結果
問題 | No.2928 Gridpath |
ユーザー | 寝癖 |
提出日時 | 2024-10-12 16:45:02 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 1,495 ms / 2,000 ms |
コード長 | 4,288 bytes |
コンパイル時間 | 4,722 ms |
コンパイル使用メモリ | 319,392 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-10-12 16:45:22 |
合計ジャッジ時間 | 13,418 ms |
ジャッジサーバーID (参考情報) |
judge / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 1 ms
5,248 KB |
testcase_02 | AC | 1,470 ms
5,248 KB |
testcase_03 | AC | 2 ms
5,248 KB |
testcase_04 | AC | 1 ms
5,248 KB |
testcase_05 | AC | 4 ms
5,248 KB |
testcase_06 | AC | 39 ms
5,248 KB |
testcase_07 | AC | 2 ms
5,248 KB |
testcase_08 | AC | 1 ms
5,248 KB |
testcase_09 | AC | 41 ms
5,248 KB |
testcase_10 | AC | 2 ms
5,248 KB |
testcase_11 | AC | 1 ms
5,248 KB |
testcase_12 | AC | 1 ms
5,248 KB |
testcase_13 | AC | 2 ms
5,248 KB |
testcase_14 | AC | 1 ms
5,248 KB |
testcase_15 | AC | 594 ms
5,248 KB |
testcase_16 | AC | 768 ms
5,248 KB |
testcase_17 | AC | 757 ms
5,248 KB |
testcase_18 | AC | 992 ms
5,248 KB |
testcase_19 | AC | 884 ms
5,248 KB |
testcase_20 | AC | 2 ms
5,248 KB |
testcase_21 | AC | 1,495 ms
5,248 KB |
testcase_22 | AC | 1,002 ms
5,248 KB |
ソースコード
#include <bits/stdc++.h> #include <atcoder/all> namespace neguse {} using namespace std; using namespace atcoder; using namespace neguse; typedef long long ll; typedef long double ld; typedef pair<int, int> pii; typedef pair<ll, ll> pll; typedef vector<int> vi; typedef vector<ll> vll; typedef vector<ld> vld; typedef vector<vi> vvi; typedef vector<vll> vvll; typedef vector<string> vs; typedef vector<pii> vpii; typedef vector<pll> vpll; #define _overload3(_1, _2, _3, name, ...) name #define _rep(i, n) repi(i, 0, n) #define repi(i, a, b) for (int i = int(a); i < int(b); ++i) #define rep(...) _overload3(__VA_ARGS__, repi, _rep, )(__VA_ARGS__) #define _rrep(i, n) rrepi(i, n - 1, -1) #define rrepi(i, a, b) for (int i = int(a); i > int(b); --i) #define rrep(...) _overload3(__VA_ARGS__, rrepi, _rrep)(__VA_ARGS__) #define _each1(i, v) for (auto &i : v) #define _each2(i, j, v) for (auto &[i, j] : v) #define each(...) _overload3(__VA_ARGS__, _each2, _each1, )(__VA_ARGS__) #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() #define SUM(x) accumulate(all(x), 0LL) #define MAX(x) *max_element(all(x)) #define MIN(x) *min_element(all(x)) #define ACC(x, acc) partial_sum(all(x), acc.begin()+1) #define SORT(x) sort(all(x)) #define RSORT(x) sort(rall(x)) #define REVERSE(x) reverse(all(x)) #define dump(x) cerr << #x << " = " << (x) << '\n' #define print(x) cout << (x) << '\n' #define yes(f) cout << ((f) ? "Yes" : "No") << '\n' #define ge(v, x) (int)(lower_bound(all(v), x) - v.begin()) #define gt(v, x) (int)(upper_bound(all(v), x) - v.begin()) #define le(v, x) (int)(upper_bound(all(v), x) - v.begin()) - 1 #define lt(v, x) (int)(lower_bound(all(v), x) - v.begin()) - 1 template <class T> bool chmax(T &a, const T &b) { return a < b ? a = b, 1 : 0; } template <class T> bool chmin(T &a, const T &b) { return a > b ? a = b, 1 : 0; } ostream &operator<<(ostream &os, const modint998244353 &a) { return os << a.val(); } ostream &operator<<(ostream &os, const modint1000000007 &a) { return os << a.val(); } istream &operator>>(istream &is, modint998244353 &a) { int64_t t; is >> t; a = t; return is; } istream &operator>>(istream &is, modint1000000007 &a) { int64_t t; is >> t; a = t; return is; } template <class S, class T> ostream &operator<<(ostream &os, const pair<S, T> &p) { return os << '(' << p.first << ", " << p.second << ')'; } template <class S, class T> istream &operator>>(istream &is, pair<S, T> &p) { return is >> p.first >> p.second; } template <class T> istream &operator>>(istream &is, vector<T> &v) { for (T &x : v) is >> x; return is; } template <class T> ostream &operator<<(ostream &os, const vector<T> &v) { for (const T &x : v) os << x << ' '; return os; } template <class T> ostream &operator<<(ostream &os, const vector<vector<T>> &v) { for (const vector<T> &x : v) os << x << '\n'; return os; } int main() { int H, W, Si, Sj, Ti, Tj; cin >> H >> W >> Si >> Sj >> Ti >> Tj; Si--, Sj--, Ti--, Tj--; vector<vector<bool>> used(H, vector<bool>(W)); used[Si][Sj] = true; vpii path = {{Si, Sj}}; int ans = 0; vpii dir = {{0, 1}, {1, 0}, {0, -1}, {-1, 0}}; auto check = [&]() -> bool { vvi dist = vvi(H, vi(W, -1)); dist[Si][Sj] = 0; queue<pii> q; q.emplace(Si, Sj); while (!q.empty()) { auto [i, j] = q.front(); q.pop(); for (auto [di, dj]: dir) { int ni = i + di, nj = j + dj; if (ni < 0 || nj < 0 || ni >= H || nj >= W || !used[ni][nj] || dist[ni][nj] != -1) continue; dist[ni][nj] = dist[i][j] + 1; q.emplace(ni, nj); } } return path.size()-1 == dist[Ti][Tj]; }; auto dfs = [&](auto self, int i, int j) -> void { if (i == Ti && j == Tj) { if (check()) ans++; return; } for (auto [di, dj]: dir) { int ni = i + di, nj = j + dj; if (ni < 0 || nj < 0 || ni >= H || nj >= W || used[ni][nj]) continue; used[ni][nj] = true; path.emplace_back(ni, nj); self(self, ni, nj); used[ni][nj] = false; path.pop_back(); } }; dfs(dfs, Si, Sj); cout << ans << endl; return 0; }