結果
| 問題 |
No.1638 Robot Maze
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2021-08-22 23:24:04 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 6 ms / 2,000 ms |
| コード長 | 3,254 bytes |
| コンパイル時間 | 2,704 ms |
| コンパイル使用メモリ | 229,044 KB |
| 最終ジャッジ日時 | 2025-01-24 01:37:44 |
|
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 49 |
ソースコード
// clang-format off
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define mp make_pair
#define fst first
#define snd second
#define forn(i,n) for (int i = 0; i < int(n); i++)
#define forn1(i,n) for (int i = 1; i <= int(n); i++)
#define popcnt __builtin_popcountll
#define ffs __builtin_ffsll
#define ctz __builtin_ctzll
#define clz __builtin_clz
#define clzll __builtin_clzll
#define all(a) (a).begin(), (a).end()
using namespace std;
using namespace __gnu_pbds;
using uint = unsigned int;
using ll = long long;
using ull = unsigned long long;
using pii = pair<int,int>;
using pli = pair<ll,int>;
using pil = pair<int,ll>;
using pll = pair<ll,ll>;
template <typename T> using vec = vector<T>;
using vi = vec<int>;
using vl = vec<ll>;
template <typename T> using que = queue<T>;
template <typename T> using deq = deque<T>;
template <typename T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template <typename K, typename V> using ordered_map = tree<K, V, less<K>, rb_tree_tag, tree_order_statistics_node_update>;
template <typename T> T id(T b) {return b;};
template <typename T> void chmax(T &x, T y) {if (x < y) x = y;}
template <typename T> void chmin(T &x, T y) {if (x > y) x = y;}
template <typename S, typename K> bool contains(S &s, K k) { return s.find(k) != s.end(); }
template <typename T> bool getf(T flag, size_t i) { return (flag>>i) & 1; }
template <typename T> T setf(T flag, size_t i) { return flag | (T(1)<<i); }
template <typename T> T unsetf(T flag, size_t i) { return flag & ~(T(1)<<i); }
void fastio() { ios_base::sync_with_stdio(false); cin.tie(nullptr); }
constexpr ll TEN(int n) { if (n == 0) return 1LL; else return 10LL*TEN(n-1); }
// clang-format on
int main() {
fastio();
int h, w, u, d, r, l, p;
ll k;
cin >> h >> w >> u >> d >> r >> l >> k >> p;
int xs, ys, xt, yt;
cin >> xs >> ys >> xt >> yt;
xs--, ys--, xt--, yt--;
vec<string> grid(h);
forn(i, h) cin >> grid[i];
const ll INF = TEN(16);
auto idx = [&](int i, int j) {
return i * w + j;
};
const int n = h * w;
vi di = { -1, 0, 1, 0 };
vi dj = { 0, 1, 0, -1 };
auto ok = [&](int i, int j) {
return 0 <= i and i < h and 0 <= j and j < w and grid[i][j] != '#';
};
vi cost = { u, r, d, l };
vec<vec<pil>> g(n);
forn(i, h) {
forn(j, w) {
forn(k, 4) {
int newi = i + di[k];
int newj = j + dj[k];
if (ok(newi, newj)) {
int c = cost[k];
if (grid[newi][newj] == '@') c += p;
g[idx(i, j)].emplace_back(idx(newi, newj), c);
}
}
}
}
priority_queue<pli, vector<pli>, greater<pli>> q;
q.emplace(0, idx(xs, ys));
vl dist(n, INF);
while (!q.empty()) {
auto [c, u] = q.top();
q.pop();
if (dist[u] < c) continue;
for (auto [v, ec] : g[u]) {
if (c + ec >= dist[v]) continue;
dist[v] = c + ec;
q.emplace(dist[v], v);
}
}
cout << (dist[idx(xt, yt)] <= k ? "Yes" : "No") << endl;
return 0;
}