結果
問題 | No.2786 RMQ on Grid Path |
ユーザー |
|
提出日時 | 2024-06-17 23:20:14 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 1,323 ms / 6,000 ms |
コード長 | 2,888 bytes |
コンパイル時間 | 7,580 ms |
コンパイル使用メモリ | 337,924 KB |
実行使用メモリ | 29,372 KB |
最終ジャッジ日時 | 2024-06-17 23:20:48 |
合計ジャッジ時間 | 33,665 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 35 |
ソースコード
#include <bits/stdc++.h>#include <atcoder/all>using namespace std;using namespace atcoder;istream &operator>>(istream &is, modint &a) { long long v; is >> v; a = v; return is; }ostream &operator<<(ostream &os, const modint &a) { return os << a.val(); }istream &operator>>(istream &is, modint998244353 &a) { long long v; is >> v; a = v; return is; }ostream &operator<<(ostream &os, const modint998244353 &a) { return os << a.val(); }istream &operator>>(istream &is, modint1000000007 &a) { long long v; is >> v; a = v; return is; }ostream &operator<<(ostream &os, const modint1000000007 &a) { return os << a.val(); }typedef long long ll;typedef pair<int, int> pii;typedef pair<ll, ll> pll;#define FOR(i,l,r) for (int i = l;i < (int)(r); i++)#define rep(i,n) for (int i = 0;i < (int)(n); i++)#define all(x) x.begin(), x.end()#define rall(x) x.rbegin(), x.rend()#define my_sort(x) sort(x.begin(), x.end())#define my_max(x) *max_element(all(x))#define my_min(x) *min_element(all(x))template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }const int INF = (1<<30) - 1;const ll LINF = (1LL<<62) - 1;const int MOD = 998244353;const int MOD2 = 1e9+7;const double PI = acos(-1);vector<int> di = {1,0,-1,0};vector<int> dj = {0,1,0,-1};#ifdef LOCAL# include <debug_print.hpp># define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)#else# define debug(...) (static_cast<void>(0))#endifint main(){cin.tie(0);ios_base::sync_with_stdio(false);int H, W; cin >> H >> W;vector A(H, vector<int>(W));rep(i, H)rep(j, W) cin >> A[i][j];int Q; cin >> Q;vector<int> rs(Q), cs(Q), rt(Q), ct(Q);rep(i, Q){cin >> rs[i] >> cs[i];cin >> rt[i] >> ct[i];rs[i]--, cs[i]--;rt[i]--, ct[i]--;}int V = H * W;vector<vector<pii>> B(V + 1);rep(i, H)rep(j, W) B[A[i][j]].push_back({i, j});vector<int> ok(Q, H * W), ng(Q, 0);while(true){bool finish = true;vector<vector<int>> query(H * W + 1);rep(i, Q)if(abs(ok[i] - ng[i]) > 1){finish = false;query[(ok[i] + ng[i]) / 2].push_back(i);}if(finish) break;dsu uf(H * W);rep(mid, H * W + 1){for(auto &[i, j] : B[mid])rep(d, 4){int ni = i + di[d], nj = j + dj[d];if(ni < 0 || ni >= H || nj < 0 || nj >= W) continue;if(A[ni][nj] > mid) continue;uf.merge(ni * W + nj, i * W + j);}for(auto &qi : query[mid]){if(uf.same(rs[qi] * W + cs[qi], rt[qi] * W + ct[qi])) ok[qi] = mid;else ng[qi] = mid;}}}rep(i, Q) cout << ok[i] << endl;}