結果

問題 No.1647 Travel in Mitaru city 2
ユーザー suta28407928suta28407928
提出日時 2021-08-14 13:14:49
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
WA  
実行時間 -
コード長 3,871 bytes
コンパイル時間 2,463 ms
コンパイル使用メモリ 194,920 KB
実行使用メモリ 35,680 KB
最終ジャッジ日時 2024-10-05 05:46:03
合計ジャッジ時間 10,828 ms
ジャッジサーバーID
(参考情報)
judge5 / judge1
このコードへのチャレンジ
(要ログイン)

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 1 ms
5,248 KB
testcase_01 WA -
testcase_02 AC 3 ms
5,248 KB
testcase_03 AC 3 ms
5,248 KB
testcase_04 AC 4 ms
5,248 KB
testcase_05 AC 3 ms
5,248 KB
testcase_06 AC 2 ms
5,248 KB
testcase_07 AC 5 ms
5,248 KB
testcase_08 AC 120 ms
32,668 KB
testcase_09 AC 113 ms
29,408 KB
testcase_10 AC 163 ms
32,720 KB
testcase_11 AC 110 ms
28,800 KB
testcase_12 AC 97 ms
22,480 KB
testcase_13 AC 128 ms
32,732 KB
testcase_14 AC 123 ms
33,532 KB
testcase_15 AC 124 ms
33,304 KB
testcase_16 AC 116 ms
31,444 KB
testcase_17 AC 94 ms
20,224 KB
testcase_18 AC 108 ms
25,216 KB
testcase_19 AC 102 ms
22,656 KB
testcase_20 AC 106 ms
25,320 KB
testcase_21 AC 113 ms
24,992 KB
testcase_22 AC 126 ms
34,104 KB
testcase_23 AC 130 ms
34,328 KB
testcase_24 AC 123 ms
26,892 KB
testcase_25 AC 117 ms
30,400 KB
testcase_26 AC 133 ms
34,412 KB
testcase_27 AC 128 ms
34,684 KB
testcase_28 AC 131 ms
35,680 KB
testcase_29 AC 139 ms
35,552 KB
testcase_30 AC 110 ms
25,208 KB
testcase_31 AC 133 ms
35,548 KB
testcase_32 AC 116 ms
29,676 KB
testcase_33 AC 135 ms
32,284 KB
testcase_34 AC 131 ms
35,548 KB
testcase_35 AC 124 ms
31,804 KB
testcase_36 AC 136 ms
35,552 KB
testcase_37 AC 137 ms
35,548 KB
testcase_38 AC 119 ms
28,624 KB
testcase_39 AC 103 ms
23,980 KB
testcase_40 AC 125 ms
28,296 KB
testcase_41 AC 122 ms
26,028 KB
testcase_42 AC 120 ms
28,520 KB
testcase_43 AC 2 ms
5,248 KB
testcase_44 AC 4 ms
7,936 KB
testcase_45 AC 94 ms
19,200 KB
testcase_46 WA -
testcase_47 AC 90 ms
19,200 KB
testcase_48 WA -
testcase_49 AC 92 ms
19,328 KB
testcase_50 AC 89 ms
19,328 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("Ofast")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
//#include <atcoder/all>
using namespace std;
//using namespace atcoder;
#define DEBUG
#ifdef DEBUG
template <class T, class U>
ostream &operator<<(ostream &os, const pair<T, U> &p) {
    os << '(' << p.first << ',' << p.second << ')';
    return os;
}
template <class T> ostream &operator<<(ostream &os, const vector<T> &v) {
    os << '{';
    for(int i = 0; i < (int)v.size(); i++) {
        if(i) { os << ','; }
        os << v[i];
    }
    os << '}';
    return os;
}
void debugg() { cerr << endl; }
template <class T, class... Args>
void debugg(const T &x, const Args &... args) {
    cerr << " " << x;
    debugg(args...);
}
#define debug(...)                                                             \
    cerr << __LINE__ << " [" << #__VA_ARGS__ << "]: ", debugg(__VA_ARGS__)
#define dump(x) cerr << __LINE__ << " " << #x << " = " << (x) << endl
#else
#define debug(...) (void(0))
#define dump(x) (void(0))
#endif
using namespace std;
typedef long long ll;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<char> vc;
typedef vector<string> vs;
typedef vector<bool> vb;
typedef vector<double> vd;
typedef pair<ll,ll> P;
typedef pair<int,int> pii;
typedef vector<P> vpl;
typedef tuple<ll,ll,ll> tapu;
#define rep(i,n) for(int i=0; i<(n); i++)
#define REP(i,a,b) for(int i=(a); i<(b); i++)
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
const int inf = (1<<30)-1;
const ll linf = 1LL<<61;
const int MAX = 25000000;
int dy[8] = {0,1,0,-1,1,-1,-1,1};
int dx[8] = {-1,0,1,0,1,-1,1,-1};
const double pi = acos(-1);
const double eps = 1e-7;
template<typename T1,typename T2> inline bool chmin(T1 &a,T2 b){
	if(a>b){
		a = b; return true;
	}
	else return false;
}
template<typename T1,typename T2> inline bool chmax(T1 &a,T2 b){
	if(a<b){
		a = b; return true;
	}
	else return false;
}
template<typename T> inline void print(T &a){
    int sz = a.size();
    for(auto itr = a.begin(); itr != a.end(); itr++){
		cout << *itr;
        sz--;
        if(sz) cout << " ";
	}
    cout << "\n";
}
template<typename T1,typename T2> inline void print2(T1 a, T2 b){
	cout << a << " " << b << "\n";
}
template<typename T1,typename T2,typename T3> inline void print3(T1 a, T2 b, T3 c){
	cout << a << " " << b << " " << c << "\n";
}
void mark() {cout << "#" << "\n";}
ll pcount(ll x) {return __builtin_popcountll(x);}
//const int mod = 1e9 + 7;
const int mod = 998244353;

int main(){
    int h,w,n; cin >> h >> w >> n;
    int N = h+w+n;
    vvl G(N);
    vl X(n),Y(n);
    rep(i,n){
        int x,y; cin >> x >> y; x--; y--;
        int z = h+w+i;
        G[x].push_back(z);
        G[z].push_back(x);
        G[h+y].push_back(z);
        G[z].push_back(h+y);
        X[i] = x, Y[i] = y;
    }
    vb visit(N,false);
    vl ans;
    bool f = true;
    int fi = -1;
    auto dfs = [&](auto &&dfs, int u, int p) -> bool {
        int vi = -1;
        visit[u] = true;
        for(auto v : G[u]){
            if(v == p) continue;
            if(visit[v]){
                vi = v;
                continue;
            }
            if(dfs(dfs,v,u)){
                if(f) ans.push_back(u);
                if(fi == u) f = false;
                return true;
            }
        }
        if(vi == -1) return false;
        ans.push_back(u);
        fi = vi;
        return true;
    };
    
    rep(i,n){
        if(dfs(dfs,h+w+i,-1)){
            vl as;
            for(auto x : ans) if(x >= h+w) as.push_back(x-h-w+1);
            int m = as.size();
            cout << m << "\n";
            if(X[as[0]-1] == X[as[1]-1]){
                rotate(as.rbegin(),as.rbegin()+1,as.rend());
            }
            rep(i,m) cout << as[i] << " \n"[i==m-1];
            return 0;
        }
    }
    cout << -1 << endl;
}
0