結果
問題 | No.2301 Namorientation |
ユーザー |
![]() |
提出日時 | 2023-05-12 21:53:28 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,253 bytes |
コンパイル時間 | 2,653 ms |
コンパイル使用メモリ | 189,808 KB |
実行使用メモリ | 21,928 KB |
最終ジャッジ日時 | 2024-11-28 18:01:06 |
合計ジャッジ時間 | 13,242 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 10 WA * 20 |
ソースコード
#define _USE_MATH_DEFINES#pragma GCC target("avx2")#pragma GCC optimize("O3")#define _USE_MATH_DEFINES#include<bits/stdc++.h>#include<unordered_map>#include<random>#include <array>#include <complex>using namespace std;#define LP(I,S,G) for (long long int I = (S); I < (G); ++I)#define IN(X) for (int in = 0; in < X.size(); in++)cin >> X[in]#define OUT(X) for (int in = 0; in < X.size(); in++)cout << X[in]<<" "#define SORT(X) sort((X).begin(), (X).end())#define CSORT(X,Y) sort(X.begin(), X.end(),Y)#define COPY(X,Y) copy(X.begin(), X.end(), Y.begin())#define ALL(X,Y) for (auto X = (Y).begin(); X != (Y).end(); X++)#define FULL(a) (a).begin(),(a).end()#define BFS(Q,S) for(Q.push(S);Q.size()!=0;Q.pop())typedef long long int ll;typedef unsigned long long int ull;long long int M = 998244353;int dx[] = { -1,0,1,0 }, dy[] = { 0,1,0,-1 };ll MAX(ll A, ll B) { return ((A) > (B) ? (A) : (B)); }ll MIN(ll A, ll B) { return ((A) < (B) ? (A) : (B)); }inline long long int xor128() {static long long int x = 123456789, y = 362436069, z = 521288629, w = 88675123;long long int t = (x ^ (x << 11));x = y; y = z; z = w;return (w = (w ^ (w >> 19)) ^ (t ^ (t >> 8)));}int main() {ll n;cin >> n;vector<ll> u(n), v(n);vector<ll> ans(n, 0);vector<vector<ll>> g(n);LP(i, 0, n) {cin >> u[i] >> v[i];u[i]--, v[i]--;g[u[i]].push_back(i);g[v[i]].push_back(i);}queue<ll> q;LP(i, 0, n) {if (g[i].size() == 1)q.push(i);}while (q.size() != 0) {ll now = q.front();q.pop();ALL(i, g[now]) {ll gu = u[*i], gv = v[*i];ll d = 1;if (gv == now) {swap(gu, gv);d *= -1;}if (ans[*i] == 0) {ans[*i] = d;if (g[gv].size() < 3)q.push(gv);}}}LP(now, 0, n) {ALL(i, g[now]) {ll gu = u[*i], gv = v[*i];ll d = 1;if (gv == now) {swap(gu, gv);d *= -1;}if (ans[*i] == 0) {ans[*i] = d;q.push(gv);break;}}}while (q.size() != 0) {ll now = q.front();q.pop();ALL(i, g[now]) {ll gu = u[*i], gv = v[*i];ll d = 1;if (gv == now) {swap(gu, gv);d *= -1;}if (ans[*i] == 0) {ans[*i] = d;}}}LP(i, 0, n)cout << ((ans[i] == 1) ? "->" : "<-")<<"\n";return 0;}