結果

問題 No.1473 おでぶなおばけさん
ユーザー nullnull
提出日時 2021-04-04 15:40:25
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
MLE  
(最新)
AC  
(最初)
実行時間 -
コード長 6,850 bytes
コンパイル時間 12,580 ms
コンパイル使用メモリ 554,388 KB
実行使用メモリ 550,000 KB
最終ジャッジ日時 2024-06-08 14:43:46
合計ジャッジ時間 23,057 ms
ジャッジサーバーID
(参考情報)
judge3 / judge1
このコードへのチャレンジ
(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
13,760 KB
testcase_01 AC 2 ms
6,940 KB
testcase_02 AC 203 ms
27,012 KB
testcase_03 AC 159 ms
17,480 KB
testcase_04 AC 129 ms
15,920 KB
testcase_05 AC 48 ms
6,944 KB
testcase_06 AC 209 ms
18,192 KB
testcase_07 AC 203 ms
28,336 KB
testcase_08 AC 251 ms
28,196 KB
testcase_09 AC 184 ms
27,364 KB
testcase_10 AC 105 ms
15,220 KB
testcase_11 AC 118 ms
14,936 KB
testcase_12 AC 109 ms
14,304 KB
testcase_13 AC 66 ms
10,024 KB
testcase_14 AC 49 ms
8,972 KB
testcase_15 AC 100 ms
14,344 KB
testcase_16 AC 97 ms
13,820 KB
testcase_17 AC 9 ms
6,940 KB
testcase_18 AC 15 ms
6,944 KB
testcase_19 AC 96 ms
15,316 KB
testcase_20 AC 125 ms
17,416 KB
testcase_21 AC 148 ms
16,032 KB
testcase_22 AC 122 ms
18,552 KB
testcase_23 AC 94 ms
13,380 KB
testcase_24 AC 95 ms
17,100 KB
testcase_25 AC 233 ms
18,036 KB
testcase_26 AC 253 ms
26,320 KB
testcase_27 AC 74 ms
10,436 KB
testcase_28 AC 214 ms
27,096 KB
testcase_29 AC 140 ms
16,192 KB
testcase_30 AC 183 ms
25,856 KB
testcase_31 AC 167 ms
17,960 KB
testcase_32 AC 163 ms
17,348 KB
testcase_33 AC 131 ms
16,528 KB
testcase_34 AC 68 ms
10,560 KB
testcase_35 AC 76 ms
10,216 KB
testcase_36 AC 124 ms
15,056 KB
testcase_37 AC 155 ms
16,412 KB
testcase_38 AC 27 ms
6,940 KB
testcase_39 AC 106 ms
14,772 KB
testcase_40 AC 99 ms
14,048 KB
testcase_41 AC 90 ms
15,384 KB
testcase_42 AC 92 ms
16,852 KB
testcase_43 AC 109 ms
15,544 KB
testcase_44 AC 110 ms
16,072 KB
testcase_45 AC 110 ms
15,668 KB
testcase_46 MLE -
testcase_47 -- -
testcase_48 -- -
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ソースコード

diff #

/*
このコード、と~おれ!
Be accepted!
∧_∧ 
(。・ω・。)つ━☆・*。
⊂   ノ    ・゜+.
 しーJ   °。+ *´¨)
          .· ´¸.·*´¨) ¸.·*¨)
		            (¸.·´ (¸.·'* ☆
*/

#include <cstdio>
#include <algorithm>
#include <string>
#include <cmath>
#include <cstring>
#include <vector>
#include <numeric>
#include <iostream>
#include <random>
#include <map>
#include <unordered_map>
#include <queue>
#include <regex>
#include <functional>
#include <complex>
#include <list>
#include <cassert>
#include <iomanip>
#include <set>
#include <stack>
#include <bitset>
#include <array>
#include <chrono>

//#pragma GCC target("arch=skylake-avx512")
//#pragma GCC target("avx2")
//#pragma GCC optimize("O3")
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse4")
//#pragma GCC optimize("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define repeat(i, n, m) for(int i = n; i < (m); ++i)
#define rep(i, n) for(int i = 0; i < (n); ++i)
#define printynl(a) printf(a ? "yes\n" : "no\n")
#define printyn(a) printf(a ? "Yes\n" : "No\n")
#define printYN(a) printf(a ? "YES\n" : "NO\n")
#define printim(a) printf(a ? "possible\n" : "imposible\n")
#define printdb(a) printf("%.50lf\n", a)
#define printLdb(a) printf("%.50Lf\n", a)
#define printdbd(a) printf("%.16lf\n", a)
#define prints(s) printf("%s\n", s.c_str())
#define all(x) (x).begin(), (x).end()
#define deg_to_rad(deg) (((deg)/360.0L)*2.0L*PI)
#define rad_to_deg(rad) (((rad)/2.0L/PI)*360.0L)
#define Please return
#define AC 0
#define manhattan_dist(a, b, c, d) (abs(a - c) + abs(b - d))

using ll = long long;
using ull = unsigned long long;

constexpr int INF = 1073741823;
constexpr int MINF = -1073741823;
constexpr ll LINF = ll(4661686018427387903);
constexpr ll MOD = 1e9 + 7;
constexpr ll mod = 998244353;
constexpr long double eps = 1e-6;
const long double PI = acosl(-1.0L);

using namespace std;

void scans(string& str) {
	char c;
	str = "";
	scanf("%c", &c);
	if (c == '\n')scanf("%c", &c);
	while (c != '\n' && c != -1 && c != ' ') {
		str += c;
		scanf("%c", &c);
	}
}

void scanc(char& str) {
	char c;
	scanf("%c", &c);
	if (c == -1)return;
	while (c == '\n') {
		scanf("%c", &c);
	}
	str = c;
}

double acot(double x) {
	return PI / 2 - atan(x);
}

ll LSB(ll n) { return (n & (-n)); }

template<typename T>
inline T chmin(T& a, const T& b) {
	if (a > b)a = b;
	return a;
}

template<typename T>
inline T chmax(T& a, const T& b) {
	if (a < b)a = b;
	return a;
}

//cpp_int
#if __has_include(<boost/multiprecision/cpp_int.hpp>)
#include <boost/multiprecision/cpp_int.hpp>
#include <boost/multiprecision/cpp_dec_float.hpp>
using namespace boost::multiprecision;
#else
using cpp_int = ll;
#endif

//atcoder library
#if __has_include(<atcoder/all>)
#include <atcoder/all>
//using namespace atcoder;
#endif

/*
	random_device seed_gen;
	mt19937 engine(seed_gen());
	uniform_int_distribution dist(1, 100);
*/


/*----------------------------------------------------------------------------------*/

/*
* @title template(graph)
* @docs kyopro/docs/graph_template.md
*/

template<typename T>
struct edge {
	T cost;
	int from, to;

	edge(int from, int to) : from(from), to(to), cost(T(1)) {}
	edge(int from, int to, T cost) : from(from), to(to), cost(cost) {}
};

template<typename T = int>
struct graph {

	int n;
	bool directed, weighted;

	vector<vector<edge<T>>> g;

	graph(int n, bool directed, bool weighted) : g(n), n(n), directed(directed), weighted(weighted) {}

	void add_edge(int from, int to, T cost = T(1)) {
		g[from].emplace_back(from, to, cost);
		if (not directed) {
			g[to].emplace_back(to, from, cost);
		}
	}

	vector<edge<T>>& operator[](const int& idx) {
		return g[idx];
	}

	void read(int e, bool one_indexed) {
		int a, b, c = 1;
		while (e--) {
			scanf("%d%d", &a, &b);
			if (weighted) {
				scanf("%d", &c);
			}
			if (one_indexed)--a, --b;
			add_edge(a, b, c);
		}
	}

	void read(int e, bool one_indexed, const string& format) {
		int a, b;
		T c = T(1);
		while (e--) {
			scanf("%d%d", &a, &b);
			if (weighted) {
				scanf(format.c_str(), &c);
			}
			if (one_indexed)--a, --b;
			add_edge(a, b, c);
		}
	}

};

/*
* @title unionfind
* @docs kyopro/docs/unionfind.md
*/

//0-indexed
struct unionfind {
	vector<int> par, siz;

	unionfind(int n) : par(n), siz(n) {
		for (int i = 0; i < n; ++i) {
			//全部根で初期化
			par[i] = i;
			//サイズは1
			siz[i] = 1;
		}
	}

	void init(int n) {
		par.resize(n);
		siz.resize(n);
		for (int i = 0; i < n; ++i) {
			//全部根で初期化
			par[i] = i;
			//サイズは1
			siz[i] = 1;
		}
	}

	//根を返す
	int find(int a) {
		return par[a] == a ? a : par[a] = find(par[a]);
	}

	//くっつける。元から同じだったらfalseを返す
	bool unite(int a, int b) {
		int x = find(a), y = find(b);
		if (x == y)return false;
		else if (siz[x] < siz[y]) {
			par[x] = y;
			siz[y] += siz[x];
		}
		else if (siz[x] > siz[y]) {
			par[y] = x;
			siz[x] += siz[y];
		}
		else {
			par[x] = y;
			siz[y] += siz[x];
		}
		return true;
	}

	//同じ集合か判定する
	bool same(int a, int b) {
		return find(a) == find(b);
	}

	//サイズを返す
	int size(int a) {
		return siz[find(a)];
	}

};

#include "testlib.h"

int main(int argc, char* argv[]){

	registerValidation(argc, argv);

	int n = inf.readInt(2, 100000, "n");
	inf.readSpace();
	int m = inf.readInt(n - 1, 100000, "m");
	inf.readEoln();
	graph g(n, false, true);
	unionfind uni(n);
	rep(i, m) {
		int a = inf.readInt(1, n, "a_i");
		inf.readSpace();
		int b = inf.readInt(1, n, "b_i");
		inf.readSpace();
		int c = inf.readInt(1, 1000000000, "c_i");
		inf.readEoln();
		ensuref(a != b, "Graph can't contain loops");
		--a, --b;
		uni.unite(a, b);
		g.add_edge(a, b, c);
	}
	inf.readEof();
	ensuref(uni.size(0) == n, "Graph should be connected");

	int ok = 0, ng = 1000000001;
	while (abs(ok - ng) > 1) {
		int mid = (ok + ng) / 2;

		vector<int> cost(n);
		fill(all(cost), INF);
		queue<pair<int, int>> que;
		que.push({ 0, 0 });
		while (not que.empty()) {
			auto [cur, c] = que.front();
			que.pop();
			if (cost[cur] < c)continue;
			cost[cur] = c;
			for (const auto& aa : g[cur]) {
				if (cost[aa.to] > c + 1 and aa.cost >= mid) {
					que.push({ aa.to, c + 1 });
					cost[aa.to] = c + 1;
				}
			}
		}
		if (cost[n - 1] != INF)ok = mid;
		else ng = mid;
	}
	vector<int> cost(n);
	fill(all(cost), INF);
	queue<pair<int, int>> que;
	que.push({ 0, 0 });
	while (not que.empty()) {
		auto [cur, c] = que.front();
		que.pop();
		if (cost[cur] < c)continue;
		cost[cur] = c;
		for (const auto& aa : g[cur]) {
			if (cost[aa.to] > c and aa.cost >= ok) {
				que.push({ aa.to, c + 1 });
				cost[aa.to] = c + 1;
			}
		}
	}
	printf("%d %d\n", ok, cost[n - 1]);

	Please AC;
}
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