結果
問題 | No.1244 Black Segment |
ユーザー | stoq |
提出日時 | 2020-10-03 09:44:26 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 48 ms / 2,000 ms |
コード長 | 3,787 bytes |
コンパイル時間 | 2,135 ms |
コンパイル使用メモリ | 216,316 KB |
実行使用メモリ | 10,664 KB |
最終ジャッジ日時 | 2024-07-18 04:09:13 |
合計ジャッジ時間 | 4,375 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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 | 2 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 2 ms
6,944 KB |
testcase_11 | AC | 2 ms
6,940 KB |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | AC | 22 ms
6,944 KB |
testcase_15 | AC | 3 ms
6,940 KB |
testcase_16 | AC | 21 ms
6,940 KB |
testcase_17 | AC | 3 ms
6,944 KB |
testcase_18 | AC | 26 ms
7,932 KB |
testcase_19 | AC | 38 ms
8,312 KB |
testcase_20 | AC | 40 ms
8,960 KB |
testcase_21 | AC | 33 ms
9,088 KB |
testcase_22 | AC | 44 ms
8,832 KB |
testcase_23 | AC | 48 ms
9,344 KB |
testcase_24 | AC | 45 ms
9,340 KB |
testcase_25 | AC | 42 ms
9,216 KB |
testcase_26 | AC | 42 ms
9,344 KB |
testcase_27 | AC | 40 ms
9,088 KB |
testcase_28 | AC | 46 ms
9,600 KB |
testcase_29 | AC | 42 ms
9,472 KB |
testcase_30 | AC | 45 ms
9,600 KB |
testcase_31 | AC | 42 ms
9,088 KB |
testcase_32 | AC | 42 ms
9,088 KB |
testcase_33 | AC | 41 ms
8,960 KB |
testcase_34 | AC | 39 ms
9,660 KB |
testcase_35 | AC | 42 ms
10,664 KB |
testcase_36 | AC | 45 ms
10,304 KB |
testcase_37 | AC | 44 ms
9,776 KB |
testcase_38 | AC | 43 ms
9,828 KB |
ソースコード
#define MOD_TYPE 2 #pragma region Macros #include <bits/stdc++.h> using namespace std; #if 0 #include <boost/multiprecision/cpp_int.hpp> #include <boost/multiprecision/cpp_dec_float.hpp> using Int = boost::multiprecision::cpp_int; using lld = boost::multiprecision::cpp_dec_float_100; #endif #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") using ll = long long int; using ld = long double; using pii = pair<int, int>; using pll = pair<ll, ll>; using pld = pair<ld, ld>; template <typename Q_type> using smaller_queue = priority_queue<Q_type, vector<Q_type>, greater<Q_type>>; constexpr ll MOD = (MOD_TYPE == 1 ? (ll)(1e9 + 7) : 998244353); //constexpr ll MOD = 1; constexpr int INF = (int)1e9 + 10; constexpr ll LINF = (ll)4e18; constexpr double PI = acos(-1.0); constexpr double EPS = 1e-11; constexpr int Dx[] = {0, 0, -1, 1, -1, 1, -1, 1, 0}; constexpr int Dy[] = {1, -1, 0, 0, -1, -1, 1, 1, 0}; #define REP(i, m, n) for (ll i = m; i < (ll)(n); ++i) #define rep(i, n) REP(i, 0, n) #define REPI(i, m, n) for (int i = m; i < (int)(n); ++i) #define repi(i, n) REPI(i, 0, n) #define MP make_pair #define MT make_tuple #define YES(n) cout << ((n) ? "YES" : "NO") << "\n" #define Yes(n) cout << ((n) ? "Yes" : "No") << "\n" #define possible(n) cout << ((n) ? "possible" : "impossible") << "\n" #define Possible(n) cout << ((n) ? "Possible" : "Impossible") << "\n" #define Yay(n) cout << ((n) ? "Yay!" : ":(") << "\n" #define all(v) v.begin(), v.end() #define NP(v) next_permutation(all(v)) #define dbg(x) cerr << #x << ":" << x << "\n"; struct io_init { io_init() { cin.tie(0); ios::sync_with_stdio(false); cout << setprecision(30) << setiosflags(ios::fixed); }; } io_init; template <typename T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; } return false; } template <typename T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; } return false; } inline ll CEIL(ll a, ll b) { return (a + b - 1) / b; } template <typename A, size_t N, typename T> inline void Fill(A (&array)[N], const T &val) { fill((T *)array, (T *)(array + N), val); } template <typename T, typename U> constexpr istream &operator>>(istream &is, pair<T, U> &p) noexcept { is >> p.first >> p.second; return is; } template <typename T, typename U> constexpr ostream &operator<<(ostream &os, pair<T, U> &p) noexcept { os << p.first << " " << p.second; return os; } #pragma endregion template <typename T> struct dijkstra { int V; T INF_d; struct edge { int to; T cost; }; vector<vector<edge>> E; vector<T> d; using pt = pair<T, int>; dijkstra(int V_) : V(V_) { E.resize(V); d.resize(V); if (is_same<int, T>::value) INF_d = 2e9; else INF_d = 8e18; } void add_E(int a, int b, T c = 1, bool directed = true) { E[a].emplace_back(edge{b, c}); if (!directed) E[b].emplace_back(edge{a, c}); } void calc(int s) { priority_queue<pt, vector<pt>, greater<pt>> que; fill(d.begin(), d.end(), INF_d); que.emplace(T(0), s); d[s] = 0; while (!que.empty()) { pt p = que.top(); que.pop(); int v = p.second; if (d[v] < p.first) continue; for (auto &&e : E[v]) { if (d[e.to] > d[v] + e.cost) { d[e.to] = d[v] + e.cost; que.emplace(d[e.to], e.to); } } } } }; void solve() { int n, m, a, b; cin >> n >> m >> a >> b; dijkstra<int> ds(n + 1); rep(i, m) { int l, r; cin >> l >> r; if (l < a) l = a; if (r > b) r = b; ds.add_E(l - 1, r, 1, 0); } ds.calc(a - 1); cout << (ds.d[b] == ds.INF_d ? -1 : ds.d[b]) << "\n"; } int main() { solve(); }