結果
| 問題 |
No.1638 Robot Maze
|
| コンテスト | |
| ユーザー |
sak
|
| 提出日時 | 2021-06-26 15:45:55 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 3,247 bytes |
| コンパイル時間 | 2,747 ms |
| コンパイル使用メモリ | 216,808 KB |
| 最終ジャッジ日時 | 2025-01-22 13:33:07 |
|
ジャッジサーバーID (参考情報) |
judge2 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| sample | WA * 2 RE * 1 |
| other | RE * 49 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> p_ll;
template<class T>
void debug(T itr1, T itr2) { auto now = itr1; while(now<itr2) { cout << *now << " "; now++; } cout << endl; }
#define repr(i,from,to) for (ll i=(ll)from; i<(ll)to; i++)
#define all(vec) vec.begin(), vec.end()
#define rep(i,N) repr(i,0,N)
#define per(i,N) for (ll i=(ll)N-1; i>=0; i--)
#define popcount __builtin_popcount
const ll LLINF = pow(2,61)-1;
const ll INF = pow(2,30)-1;
ll gcd(ll a, ll b) { if (a<b) swap(a,b); return b==0 ? a : gcd(b, a%b); }
ll lcm(ll a, ll b) { return a/gcd(a,b)*b; }
// ----------------------------------------------------------------------
// ----------------------------------------------------------------------
struct dijkstra2d {
ll N, M;
struct edge { p_ll to; ll d; };
vector<vector<vector<edge>>> adj;
vector<vector<ll>> minlen;
dijkstra2d(ll n, ll m) {
N = n; M = m;
adj.resize(N); rep(i,N) adj[i].resize(M);
minlen.resize(N); rep(i,N) minlen[i].assign(M,LLINF);
}
void add_edge(p_ll from, p_ll to, ll d) {
adj[from.first][from.second].push_back({to,d});
}
vector<vector<ll>> calc(ll n=0, ll m=0) {
auto c = [](const pair<p_ll, ll> &x, const pair<p_ll, ll> &y){return x.second>y.second;};
priority_queue<pair<p_ll, ll>, vector<pair<p_ll, ll>>, decltype(c)> q(c);
minlen[n][m] = 0; q.push(make_pair(make_pair(n,m),0));
while(q.size()) {
pair<p_ll, ll> now = q.top(); q.pop();
p_ll np = now.first;
ll np1 = np.first, np2 = np.second;
ll nd = now.second;
if (nd>minlen[np1][np2]) continue;
for (auto x: adj[np1][np2]) {
ll xt1 = x.to.first, xt2 = x.to.second;
if (minlen[xt1][xt2]<=minlen[np1][np2]+x.d) continue;
q.push(make_pair(make_pair(xt1, xt2), minlen[np1][np2]+x.d));
minlen[xt1][xt2] = minlen[np1][np2]+x.d;
}
}
return minlen;
}
};
// ----------------------------------------------------------------------
// ----------------------------------------------------------------------
int main() {
ll H, W; cin >> H >> W;
ll U, D, R, L, K; cin >> U >> D >> R >> L >> K;
ll cost = (D+1)*(R+1)*(U+1)*(L+1);
string C[H]; rep(i,H) cin >> C[i];
ll xs, ys, xt, yt; cin >> xs >> ys >> xt >> yt; xs--; ys--; xt--; yt--;
dijkstra2d dk(H,W);
rep(i,H) rep(j,W) {
if (i!=H-1) {
if (C[i+1][j]=='.') dk.add_edge(make_pair(i,j), make_pair(i+1,j), D);
else if (C[i+1][j]=='@') dk.add_edge(make_pair(i,j), make_pair(i+1,j), cost+D);
if (C[i][j]=='.') dk.add_edge(make_pair(i+1,j), make_pair(i,j), U);
else if (C[i][j]=='@') dk.add_edge(make_pair(i+1,j), make_pair(i,j), cost+U);
}
if (j!=W-1) {
if (C[i][j+1]=='.') dk.add_edge(make_pair(i,j), make_pair(i,j+1), R);
else if (C[i][j+1]=='@') dk.add_edge(make_pair(i,j), make_pair(i,j+1), cost+R);
if (C[i][j]=='.') dk.add_edge(make_pair(i,j+1), make_pair(i,j), L);
else if (C[i][j]=='@') dk.add_edge(make_pair(i,j+1), make_pair(i,j), cost+L);
}
}
vector<vector<ll>> d = dk.calc(xs,ys);
// for (auto x: d) debug(all(x));
string result = d[xt][yt]<=K ? "Yes" : "No";
cout << result << endl;
return 0;
}
sak