結果
問題 | No.1703 Much Matching |
ユーザー | bayashiko |
提出日時 | 2021-10-08 23:35:12 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 317 ms / 2,000 ms |
コード長 | 2,605 bytes |
コンパイル時間 | 2,257 ms |
コンパイル使用メモリ | 203,324 KB |
最終ジャッジ日時 | 2025-01-24 23:31:54 |
ジャッジサーバーID (参考情報) |
judge2 / judge2 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 35 |
ソースコード
//https://atcoder.jp/contests/arc126/submissions/25518669 //#pragma GCC optimize("Ofast") //#pragma GCC optimize("unroll-loops") #include <bits/stdc++.h> #include <atcoder/modint> using namespace std; using namespace atcoder; using ll = long long; using ull = unsigned long long; using pii = pair<int, int>; template <class T> using V = vector<T>; template <class T> using VV = V<V<T>>; template <class T> V<T> make_vec(size_t a) { return V<T>(a); } template <class T, class... Ts> auto make_vec(size_t a, Ts... ts) { return V<decltype(make_vec<T>(ts...))>(a, make_vec<T>(ts...)); } #define pb push_back #define eb emplace_back #define mp make_pair #define fi first #define se second #define rep(i, n) rep2(i, 0, n) #define rep2(i, m, n) for (int i = m; i < (n); i++) #define per(i, b) per2(i, 0, b) #define per2(i, a, b) for (int i = int(b) - 1; i >= int(a); i--) #define ALL(c) (c).begin(), (c).end() #define SZ(x) ((int)(x).size()) constexpr ll TEN(int n) { return (n == 0) ? 1 : 10 * TEN(n - 1); } template <class T, class U> void chmin(T& t, const U& u) { if (t > u) t = u; } template <class T, class U> void chmax(T& t, const U& u) { if (t < u) t = u; } template <class T, class U> ostream& operator<<(ostream& os, const pair<T, U>& p) { os << "(" << p.first << "," << p.second << ")"; return os; } template <class T> ostream& operator<<(ostream& os, const vector<T>& v) { os << "{"; rep(i, v.size()) { if (i) os << ","; os << v[i]; } os << "}"; return os; } template <class T> auto operator<<(ostream& os, T t) -> typename std::enable_if_t<internal::is_modint<T>::value, ostream&> { os << t.val(); return os; } #ifdef LOCAL void debug_out() { cerr << endl; } template <typename Head, typename... Tail> void debug_out(Head H, Tail... T) { cerr << " " << H; debug_out(T...); } #define debug(...) \ cerr << __LINE__ << " [" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__) #define dump(x) cerr << __LINE__ << " " << #x << " = " << (x) << endl #else #define debug(...) (void(0)) #define dump(x) (void(0)) #endif constexpr int INF = TEN(9); int main() { cin.tie(nullptr); ios::sync_with_stdio(false); int N, M ,Q; cin >> N >> M >> Q; V<pii> vec(Q); rep(i, Q) { int a, b; cin >> a >> b; vec[i] = mp(a, -b); } sort(ALL(vec)); V<int> dp(max(N,M) + 1, INF); dp[0] = 0; for (auto& [a, b] : vec) { auto it = lower_bound(ALL(dp), -b); *it = -b; } cout << lower_bound(ALL(dp), INF) - dp.begin() - 1 << endl; return 0; }