結果
問題 | No.424 立体迷路 |
ユーザー |
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提出日時 | 2018-12-10 00:33:58 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
RE
|
実行時間 | - |
コード長 | 2,613 bytes |
コンパイル時間 | 1,955 ms |
コンパイル使用メモリ | 177,788 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-09-16 15:41:40 |
合計ジャッジ時間 | 5,885 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | RE * 5 |
other | AC * 4 WA * 2 RE * 15 |
ソースコード
#include "bits/stdc++.h" using namespace std; typedef long long ll; typedef pair<int, int> pii; typedef pair<ll, ll> pll; const int INF = 1e9; const ll LINF = 1e18; inline ll gcd(ll a, ll b) { return b ? gcd(b, a%b) : a; } inline ll lcm(ll a, ll b) { return a / gcd(a, b)*b; } template<class S,class T> ostream& operator << (ostream& out,const pair<S,T>& o){ out << "(" << o.first << "," << o.second << ")"; return out; } template<class T> ostream& operator << (ostream& out,const vector<T> V){ for(int i = 0; i < V.size(); i++){ out << V[i]; if(i!=V.size()-1) out << " ";} return out; } template<class T> ostream& operator << (ostream& out,const vector<vector<T> > Mat){ for(int i = 0; i < Mat.size(); i++) { if(i != 0) out << endl; out << Mat[i];} return out; } template<class S,class T> ostream& operator << (ostream& out,const map<S,T> mp){ out << "{ "; for(auto it = mp.begin(); it != mp.end(); it++){ out << it->first << ":" << it->second; if(mp.size()-1 != distance(mp.begin(),it)) out << ", "; } out << " }"; return out; } /* <url:https://yukicoder.me/problems/no/424> 問題文============================================================ ================================================================= 解説============================================================= ================================================================ */ template<class T> T solve(T res){ int h,w; cin >> h >> w; pii s,g; cin >> s.first >> s.second >> g.first >> g.second; vector<vector<int>> b(h+2,vector<int>(w+2,INF)); for(int i = 1; i <= h;i++) for(int j = 1; j <= w; j++) cin >> b[i][j]; vector<vector<int>> ok(h+2,vector<int>(w+2,false)); queue<pii> q; q.push(s); int d[4] = {1,0,-1,0}; while(q.size()){ pii p = q.front(); q.pop(); if(ok[p.first][p.second]) continue; ok[p.first][p.second] = true; for(int k = 0; k < 4;k++){ int ny = p.first + d[k]; int nx = p.second + d[k^1]; if(abs(b[p.first][p.second]-b[ny][nx]) <= 1){ q.push(pii(ny,nx)); } if(b[p.first][p.second]>b[ny][nx]){ ny+=d[k]; nx+=d[k^1]; if(ny<0 || nx < 0 || ny >= h+1 || nx >= w+1) continue; if(b[p.first][p.second]==b[ny][nx]){ q.push(pii(ny,nx)); } } } } if(ok[g.first][g.second]) res = "YES"; else res = "NO"; return res; } int main(void) { cin.tie(0); ios_base::sync_with_stdio(false); cout << solve<string>("") << endl; return 0; }