 1,247 ms
80,196 KB
testcase_47 AC 1,650 ms
115,684 KB
testcase_48 AC 1,342 ms
88,380 KB
testcase_49 AC 1,279 ms
88,380 KB
testcase_50 AC 12 ms
4,348 KB
testcase_51 AC 243 ms
24,616 KB
testcase_52 AC 14 ms
4,700 KB
testcase_53 AC 2 ms
4,348 KB
testcase_54 AC 725 ms
49,836 KB
testcase_55 AC 533 ms
45,756 KB
testcase_56 AC 465 ms
44,920 KB
testcase_57 AC 588 ms
46,020 KB
testcase_58 AC 447 ms
44,920 KB
testcase_59 AC 449 ms
44,920 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")


#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
typedef long long ll;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define repr(i, n) for (int i = (int)(n) - 1; i >= 0; i--)
#define repk(i, k, n) for (int i = k; i < (int)(n); i++)
#define all(v) v.begin(), v.end()
#define mod1 1000000007
#define mod2 998244353
#define mod3 100000007
#define vi vector<int>
#define vs vector<string>
#define vc vector<char>
#define vl vector<ll>
#define vb vector<bool>
#define vvi vector<vector<int>>
#define vvc vector<vector<char>>
#define vvl vector<vector<ll>>
#define vvb vector<vector<bool>>
#define vvvi vector<vector<vector<int>>>
#define vvvl vector<vector<vector<ll>>>
#define pii pair<int,int>
#define pil pair<int,ll>
#define pli pair<ll, int>
#define pll pair<ll, ll>
#define vpii vector<pair<int,int>>
#define vpll vector<pair<ll,ll>>
#define vvpii vector<vector<pair<int,int>>>
#define vvpll vector<vector<pair<ll,ll>>>

template<typename T> void debug(T e){
    cerr << e << endl;
}

template<typename T> void debug(vector<T> &v){
    rep(i, v.size()){
        cerr << v[i] << " ";
    }
    cerr << endl;
}

template<typename T> void debug(vector<vector<T>> &v){
    rep(i, v.size()){
        rep(j, v[i].size()){
            cerr << v[i][j] << " ";
        }
        cerr << endl;
    }
}

template<typename T> void debug(vector<pair<T, T>> &v){
    rep(i,v.size()){
        cerr << v[i].first << " " << v[i].second << endl;
    }
}

template<typename T> void debug(set<T> &st){
    for (auto itr = st.begin(); itr != st.end(); itr++){
        cerr << *itr << " ";
    }
    cerr << endl;
}

template<typename T> void debug(multiset<T> &ms){
    for (auto itr = ms.begin(); itr != ms.end(); itr++){
        cerr << *itr << " ";
    }
    cerr << endl;
}

template<typename T> void debug(map<T, T> &mp){
    for (auto itr = mp.begin(); itr != mp.end(); itr++){
        cerr << itr->first << " " << itr->second << endl;
    }
}

void debug_out(){
    cerr << endl;
}

template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T){
    cerr << H << " ";
    debug_out(T...);
}

void dijkstra(vvpll &graph, ll v, vl &dist, vl &cnt){
    priority_queue<pll, vpll, greater<pll>> pque;
    vector<bool> decided(graph.size());
    pque.push(pll(0, v));
    cnt[v] = 1;
    dist[v] = 0;
    while(pque.size()){
        pll p = pque.top();
        pque.pop();
        if (dist[p.second] < p.first){
            continue;
        }
        decided[p.second] = true;
        for (auto x: graph[p.second]){
            if (dist[x.first] + x.second == dist[p.second] && decided[x.first]){
                cnt[p.second] = (cnt[p.second] + cnt[x.first]) % mod1;
            }
        }
        for (auto x: graph[p.second]){
            if (dist[x.first] > dist[p.second] + x.second){
                dist[x.first] = dist[p.second] + x.second;
                pque.push(pll(dist[x.first], x.first));
            }
        }
    }
}



int main(){
    ll N, M;
    cin >> N >> M;
    vl a(M);
    vl b(M);
    rep(i,M){
        cin >> a[i] >> b[i];
        a[i]--;
        b[i]--;
    }
    vl c(N);
    rep(i,N) cin >> c[i];

    ll ans = M + 1;
    
    if (M <= 2){
        for (ll i = 0; i < (1 << M); i++){
            vl cnt(N, 0);
            rep(j, N) cnt[j] = c[j];
            ll popcnt = 0;
            for (ll j = 0; j < M; j++){
                if ((i >> j) & 1){
                    cnt[a[j]] ^= 1;
                    cnt[b[j]] ^= 1;
                    popcnt++;
                }
            }
            bool pos = true;
            rep(j, N){
                if (cnt[j] == 1) pos = false;
            }
            if (pos){
                ans = min(ans, popcnt);
            }
        }
    }
    else{
        ll c_bit = 0;
        for (ll i = 0; i < N; i++){
            if (c[i] == 1) c_bit += (1LL << i);
        }
        vpll former(0);
        vpll latter(0);
        for (ll i = 0; i < (1LL << (M / 2)); i++){
            ll pop_cnt = 0;
            vl change(N, 0);
            for (ll j = 0; j < (M / 2); j++){
                if ((i >> j) & 1){
                    pop_cnt++;
                    change[a[j]] ^= 1;
                    change[b[j]] ^= 1;
                }
            }
            ll change_bit = 0;
            for (ll j = 0; j < N; j++){
                if (change[j] == 1){
                    change_bit += (1LL << j);
                }
            }
            former.push_back(pll(pop_cnt, change_bit));
        }
        for (ll i = 0; i < (1LL << (M - M / 2)); i++){
            ll pop_cnt = 0;
            vl change(N, 0);
            for (ll j = 0; j < (M - M / 2); j++){
                if ((i >> j) & 1){
                    pop_cnt++;
                    change[a[j + M / 2]] ^= 1;
                    change[b[j + M / 2]] ^= 1;
                }
            }
            ll change_bit = 0;
            for (ll j = 0; j < N; j++){
                if (change[j] == 1){
                    change_bit += (1LL << j);
                }
            }
            latter.push_back(pll(pop_cnt, change_bit));
        }
        unordered_map<ll, ll> lattmap;
        for (ll i = 0; i < latter.size(); i++){
            if (lattmap[latter[i].second] == 0) lattmap[latter[i].second] = latter[i].first;
            else lattmap[latter[i].second] = min(lattmap[latter[i].second], latter[i].first);
        }
        //debug(c_bit);
        for (ll i = 0; i < former.size(); i++){
            //debug_out(former[i].second, former[i].first, lattmap[former[i].second ^ c_bit]);
            if ((former[i].second ^ c_bit) == 0) ans = min(ans, former[i].first);
            else{
                if (lattmap[former[i].second ^ c_bit] >= 1){
                    ans = min(ans, former[i].first + lattmap[former[i].second ^ c_bit]);
                }
            }
        }
    }
    if (ans == M + 1) cout << -1 << endl;
    else cout << ans << endl;
}
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