結果
問題 | No.1607 Kth Maximum Card |
ユーザー | kaikey |
提出日時 | 2021-07-16 22:26:56 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 1,795 ms / 3,500 ms |
コード長 | 4,784 bytes |
コンパイル時間 | 2,032 ms |
コンパイル使用メモリ | 216,080 KB |
実行使用メモリ | 25,844 KB |
最終ジャッジ日時 | 2024-07-06 09:54:06 |
合計ジャッジ時間 | 20,971 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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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 | 1 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 1 ms
5,376 KB |
testcase_03 | AC | 1 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 1 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 1,459 ms
25,256 KB |
testcase_09 | AC | 1,064 ms
21,176 KB |
testcase_10 | AC | 1,477 ms
25,260 KB |
testcase_11 | AC | 221 ms
8,496 KB |
testcase_12 | AC | 1,006 ms
20,368 KB |
testcase_13 | AC | 150 ms
6,632 KB |
testcase_14 | AC | 199 ms
7,776 KB |
testcase_15 | AC | 946 ms
20,712 KB |
testcase_16 | AC | 155 ms
7,016 KB |
testcase_17 | AC | 45 ms
5,376 KB |
testcase_18 | AC | 575 ms
15,844 KB |
testcase_19 | AC | 343 ms
11,112 KB |
testcase_20 | AC | 444 ms
13,036 KB |
testcase_21 | AC | 500 ms
14,024 KB |
testcase_22 | AC | 1,238 ms
25,064 KB |
testcase_23 | AC | 1,284 ms
25,064 KB |
testcase_24 | AC | 434 ms
10,740 KB |
testcase_25 | AC | 258 ms
8,012 KB |
testcase_26 | AC | 317 ms
8,884 KB |
testcase_27 | AC | 454 ms
10,852 KB |
testcase_28 | AC | 362 ms
9,580 KB |
testcase_29 | AC | 863 ms
16,892 KB |
testcase_30 | AC | 1,795 ms
25,844 KB |
testcase_31 | AC | 790 ms
15,656 KB |
testcase_32 | AC | 290 ms
18,600 KB |
testcase_33 | AC | 277 ms
18,592 KB |
testcase_34 | AC | 291 ms
18,604 KB |
testcase_35 | AC | 265 ms
18,376 KB |
ソースコード
#include "bits/stdc++.h" #include <random> #define ALL(x) (x).begin(), (x).end() #define RALL(x) (x).rbegin(), (x).rend() #define SZ(x) ((lint)(x).size()) #define FOR(i, begin, end) for(lint i=(begin),i##_end_=(end);i<i##_end_;++i) #define IFOR(i, begin, end) for(lint i=(end)-1,i##_begin_=(begin);i>=i##_begin_;--i) #define REP(i, n) FOR(i,0,n) #define IREP(i, n) IFOR(i,0,n) #define endk '\n' using namespace std; typedef unsigned long long _ulong; typedef long long int lint; typedef long double ld; typedef pair<lint, lint> plint; typedef pair<ld, ld> pld; struct fast_ios { fast_ios() { cin.tie(nullptr), ios::sync_with_stdio(false), cout << fixed << setprecision(20); }; } fast_ios_; template<class T> auto add = [](T a, T b) -> T { return a + b; }; template<class T> auto f_max = [](T a, T b) -> T { return max(a, b); }; template<class T> auto f_min = [](T a, T b) -> T { return min(a, b); }; template<class T> using V = vector<T>; using Vl = V<lint>; using VVl = V<Vl>; template< typename T > ostream& operator<<(ostream& os, const vector< T >& v) { for (int i = 0; i < (int)v.size(); i++) os << v[i] << (i + 1 != v.size() ? " " : ""); return os; } template< typename T >istream& operator>>(istream& is, vector< T >& v) { for (T& in : v) is >> in; return is; } template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; } template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; } template <class T> T div_floor(T a, T b) { if (b < 0) a *= -1, b *= -1; return a >= 0 ? a / b : (a + 1) / b - 1; } template <class T> T div_ceil(T a, T b) { if (b < 0) a *= -1, b *= -1; return a > 0 ? (a - 1) / b + 1 : a / b; } template <class F> struct rec { F f; rec(F&& f_) : f(std::forward<F>(f_)) {} template <class... Args> auto operator()(Args &&... args) const { return f(*this, std::forward<Args>(args)...); } }; lint gcd(lint a, lint b) { if (b == 0) return a; else return gcd(b, a % b); } lint digit(lint a) { return (lint)log10(a); } lint e_dist(plint a, plint b) { return abs(a.first - b.first) * abs(a.first - b.first) + abs(a.second - b.second) * abs(a.second - b.second); } lint m_dist(plint a, plint b) { return abs(a.first - b.first) + abs(a.second - b.second); } bool check_overflow(lint a, lint b, lint limit) { if (b == 0) return false; return a > limit / b; } // a * b > c => true void Worshall_Floyd(VVl& g) { REP(k, SZ(g)) REP(i, SZ(g)) REP(j, SZ(g)) chmin(g[i][j], g[i][k] + g[k][j]); } const lint MOD1000000007 = 1000000007, MOD998244353 = 998244353, INF = 1e18; lint dx[8] = { 0, -1, 0, 1, 1, -1, 1, -1 }, dy[8] = { -1, 0, 1, 0, -1, -1, 1, 1 }; bool YN(bool flag) { cout << (flag ? "YES" : "NO") << endk; return flag; } bool yn(bool flag) { cout << (flag ? "Yes" : "No") << endl; return flag; } struct Edge { lint from, to; lint cost; Edge() { } Edge(lint u, lint v, lint c) { cost = c; from = u; to = v; } bool operator<(const Edge& e) const { return cost < e.cost; } }; struct WeightedEdge { lint to; lint cost; WeightedEdge(lint v, lint c) { to = v; cost = c; } bool operator<(const WeightedEdge& e) const { return cost < e.cost; } }; using WeightedGraph = V<V<WeightedEdge>>; typedef pair<ld, plint> tlint; typedef pair<plint, plint> qlint; typedef pair<string, lint> valstr; Vl Dijkstra(WeightedGraph& g, int s) { Vl dist(SZ(g), INF); deque<lint> que; que.push_back(0); dist[s] = 0; while (!que.empty()) { lint curr = que.front(); que.pop_front(); for (auto nxt : g[curr]) { if (dist[nxt.to] > dist[curr] + nxt.cost) { dist[nxt.to] = dist[curr] + nxt.cost; if (nxt.cost == 0) que.push_front(nxt.to); else que.push_back(nxt.to); } } } return dist; } int main() { lint N, M, K; cin >> N >> M >> K; V<Edge> es; REP(i, M) { lint u, v, c; cin >> u >> v >> c; u--; v--; es.push_back({ u, v, c }); } auto check = [&](lint val) { WeightedGraph to(N); REP(i, M) { if (es[i].cost <= val) { to[es[i].to].push_back({ es[i].from, 0 }); to[es[i].from].push_back({ es[i].to, 0 }); } else { to[es[i].to].push_back({ es[i].from, 1 }); to[es[i].from].push_back({ es[i].to, 1 }); } } auto v = Dijkstra(to, 0); return v[N - 1] < K; }; lint ng = -1, ok = 1e9 + 1; while (ok - ng > 1) { lint mid = (ok + ng) / 2; if (check(mid)) ok = mid; else ng = mid; } cout << ok << endl; }