結果
問題 | No.674 n連勤 |
ユーザー | 👑 emthrm |
提出日時 | 2021-02-22 03:28:05 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 22 ms / 2,000 ms |
コード長 | 4,566 bytes |
コンパイル時間 | 2,146 ms |
コンパイル使用メモリ | 210,588 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-09-19 23:46:07 |
合計ジャッジ時間 | 3,487 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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
6,812 KB |
testcase_01 | AC | 1 ms
6,940 KB |
testcase_02 | AC | 1 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 1 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 1 ms
6,944 KB |
testcase_07 | AC | 1 ms
6,944 KB |
testcase_08 | AC | 2 ms
6,944 KB |
testcase_09 | AC | 1 ms
6,940 KB |
testcase_10 | AC | 2 ms
6,940 KB |
testcase_11 | AC | 2 ms
6,940 KB |
testcase_12 | AC | 3 ms
6,944 KB |
testcase_13 | AC | 11 ms
6,940 KB |
testcase_14 | AC | 13 ms
6,944 KB |
testcase_15 | AC | 11 ms
6,940 KB |
testcase_16 | AC | 22 ms
6,940 KB |
testcase_17 | AC | 21 ms
6,940 KB |
testcase_18 | AC | 16 ms
6,944 KB |
testcase_19 | AC | 12 ms
6,944 KB |
ソースコード
#define _USE_MATH_DEFINES #include <bits/stdc++.h> using namespace std; #define FOR(i,m,n) for(int i=(m);i<(n);++i) #define REP(i,n) FOR(i,0,n) #define ALL(v) (v).begin(),(v).end() using ll = long long; constexpr int INF = 0x3f3f3f3f; constexpr long long LINF = 0x3f3f3f3f3f3f3f3fLL; constexpr double EPS = 1e-8; constexpr int MOD = 1000000007; // constexpr int MOD = 998244353; constexpr int dy[] = {1, 0, -1, 0}, dx[] = {0, -1, 0, 1}; constexpr int dy8[] = {1, 1, 0, -1, -1, -1, 0, 1}, dx8[] = {0, -1, -1, -1, 0, 1, 1, 1}; template <typename T, typename U> inline bool chmax(T &a, U b) { return a < b ? (a = b, true) : false; } template <typename T, typename U> inline bool chmin(T &a, U b) { return a > b ? (a = b, true) : false; } struct IOSetup { IOSetup() { std::cin.tie(nullptr); std::ios_base::sync_with_stdio(false); std::cout << fixed << setprecision(20); } } iosetup; template <typename T> struct SetManagedByInterval { std::set<std::pair<T, T>> interval{ {std::numeric_limits<T>::lowest(), std::numeric_limits<T>::lowest()}, {std::numeric_limits<T>::max(), std::numeric_limits<T>::max()}, }; bool contains(T x) const { return contains(x, x); } bool contains(T left, T right) const { auto it = interval.lower_bound({left, left}); if (left < it->first) it = std::prev(it); return it->first <= left && right <= it->second; } bool erase(T x) { auto it = interval.lower_bound({x, x}); if (it->first == x) { T right = it->second; interval.erase(it); if (x + 1 <= right) interval.emplace(x + 1, right); return true; } it = std::prev(it); T left, right; std::tie(left, right) = *it; if (right < x) return false; interval.erase(it); interval.emplace(left, x - 1); if (x + 1 <= right) interval.emplace(x + 1, right); return true; } T erase(T left, T right) { assert(left <= right); auto it = interval.lower_bound({left, left}); T res = 0; for (; it->second <= right; it = interval.erase(it)) res += it->second - it->first + 1; if (it->first <= right) { res += right - it->first + 1; T r = it->second; interval.erase(it); it = interval.emplace(right + 1, r).first; } if (left <= std::prev(it)->second) { it = std::prev(it); res += it->second - left + 1; T l = it->first; interval.erase(it); interval.emplace(l, left - 1); } return res; } bool insert(T x) { auto it = interval.lower_bound({x, x}); if (it->first == x || x <= std::prev(it)->second) return false; T left = x, right = x; if (x + 1 == it->first) { right = it->second; it = interval.erase(it); } if (std::prev(it)->second == x - 1) { it = std::prev(it); left = it->first; interval.erase(it); } interval.emplace(left, right); return true; } T insert(T left, T right) { assert(left <= right); auto it = interval.lower_bound({left, left}); if (left <= std::prev(it)->second) { it = std::prev(it); left = it->first; } if (left == it->first && right <= it->second) return 0; T res = 0; for (; it->second <= right; it = interval.erase(it)) res -= it->second - it->first + 1; if (it->first <= right) { res -= it->second - it->first + 1; right = it->second; it = interval.erase(it); } res += right - left + 1; if (right + 1 == it->first) { right = it->second; it = interval.erase(it); } if (std::prev(it)->second == left - 1) { it = std::prev(it); left = it->first; interval.erase(it); } interval.emplace(left, right); return res; } T mex(T x = 0) const { auto it = interval.lower_bound({x, x}); if (x <= std::prev(it)->second) it = std::prev(it); return x < it->first ? x : it->second + 1; } friend std::ostream &operator<<(std::ostream &os, const SetManagedByInterval &st) { if (st.interval.size() == 2) return os; auto it = next(st.interval.begin()); while (true) { os << '[' << it->first << ", " << it->second << ']'; it = next(it); if (next(it) == st.interval.end()) { break; } else { os << ' '; } } return os; } }; int main() { ll d; int q; cin >> d >> q; SetManagedByInterval<ll> st; ll ans = 0; while (q--) { ll a, b; cin >> a >> b; st.insert(a, b); auto [l, r] = *prev(st.interval.lower_bound({a + 1, a + 1})); chmax(ans, r - l + 1); cout << ans << '\n'; } return 0; }