結果
| 問題 | No.614 壊れたキャンパス |
| ユーザー |
 りあん
|
| 提出日時 | 2017-12-14 00:42:11 |
| 言語 | C#(csc) (csc 3.9.0) |
| 結果 |
AC
|
| 実行時間 | 1,782 ms / 2,000 ms |
| コード長 | 16,055 bytes |
| コンパイル時間 | 1,320 ms |
| コンパイル使用メモリ | 120,328 KB |
| 実行使用メモリ | 180,956 KB |
| 最終ジャッジ日時 | 2024-05-08 08:07:20 |
| 合計ジャッジ時間 | 19,022 ms |
|
ジャッジサーバーID （参考情報） |
judge4 / judge3 |
（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 | 41 ms
26,804 KB |
| testcase_01 | AC | 42 ms
26,660 KB |
| testcase_02 | AC | 35 ms
26,292 KB |
| testcase_03 | AC | 39 ms
26,404 KB |
| testcase_04 | AC | 43 ms
26,788 KB |
| testcase_05 | AC | 43 ms
26,660 KB |
| testcase_06 | AC | 42 ms
28,700 KB |
| testcase_07 | AC | 39 ms
28,572 KB |
| testcase_08 | AC | 1,587 ms
141,976 KB |
| testcase_09 | AC | 1,456 ms
135,392 KB |
| testcase_10 | AC | 701 ms
82,704 KB |
| testcase_11 | AC | 1,761 ms
138,400 KB |
| testcase_12 | AC | 1,782 ms
142,568 KB |
| testcase_13 | AC | 1,735 ms
140,796 KB |
| testcase_14 | AC | 1,641 ms
145,700 KB |
| testcase_15 | AC | 635 ms
72,380 KB |
| testcase_16 | AC | 1,508 ms
148,068 KB |
| testcase_17 | AC | 1,154 ms
180,956 KB |
| testcase_18 | AC | 1,413 ms
119,672 KB |
| testcase_19 | AC | 851 ms
116,012 KB |
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc) Copyright (C) Microsoft Corporation. All rights reserved.
ソースコード
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.IO;
using System.Text;
using System.Diagnostics;
using static util;
using P = pair<int, int>;
using Binary = System.Func<System.Linq.Expressions.ParameterExpression, System.Linq.Expressions.ParameterExpression,
System.Linq.Expressions.BinaryExpression>;
using Unary = System.Func<System.Linq.Expressions.ParameterExpression, System.Linq.Expressions.UnaryExpression>;
class Program
{
static StreamWriter sw = new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false };
static Scan sc = new Scan();
const int M = 1000000007;
const double eps = 1e-11;
static readonly int[] dd = { 0, 1, 0, -1, 0 };
static void Main()
{
int n, m, k, s, t;
sc.Multi(out n, out m, out k, out s, out t);
var se = new HashSet<int>[n];
for (int i = 0; i < n; i++)
{
se[i] = new HashSet<int>();
}
se[0].Add(s);
se[n - 1].Add(t);
var e = new int[m][];
var uf = new UnionFind(n);
for (int i = 0; i < m; i++)
{
e[i] = sc.IntArr;
se[e[i][0] - 1].Add(e[i][1]);
se[e[i][0]].Add(e[i][2]);
uf.unite(e[i][0] - 1, e[i][0]);
}
if (!uf.same(0, n - 1)) {
DBG(-1);
return;
}
var lis = new int[n][];
var ind = new Dictionary<int, int>[n];
int cnt = 0;
for (int i = 0; i < n; i++)
{
ind[i] = new Dictionary<int, int>();
lis[i] = se[i].ToArray();
Array.Sort(lis[i]);
foreach (var item in lis[i])
{
ind[i].Add(item, cnt);
++cnt;
}
}
var edge = new List<pair<long, int>>[cnt];
for (int i = 0; i < cnt; i++)
{
edge[i] = new List<pair<long, int>>();
}
for (int i = 0; i < n; i++)
{
for (int j = 0; j < lis[i].Length - 1; j++)
{
edge[ind[i][lis[i][j]]].Add(make_pair((long)lis[i][j + 1] - lis[i][j], ind[i][lis[i][j + 1]]));
edge[ind[i][lis[i][j + 1]]].Add(make_pair((long)lis[i][j + 1] - lis[i][j], ind[i][lis[i][j]]));
}
}
foreach (var i in e)
{
edge[ind[i[0] - 1][i[1]]].Add(make_pair(0L, ind[i[0]][i[2]]));
}
Prt(Dijkstra(edge, ind[0][s])[ind[n - 1][t]]);
sw.Flush();
}
static long[] Dijkstra(List<pair<long, int>>[] edges, int s)
{
int n = edges.Length;
var dist = new long[n];
var q = new PriorityQueue<pair<long, int>>(){ rev = true };
for (int i = 0; i < n; ++i) dist[i] = (long)1e17;
dist[s] = 0;
q.Push(make_pair(dist[s], s));
while (q.Count > 0) {
var p = q.Pop();
foreach (var e in edges[p.v2]) {
long d = p.v1 + e.v1;
if (dist[e.v2] > d) {
dist[e.v2] = d;
q.Push(make_pair(d, e.v2));
}
}
}
return dist;
}
static void DBG(string a) => Console.WriteLine(a);
static void DBG<T>(IEnumerable<T> a) => DBG(string.Join(" ", a));
static void DBG(params object[] a) => DBG(string.Join(" ", a));
static void Prt(string a) => sw.WriteLine(a);
static void Prt<T>(IEnumerable<T> a) => Prt(string.Join(" ", a));
static void Prt(params object[] a) => Prt(string.Join(" ", a));
}
class pair<T, U> : IComparable<pair<T, U>> where T : IComparable<T> where U : IComparable<U>
{
public T v1;
public U v2;
public pair(T v1, U v2) {
this.v1 = v1;
this.v2 = v2;
}
public int CompareTo(pair<T, U> a) => v1.CompareTo(a.v1) != 0 ? v1.CompareTo(a.v1) : v2.CompareTo(a.v2);
public override string ToString() => v1 + " " + v2;
}
static class util
{
public static pair<T, U> make_pair<T, U>(T v1, U v2) where T : IComparable<T> where U : IComparable<U> => new pair<T, U>(v1, v2);
public static T sqr<T>(T a) => Operator<T>.Multiply(a, a);
public static T Max<T>(params T[] a) => a.Max();
public static T Min<T>(params T[] a) => a.Min();
public static void swap<T>(ref T a, ref T b) { var t = a; a = b; b = t; }
public static void swap<T>(this IList<T> a, int i, int j) { var t = a[i]; a[i] = a[j]; a[j] = t; }
public static T[] copy<T>(this IList<T> a) {
var ret = new T[a.Count];
for (int i = 0; i < a.Count; i++) ret[i] = a[i];
return ret;
}
}
static class Operator<T>
{
static readonly ParameterExpression x = Expression.Parameter(typeof(T), "x");
static readonly ParameterExpression y = Expression.Parameter(typeof(T), "y");
public static readonly Func<T, T, T> Add = Lambda(Expression.Add);
public static readonly Func<T, T, T> Subtract = Lambda(Expression.Subtract);
public static readonly Func<T, T, T> Multiply = Lambda(Expression.Multiply);
public static readonly Func<T, T, T> Divide = Lambda(Expression.Divide);
public static readonly Func<T, T> Plus = Lambda(Expression.UnaryPlus);
public static readonly Func<T, T> Negate = Lambda(Expression.Negate);
public static Func<T, T, T> Lambda(Binary op) => Expression.Lambda<Func<T, T, T>>(op(x, y), x, y).Compile();
public static Func<T, T> Lambda(Unary op) => Expression.Lambda<Func<T, T>>(op(x), x).Compile();
}
class Scan
{
public int Int => int.Parse(Str);
public long Long => long.Parse(Str);
public double Double => double.Parse(Str);
public string Str => Console.ReadLine().Trim();
public P Pii { get { var ar = IntArr; return new P(ar[0], ar[1]); } }
public int[] IntArr => StrArr.Select(int.Parse).ToArray();
public long[] LongArr => StrArr.Select(long.Parse).ToArray();
public double[] DoubleArr => StrArr.Select(double.Parse).ToArray();
public string[] StrArr => Str.Split(new []{' '}, System.StringSplitOptions.RemoveEmptyEntries);
bool eq<T, U>() => typeof(T).Equals(typeof(U));
T ct<T, U>(U a) => (T)Convert.ChangeType(a, typeof(T));
T cv<T>(string s) => eq<T, int>() ? ct<T, int>(int.Parse(s))
: eq<T, long>() ? ct<T, long>(long.Parse(s))
: eq<T, double>() ? ct<T, double>(double.Parse(s))
: eq<T, char>() ? ct<T, char>(s[0])
: ct<T, string>(s);
public void Multi<T>(out T a) => a = cv<T>(Str);
public void Multi<T, U>(out T a, out U b)
{ var ar = StrArr; a = cv<T>(ar[0]); b = cv<U>(ar[1]); }
public void Multi<T, U, V>(out T a, out U b, out V c)
{ var ar = StrArr; a = cv<T>(ar[0]); b = cv<U>(ar[1]); c = cv<V>(ar[2]); }
public void Multi<T, U, V, W>(out T a, out U b, out V c, out W d)
{ var ar = StrArr; a = cv<T>(ar[0]); b = cv<U>(ar[1]); c = cv<V>(ar[2]); d = cv<W>(ar[3]); }
public void Multi<T, U, V, W, X>(out T a, out U b, out V c, out W d, out X e)
{ var ar = StrArr; a = cv<T>(ar[0]); b = cv<U>(ar[1]); c = cv<V>(ar[2]); d = cv<W>(ar[3]); e = cv<X>(ar[4]); }
public void Multi<T, U, V, W, X, Y>(out T a, out U b, out V c, out W d, out X e, out Y f)
{ var ar = StrArr; a = cv<T>(ar[0]); b = cv<U>(ar[1]); c = cv<V>(ar[2]); d = cv<W>(ar[3]); e = cv<X>(ar[4]); f = cv<Y>(ar[5]); }
}
static class mymath
{
public static long Mod = 1000000007;
public static bool isprime(long a) {
if (a < 2) return false;
for (long i = 2; i * i <= a; i++) if (a % i == 0) return false;
return true;
}
public static bool[] sieve(int n) {
var p = new bool[n + 1];
for (int i = 2; i <= n; i++) p[i] = true;
for (int i = 2; i * i <= n; i++) if (p[i]) for (int j = i * i; j <= n; j += i) p[j] = false;
return p;
}
public static List<int> getprimes(int n) {
var prs = new List<int>();
var p = sieve(n);
for (int i = 2; i <= n; i++) if (p[i]) prs.Add(i);
return prs;
}
public static long[][] E(int n) {
var ret = new long[n][];
for (int i = 0; i < n; i++) { ret[i] = new long[n]; ret[i][i] = 1; }
return ret;
}
public static double[][] dE(int n) {
var ret = new double[n][];
for (int i = 0; i < n; i++) { ret[i] = new double[n]; ret[i][i] = 1; }
return ret;
}
public static long[][] pow(long[][] A, long n) {
if (n == 0) return E(A.Length);
var t = pow(A, n / 2);
if ((n & 1) == 0) return mul(t, t);
return mul(mul(t, t), A);
}
public static double[][] pow(double[][] A, long n) {
if (n == 0) return dE(A.Length);
var t = pow(A, n / 2);
if ((n & 1) == 0) return mul(t, t);
return mul(mul(t, t), A);
}
public static double dot(double[] x, double[] y) {
int n = x.Length;
double ret = 0;
for (int i = 0; i < n; i++) ret += x[i] * y[i];
return ret;
}
public static double _dot(double[] x, double[] y) {
int n = x.Length;
double ret = 0, r = 0;
for (int i = 0; i < n; i++) {
double s = ret + (x[i] * y[i] + r);
r = (x[i] * y[i] + r) - (s - ret);
ret = s;
}
return ret;
}
public static long dot(long[] x, long[] y) {
int n = x.Length;
long ret = 0;
for (int i = 0; i < n; i++) ret = (ret + x[i] * y[i]) % Mod;
return ret;
}
public static T[][] trans<T>(T[][] A) {
int n = A[0].Length, m = A.Length;
var ret = new T[n][];
for (int i = 0; i < n; i++) { ret[i] = new T[m]; for (int j = 0; j < m; j++) ret[i][j] = A[j][i]; }
return ret;
}
public static double[] mul(double a, double[] x) {
int n = x.Length;
var ret = new double[n];
for (int i = 0; i < n; i++) ret[i] = a * x[i];
return ret;
}
public static long[] mul(long a, long[] x) {
int n = x.Length;
var ret = new long[n];
for (int i = 0; i < n; i++) ret[i] = a * x[i] % Mod;
return ret;
}
public static double[] mul(double[][] A, double[] x) {
int n = A.Length;
var ret = new double[n];
for (int i = 0; i < n; i++) ret[i] = dot(x, A[i]);
return ret;
}
public static long[] mul(long[][] A, long[] x) {
int n = A.Length;
var ret = new long[n];
for (int i = 0; i < n; i++) ret[i] = dot(x, A[i]);
return ret;
}
public static double[][] mul(double a, double[][] A) {
int n = A.Length;
var ret = new double[n][];
for (int i = 0; i < n; i++) ret[i] = mul(a, A[i]);
return ret;
}
public static long[][] mul(long a, long[][] A) {
int n = A.Length;
var ret = new long[n][];
for (int i = 0; i < n; i++) ret[i] = mul(a, A[i]);
return ret;
}
public static double[][] mul(double[][] A, double[][] B) {
int n = A.Length;
var Bt = trans(B);
var ret = new double[n][];
for (int i = 0; i < n; i++) ret[i] = mul(Bt, A[i]);
return ret;
}
public static long[][] mul(long[][] A, long[][] B) {
int n = A.Length;
var Bt = trans(B);
var ret = new long[n][];
for (int i = 0; i < n; i++) ret[i] = mul(Bt, A[i]);
return ret;
}
public static long[] add(long[] x, long[] y) {
int n = x.Length;
var ret = new long[n];
for (int i = 0; i < n; i++) ret[i] = (x[i] + y[i]) % Mod;
return ret;
}
public static long[][] add(long[][] A, long[][] B) {
int n = A.Length;
var ret = new long[n][];
for (int i = 0; i < n; i++) ret[i] = add(A[i], B[i]);
return ret;
}
public static long pow(long a, long b) {
if (a >= Mod) return pow(a % Mod, b);
if (a == 0) return 0;
if (b == 0) return 1;
var t = pow(a, b / 2);
if ((b & 1) == 0) return t * t % Mod;
return t * t % Mod * a % Mod;
}
public static long inv(long a) => pow(a, Mod - 2);
public static long gcd(long a, long b) {
while (b > 0) { var t = a % b; a = b; b = t; } return a;
}
// a x + b y = gcd(a, b)
public static long extgcd(long a, long b, out long x, out long y) {
long g = a; x = 1; y = 0;
if (b > 0) { g = extgcd(b, a % b, out y, out x); y -= a / b * x; }
return g;
}
public static long lcm(long a, long b) => a / gcd(a, b) * b;
static long[] facts;
public static long[] setfacts(int n) {
facts = new long[n + 1];
facts[0] = 1;
for (int i = 0; i < n; i++) facts[i + 1] = facts[i] * (i + 1) % Mod;
return facts;
}
public static long comb(int n, int r) {
if (n < 0 || r < 0 || r > n) return 0;
if (n - r < r) r = n - r;
if (r == 0) return 1;
if (r == 1) return n;
if (facts != null && facts.Length > n) return facts[n] * inv(facts[r]) % Mod * inv(facts[n - r]) % Mod;
int[] numer = new int[r], denom = new int[r];
for (int k = 0; k < r; k++) { numer[k] = n - r + k + 1; denom[k] = k + 1; }
for (int p = 2; p <= r; p++) {
int piv = denom[p - 1];
if (piv > 1) {
int ofst = (n - r) % p;
for (int k = p - 1; k < r; k += p) { numer[k - ofst] /= piv; denom[k] /= piv; }
}
}
long ret = 1;
for (int k = 0; k < r; k++) if (numer[k] > 1) ret = ret * numer[k] % Mod;
return ret;
}
public static long[][] getcombs(int n) {
var ret = new long[n + 1][];
for (int i = 0; i <= n; i++) {
ret[i] = new long[i + 1];
ret[i][0] = ret[i][i] = 1;
for (int j = 1; j < i; j++) ret[i][j] = (ret[i - 1][j - 1] + ret[i - 1][j]) % Mod;
}
return ret;
}
// nC0, nC2, ..., nCn
public static long[] getcomb(int n) {
var ret = new long[n + 1];
ret[0] = 1;
for (int i = 0; i < n; i++) ret[i + 1] = ret[i] * (n - i) % Mod * inv(i + 1) % Mod;
return ret;
}
}
class UnionFind
{
int num;
int[] par, sz, rank;
public UnionFind(int n)
{
num = n; par = new int[n]; sz = new int[n]; rank = new int[n];
for (int i = 0; i < n; ++i) { par[i] = i; sz[i] = 1; rank[i] = 0; }
}
int find(int x) => par[x] == x ? x : (par[x] = find(par[x]));
public bool same(int x, int y) => find(x) == find(y);
public int unionsize(int x) => sz[find(x)];
public int unioncount => num;
public bool unite(int x, int y)
{
x = find(x); y = find(y);
if (x == y) return false;
--num;
if (rank[x] < rank[y]) {
par[x] = y;
sz[y] += sz[x];
}
else {
par[y] = x;
sz[x] += sz[y];
if (rank[x] == rank[y]) ++rank[x];
}
return true;
}
public bool ispar(int x) => x == find(x);
}
// the greatest element pops
class PriorityQueue<T> where T : IComparable<T> {
List<T> buf;
public bool rev = false;
public PriorityQueue() { buf = new List<T>(); }
int cmp(int i, int j) { return buf[i].CompareTo(buf[j]) * (rev ? -1 : 1); }
void swap(int i, int j) { var t = buf[i]; buf[i] = buf[j]; buf[j] = t; }
public void Push(T elem) {
int n = buf.Count;
buf.Add(elem);
while (n > 0) {
int i = (n - 1) >> 1;
if (cmp(n, i) > 0) swap(i, n);
n = i;
}
}
public T Pop() {
T ret = buf[0];
int n = buf.Count - 1;
buf[0] = buf[n];
buf.RemoveAt(n);
for (int i = 0, j; (j = (i << 1) + 1) < n; i = j) {
if (j != n - 1 && cmp(j, j + 1) < 0) ++j;
if (cmp(i, j) < 0) swap(i, j);
}
return ret;
}
public T Top { get { return buf[0]; } }
public int Count { get { return buf.Count; } }
}