結果
問題 | No.124 門松列(3) |
ユーザー |
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提出日時 | 2018-04-27 01:50:53 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 5 ms / 5,000 ms |
コード長 | 2,431 bytes |
コンパイル時間 | 1,688 ms |
コンパイル使用メモリ | 182,168 KB |
実行使用メモリ | 7,632 KB |
最終ジャッジ日時 | 2024-06-27 21:31:17 |
合計ジャッジ時間 | 2,664 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 26 |
ソースコード
#include <bits/stdc++.h>using namespace std;using VS = vector<string>; using LL = long long;using VI = vector<int>; using VVI = vector<VI>;using PII = pair<int, int>; using PLL = pair<LL, LL>;using VL = vector<LL>; using VVL = vector<VL>;#define ALL(a) begin((a)),end((a))#define RALL(a) (a).rbegin(), (a).rend()#define PB push_back#define EB emplace_back#define MP make_pair#define SZ(a) int((a).size())#define SORT(c) sort(ALL((c)))#define RSORT(c) sort(RALL((c)))#define UNIQ(c) (c).erase(unique(ALL((c))), end((c)))#define FOR(i, s, e) for (int(i) = (s); (i) < (e); (i)++)#define FORR(i, s, e) for (int(i) = (s); (i) > (e); (i)--)#define debug(x) cerr << #x << ": " << x << endlconst int INF = 1e9; const LL LINF = 1e16;const LL MOD = 1000000007; const double PI = acos(-1.0);int DX[8] = { 0, 0, 1, -1, 1, 1, -1, -1 }; int DY[8] = { 1, -1, 0, 0, 1, -1, 1, -1 };/* ----- 2018/04/26 Problem: yukicoder 124 / Link: http://yukicoder.me/problems/no/124 ----- *//* ------問題-----------問題ここまで----- *//* -----解説等---------解説ここまで---- */int main() {cin.tie(0);ios_base::sync_with_stdio(false);int W, H; cin >> W >> H;VVI a(H, VI(W));FOR(i, 0, H) {FOR(j, 0, W) {cin >> a[i][j];}}int dist[102][102][10][10];fill(***dist, ***dist + 102 * 102 * 10 * 10, INF);using tp = tuple<int, int, int, int, int>;queue<tp>pq;dist[0][0][0][a[0][0]] = 0;pq.push(tp(0, 0, 0, 0, a[0][0])); // dist, y, x, prepre, preauto f = [&](int c, int b, int a) {//bool ok = 0;if (a<b&&b>c&&a != c)ok = 1;if (a > b&&b < c&&a != c)ok = 1;if (a == 0 || b == 0)ok = 1;return ok;};while (!pq.empty()) {int d, y, x, a_2, a_1;tie(d, y, x, a_2, a_1) = pq.front(); pq.pop();if (dist[y][x][a_2][a_1] < d)continue;FOR(k, 0, 4) {int ny = y + DY[k], nx = x + DX[k];if (0 <= ny&&ny < H && 0 <= nx&&nx < W) {if (f(a[ny][nx], a_1, a_2)) {//cout << a_2 << "," << a_1 << "," << a[ny][nx]<< endl;if (dist[ny][nx][a_1][a[ny][nx]] > dist[y][x][a_2][a_1] + 1) {dist[ny][nx][a_1][a[ny][nx]] = dist[y][x][a_2][a_1] + 1;pq.push(tp(d, ny, nx, a_1, a[ny][nx]));}}}}}int ans = INF;FOR(i, 1, 10) {FOR(j, 1, 10) {ans = min(ans, dist[H - 1][W - 1][i][j]);}}cout << (ans < INF ? ans : -1) << "\n";return 0;}