結果
| 問題 | No.34 砂漠の行商人 |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2024-09-28 18:31:52 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 2,713 bytes |
| コンパイル時間 | 5,642 ms |
| コンパイル使用メモリ | 297,048 KB |
| 最終ジャッジ日時 | 2025-02-24 14:00:57 |
|
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 |
|---|---|
| other | AC * 9 TLE * 1 -- * 16 |
ソースコード
// #pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using mint = modint998244353;
// using mint = modint1000000007;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using T = tuple<int, int, int>;
using G = vector<vector<int>>;
#define rep(i, n) for (ll i = 0; i < (n); ++i)
#define rep2(i, a, b) for (ll i = a; i < (b); ++i)
#define rrep2(i, a, b) for (ll i = a-1; i >= (b); --i)
#define rep3(i, a, b, c) for (ll i = a; i < (b); i+=c)
#define rng(a) a.begin(),a.end()
#define rrng(a) a.rbegin(),a.rend()
#define popcount __builtin_popcount
#define popcountll __builtin_popcountll
#define fi first
#define se second
#define UNIQUE(v) sort(rng(v)), v.erase(unique(rng(v)), v.end())
#define MIN(v) *min_element(rng(v))
#define MAX(v) *max_element(rng(v))
#define SUM(v) accumulate(rng(v),0)
#define IN(v, x) (find(rng(v),x) != v.end())
template<class T> bool chmin(T &a,T b){if(a>b){a=b;return 1;}else return 0;}
template<class T> bool chmax(T &a,T b){if(a<b){a=b;return 1;}else return 0;}
template<class T> void printv(vector<T> &v){rep(i,v.size())cout<<v[i]<<" \n"[i==v.size()-1];}
template<class T> void printvv(vector<vector<T>> &v){rep(i,v.size())rep(j,v[i].size())cout<<v[i][j]<<" \n"[j==v[i].size()-1];cout<<endl;}
const ll dx[] = {0, 1, 0, -1};
const ll dy[] = {1, 0, -1, 0};
const ll dxx[] = {0, 1, 0, -1, 1, -1, 1, -1};
const ll dyy[] = {1, 0, -1, 0, 1, 1, -1, -1};
const ll LINF = 1001002003004005006ll;
const int INF = 1001001001;
int main(){
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n, H, sx, sy, gx, gy; cin >> n >> H >> sy >> sx >> gy >> gx; sx--, sy--, gx--, gy--;
vector<vector<pii>> g(n*n);
rep(i, n)rep(j, n){
int l; cin >> l;
rep(t, 4){
int nx = i+dx[t], ny = j+dy[t];
if(nx < 0 || nx >= n || ny < 0 || ny >= n) continue;
g[nx*n+ny].emplace_back(i*n+j, l);
}
}
vector dist(n*n, vector<int>(H, INF)); dist[sx*n+sy][0] = 0;
priority_queue<T, vector<T>, greater<T>> pq;
pq.emplace(0, 0, sx*n+sy);
while(!pq.empty()){
auto [t, h, u] = pq.top(); pq.pop();
if (dist[u][h] < t) continue;
for(auto [v, w]: g[u]){
if (h+w >= H) continue;
if(dist[v][h+w] > dist[u][h]+1){
dist[v][h+w] = dist[u][h]+1;
pq.emplace(dist[v][h+w], h+w, v);
}
}
}
int ans = INF;
rep(i, H) chmin(ans, dist[gx*n+gy][i]);
cout << (ans == INF ? -1 : ans) << endl;
return 0;
}