結果
問題 | No.2574 Defect-free Rectangles |
ユーザー | KumaTachiRen |
提出日時 | 2023-12-02 16:42:40 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 3,388 bytes |
コンパイル時間 | 4,857 ms |
コンパイル使用メモリ | 271,992 KB |
実行使用メモリ | 10,624 KB |
最終ジャッジ日時 | 2024-09-26 20:38:04 |
合計ジャッジ時間 | 9,147 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
(要ログイン)
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
10,624 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 5 ms
5,376 KB |
testcase_04 | AC | 7 ms
5,376 KB |
testcase_05 | AC | 5 ms
5,376 KB |
testcase_06 | AC | 613 ms
5,376 KB |
testcase_07 | AC | 335 ms
5,376 KB |
testcase_08 | AC | 302 ms
5,376 KB |
testcase_09 | TLE | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
ソースコード
#include <bits/stdc++.h> #include <atcoder/all> using namespace std; using namespace atcoder; struct Fast { Fast() { std::cin.tie(nullptr); ios::sync_with_stdio(false); cout << setprecision(10); } } fast; #define all(a) (a).begin(), (a).end() #define contains(a, x) ((a).find(x) != (a).end()) #define rep(i, a, b) for (int i = (a); i < (int)(b); i++) #define rrep(i, a, b) for (int i = (int)(b)-1; i >= (a); i--) #define YN(b) cout << ((b) ? "YES" : "NO") << "\n"; #define Yn(b) cout << ((b) ? "Yes" : "No") << "\n"; #define yn(b) cout << ((b) ? "yes" : "no") << "\n"; template <typename T> ostream& operator<<(ostream& os, vector<T>& vec) { for (int i = 0; i < vec.size(); i++) { os << vec[i] << (i + 1 == vec.size() ? "" : " "); } return os; } using ll = long long; using vb = vector<bool>; using vvb = vector<vb>; using vi = vector<int>; using vvi = vector<vi>; using vl = vector<ll>; using vvl = vector<vl>; using mint = modint998244353; using vm = vector<mint>; using vvm = vector<vm>; inline ostream& operator<<(ostream& os, const mint P) { return os << P.val(); }; // https://satanic0258.github.io/snippets/data-structure/SegmentMap.html class SegmentMap : public std::map<signed, signed> { private: bool flagToMergeAdjacentSegment; public: // if merge [l, c] and [c+1, r], set flagToMergeAdjacentSegment to true SegmentMap(bool flagToMergeAdjacentSegment) : flagToMergeAdjacentSegment(flagToMergeAdjacentSegment) {} // __exist -> iterator pair(l, r) (contain p) // noexist -> map.end() auto get(signed p) const { auto it = upper_bound(p); if (it == begin() || (--it)->second < p) return end(); return it; } // insert segment [l, r] void insert(signed l, signed r) { auto itl = upper_bound(l), itr = upper_bound(r + flagToMergeAdjacentSegment); if (itl != begin()) { if ((--itl)->second < l - flagToMergeAdjacentSegment) ++itl; } if (itl != itr) { l = std::min(l, itl->first); r = std::max(r, std::prev(itr)->second); erase(itl, itr); } (*this)[l] = r; } // remove segment [l, r] void remove(signed l, signed r) { auto itl = upper_bound(l), itr = upper_bound(r); if (itl != begin()) { if ((--itl)->second < l) ++itl; } if (itl == itr) return; int tl = std::min(l, itl->first), tr = std::max(r, std::prev(itr)->second); erase(itl, itr); if (tl < l) (*this)[tl] = l - 1; if (r < tr) (*this)[r + 1] = tr; } // Is p and q in same segment? bool same(signed p, signed q) const { const auto&& it = get(p); return it != end() && it->first <= q && q <= it->second; } }; void solve() { int h, w, n; cin >> h >> w >> n; vvi b(h, vi()); rep(i, 0, n) { int u, v; cin >> u >> v; b[u - 1].push_back(v - 1); } ll ans = 0; rep(r, 0, h) { SegmentMap sm(true); sm.insert(0, w - 1); ll sum = (ll)w * (w + 1) / 2; rep(x, r, h) { for (auto y : b[x]) { auto p = sm.get(y); if (p == sm.end()) continue; int l = (*p).first; int r = (*p).second + 1; ll d = r - l; sum -= d * (d + 1) / 2; ll d1 = y - l, d2 = r - (y + 1); sum += d1 * (d1 + 1) / 2 + d2 * (d2 + 1) / 2; sm.remove(y, y); } ans += sum; } } cout << ans << "\n"; } int main() { int t = 1; // cin >> t; while (t--) solve(); }