結果
| 問題 |
No.8063 幅優先探索
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2020-04-01 22:05:58 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,932 bytes |
| コンパイル時間 | 1,869 ms |
| コンパイル使用メモリ | 135,140 KB |
| 実行使用メモリ | 38,024 KB |
| 最終ジャッジ日時 | 2024-06-27 10:58:24 |
| 合計ジャッジ時間 | 2,470 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 5 WA * 4 |
ソースコード
#pragma GCC target ("avx")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define _USE_MATH_DEFINES
#include<iostream>
#include<string>
#include<queue>
#include<cmath>
#include<map>
#include<set>
#include<list>
#include<iomanip>
#include<vector>
#include<random>
#include<functional>
#include<algorithm>
#include<stack>
#include<cstdio>
#include<cstring>
#include<bitset>
#include<unordered_map>
#include<climits>
#include<fstream>
#include<complex>
#include<time.h>
#include<cassert>
#include<functional>
#include<numeric>
#include<tuple>
using namespace std;
using ll = int_fast64_t;
using ld = long double;
#define int ll
#define all(a) (a).begin(),(a).end()
#define fs first
#define sc second
#define xx first
#define yy second.first
#define zz second.second
#define H pair<int, int>
#define P pair<int, pair<int, int>>
#define Q(i,j,k) mkp(i,mkp(j,k))
#define rep(i,n) for(int (i) = 0 ; (i) < (n) ; (i)++)
#define rng(i,s,n) for(int (i) = (s) ; (i) < (n) ; (i)++)
#define req(n,i) for(int (i) = (n) - 1 ; (i) >= 0 ; (i)--)
#define range(i,v) for(auto& (i) : v)
#define mkp make_pair
#define mem(x,k) memset(x,k,sizeof(x))
#define vec vector
#define pb emplace_back
#define lb lower_bound
#define ub upper_bound
#define crdcomp(b) sort(all((b)));(b).erase(unique(all((b))),(b).end())
#define getidx(b,i) lower_bound(all(b),(i))-b.begin()
#define ssp(i,n) (i==(ll)(n)-1?"\n":" ")
#define ctoi(c) (int)(c-'0')
#define itoc(c) (char)(c+'0')
#define itn int
#define pri_que priority_queue
#define pp(x,y) pb(H{x,y})
#define ppp(x,y,z) pb(Q(x,y,z))
#define cdf int q810; cin>>q810; rep(q114,q810)
#define cyes cout<<"Yes\n"
#define cno cout<<"No\n"
//#define endl "\n"
constexpr int mod = 1e9 + 7;
constexpr int Mod = 998244353;
constexpr int MXN = 500000 + 100;
constexpr ld EPS = 1e-10;
constexpr ll inf = 3 * 1e18;
constexpr int Inf = 15 * 1e8;
const vec<int>dx{ -1,1,0,0 }, dy{ 0,0,-1,1 };
template<class T>bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; }
template<class T>bool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; }
ll read() { ll u, k = scanf("%lld", &u); return u; }
string reads() { string s; cin >> s; return s; }
H readh(bool g = 0) { H u; ll k = scanf("%lld %lld", &u.fs, &u.sc); if (g) u.fs--, u.sc--; return u; }
void printh(H t) { printf("%lld %lld\n", t.fs, t.sc); }
bool inarea(H t, int h, int w) { return 0 <= t.fs && t.fs < h && 0 <= t.sc && t.sc < w; }
ll gcd(ll i, ll j) { return j ? gcd(j, i % j) : i; }
ll mod_pow(ll x, ll n, ll p = mod) {
ll res = 1;
while (n > 0) {
if (n & 1) res = res * x % p;
x = x * x % p;
n >>= 1;
}
return res;
}//x^n%p
ll bitcount(ll x) {
int sum = 0; for (int i = 0; i < 60; i++)if ((1ll << i) & x) sum++;
return sum;
}
/*constexpr int fn_ = 1000005;
ll fact_[fn_], comp_[fn_];
ll comb(ll x, ll y, ll Mod = mod) {
if (!fact_[0]) {
fact_[0] = 1; comp_[0] = 1;
for (int i = 1; i < fn_; i++)
fact_[i] = fact_[i - 1] * i % Mod;
comp_[fn_ - 1] = mod_pow(fact_[fn_ - 1], Mod - 2, Mod);
for (int i = fn_ - 2; i > 0; i--)
comp_[i] = comp_[i + 1] * (i + 1) % Mod;
}
if (x < y) return 0;
return fact_[x] * comp_[x - y] % Mod * comp_[y] % Mod;
}*/
//--------------------------------------------------------------
int dp[4000][4000];
string s[4000];
signed main() {
int r, c;
H a, b;
cin >> r >> c;
cin >> a.fs >> a.sc;
cin >> b.fs >> b.sc;
a.fs--; a.sc--; b.fs--; b.sc--;
rep(i, r) {
cin >> s[i];
rep(j, c) dp[i][j] = inf;
}
queue<H>q;
q.push(a);
dp[a.fs][a.sc] = 0;
while (!q.empty()) {
H t = q.front(); q.pop();
rep(j, 4) {
H k = H{ t.fs + dx[j],t.sc + dy[j] };
if (!inarea(k, r, c)) continue;
if (s[k.fs][k.sc] == '#') continue;
if (dp[k.fs][k.sc] > dp[t.fs][t.sc] + 1) {
dp[k.fs][k.sc] = dp[t.fs][t.sc] + 1;
q.push(k);
}
}
}
cout << dp[b.fs][b.sc] << endl;
}