結果

問題 No.461 三角形はいくつ？
ユーザー kuuso1kuuso1
提出日時 2016-12-12 07:27:47
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 3,259 ms / 5,000 ms
コード長 4,361 bytes
コンパイル時間 1,289 ms
コンパイル使用メモリ 109,824 KB
実行使用メモリ 24,584 KB
最終ジャッジ日時 2024-05-07 03:00:09
合計ジャッジ時間 41,768 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge2
このコードへのチャレンジ
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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 34 ms
20,352 KB
testcase_01 AC 34 ms
20,224 KB
testcase_02 AC 34 ms
20,352 KB
testcase_03 AC 31 ms
19,840 KB
testcase_04 AC 40 ms
20,480 KB
testcase_05 AC 1,354 ms
24,320 KB
testcase_06 AC 822 ms
24,456 KB
testcase_07 AC 952 ms
24,584 KB
testcase_08 AC 665 ms
24,440 KB
testcase_09 AC 38 ms
20,096 KB
testcase_10 AC 232 ms
24,448 KB
testcase_11 AC 1,125 ms
24,324 KB
testcase_12 AC 501 ms
24,308 KB
testcase_13 AC 1,628 ms
24,456 KB
testcase_14 AC 1,671 ms
24,056 KB
testcase_15 AC 1,606 ms
24,444 KB
testcase_16 AC 1,318 ms
21,476 KB
testcase_17 AC 1,280 ms
21,608 KB
testcase_18 AC 1,812 ms
24,444 KB
testcase_19 AC 1,745 ms
24,324 KB
testcase_20 AC 1,586 ms
24,324 KB
testcase_21 AC 1,672 ms
24,320 KB
testcase_22 AC 1,643 ms
24,440 KB
testcase_23 AC 935 ms
24,324 KB
testcase_24 AC 886 ms
24,328 KB
testcase_25 AC 43 ms
21,672 KB
testcase_26 AC 44 ms
21,552 KB
testcase_27 AC 3,259 ms
24,432 KB
testcase_28 AC 45 ms
21,428 KB
testcase_29 AC 398 ms
24,576 KB
testcase_30 AC 208 ms
24,180 KB
testcase_31 AC 762 ms
24,448 KB
testcase_32 AC 973 ms
24,308 KB
testcase_33 AC 42 ms
21,420 KB
testcase_34 AC 41 ms
21,588 KB
testcase_35 AC 42 ms
21,648 KB
testcase_36 AC 950 ms
24,564 KB
testcase_37 AC 1,015 ms
24,440 KB
testcase_38 AC 997 ms
24,320 KB
testcase_39 AC 1,045 ms
24,320 KB
testcase_40 AC 1,018 ms
24,452 KB
testcase_41 AC 1,000 ms
24,440 KB
testcase_42 AC 1,215 ms
24,568 KB
testcase_43 AC 1,188 ms
24,580 KB
testcase_44 AC 1,251 ms
24,452 KB
権限があれば一括ダウンロードができます
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

diff # 

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;

class TEST{
	static void Main(){
		Sol mySol =new Sol();
		mySol.Solve();
	}
}

class Sol{
	public void Solve(){
		
		List<Q> Bottom = new List<Q>();
		List<Q> L = new List<Q>();
		List<Q> R = new List<Q>();
		Bottom.Add(new Q(0,1+0));
		L.Add(new Q(1,1+0));
		R.Add(new Q(1,1+0));
		
		
		for(int i=0;i<N;i++){
			if(P[i] == 0){
				Bottom.Add(new Q(B[i],(A[i]+B[i])));
			}else if(P[i] == 1){
				L.Add(new Q(A[i],B[i]+A[i]));
			}else{
				R.Add(new Q(A[i],B[i]+A[i]));
			}
		}
		Bottom.Sort();
		HashSet<Q> BH = new HashSet<Q>();
		foreach(var lb in Bottom)BH.Add(lb);
		
//Console.WriteLine(String.Join(" ",Bottom));
		long ans = 0;
		foreach(var le in L){
			foreach(var re in R){
				var h = le - (1 - re);
				if(h < 0) continue;
				var uh = Q.Min(le,re);
				
				int l = 0;
				int r = Bottom.Count;
				int c = 0;
				while(r-l>1){
					c = (r+l)/2;
					if(Bottom[c] < uh){
						l = c;
					}else{
						r = c;
					}
				}
//Console.WriteLine("{0}.Contained? {1}",h,BH.Contains(h));
				long tria = 0;
				if(h == 0){
					tria = l;
					if(l+1<Bottom.Count && Bottom[l+1] == uh) tria++;
				}else if(h == uh){
					tria = l+1;
				}else{
					tria = l+1;
					if(BH.Contains(h)){
						tria--;
					}
					if(l+1<Bottom.Count && Bottom[l+1] == uh) tria++;
				}
//Console.WriteLine("le:{0},re:{1},h:{2},uh,{3},tria;{4}",le,re,h,uh,tria);
				ans += tria;
			}
		}
		
		Console.WriteLine(ans);
		
		
	}
	
	
	
	
	int N;
	long[] P,A,B;
	public Sol(){
		N = ri();
		P = new long[N];
		A = new long[N];
		B = new long[N];
		for(int i=0;i<N;i++){
			var d = rla();
			P[i] = d[0];
			A[i] = d[1];
			B[i] = d[2];
		}
	}

	static String rs(){return Console.ReadLine();}
	static int ri(){return int.Parse(Console.ReadLine());}
	static long rl(){return long.Parse(Console.ReadLine());}
	static double rd(){return double.Parse(Console.ReadLine());}
	static String[] rsa(char sep=' '){return Console.ReadLine().Split(sep);}
	static int[] ria(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>int.Parse(e));}
	static long[] rla(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>long.Parse(e));}
	static double[] rda(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>double.Parse(e));}
}

struct Q:IComparable<Q> {
	long num;
	long den;
	public static long gcd(long a,long b){
		return a==0?b:gcd(b%a,a);
	}
	public static Q Red(Q x){
		long n=x.Num;
		long d=x.Den;
		long g=gcd(Math.Abs(n),Math.Abs(d));
		n/=g;
		d/=g;
		if(d<0){n*=-1;d*=-1;}
		return new Q(n,d);
	}
	
	public int CompareTo(Q t){
		var d = num*t.den-den*t.num;
		return d > 0 ? 1 : d < 0 ? -1 : 0;
	}
	
	public long Num{
		get{return num;}
		set{this.num=value;}
	}
	public long Den{
		get{return den;}
		set{this.den=value;}
	}
	
	public Q(long n_,long d_){
		if(d_<0){ n_*=-1;d_*=-1;}
		long g=gcd(Math.Abs(n_),Math.Abs(d_));
		n_/=g;
		d_/=g;
		num=n_;den=d_;
	}
	
	public static implicit operator Q(long n){
		return new Q(n,1);
	}
	public static Q operator+(Q a,Q b){
		 return (new Q(a.Num*b.Den+a.Den*b.Num,a.Den*b.Den));
	}
	public static Q operator-(Q a,Q b){
		 return (new Q(a.Num*b.Den-a.Den*b.Num,a.Den*b.Den));
	}
	public static Q operator-(Q a){
		 return (new Q(-a.Num,a.Den));
	}
	public static Q operator*(Q a,Q b){
		 return (new Q(a.Num*b.Num,a.Den*b.Den));
	}
	public static Q operator/(Q a,Q b){
		 return (new Q(a.Num*b.Den,a.Den*b.Num));
	}
	public static bool operator>(Q a,Q b){
		 return a.CompareTo(b) > 0;
	}
	public static bool operator<(Q a,Q b){
		 return a.CompareTo(b) < 0;
	}
	public static bool operator>=(Q a,Q b){
		 return a.CompareTo(b) >= 0;
	}
	public static bool operator<=(Q a,Q b){
		 return a.CompareTo(b) <= 0;
	}
	
	public static bool operator==(Q a,Q b){
		 return a.Equals(b);
	}
	public static bool operator!=(Q a,Q b){
		 return !(a==b);
	}
	
	public override bool Equals(System.Object obj){
		if(obj == null) return false;
		Q p = (Q) obj;
		if((System.Object) p == null ) return false;
		return den * p.num == num * p.den;
	}
	public override int GetHashCode(){
		return (den^num).GetHashCode();
	}
	
	
	public static Q Min(Q a,Q b){
		 return a < b ? a : b;
	}
	public override String ToString(){
		return this.Num.ToString()+"/"+this.Den.ToString();
	}
}
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