結果

問題 No.368 LCM of K-products
ユーザー threepipes_sthreepipes_s
提出日時 2016-04-29 23:18:03
言語 Java21
(openjdk 21)
結果
WA  
実行時間 -
コード長 4,580 bytes
コンパイル時間 2,590 ms
コンパイル使用メモリ 90,872 KB
実行使用メモリ 54,792 KB
最終ジャッジ日時 2024-04-15 05:54:31
合計ジャッジ時間 6,523 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge2
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 WA -
testcase_01 AC 109 ms
52,532 KB
testcase_02 WA -
testcase_03 AC 114 ms
52,676 KB
testcase_04 AC 121 ms
53,812 KB
testcase_05 AC 123 ms
52,664 KB
testcase_06 AC 55 ms
50,116 KB
testcase_07 WA -
testcase_08 AC 54 ms
50,264 KB
testcase_09 WA -
testcase_10 WA -
testcase_11 AC 56 ms
50,352 KB
testcase_12 AC 54 ms
50,124 KB
testcase_13 WA -
testcase_14 WA -
testcase_15 AC 121 ms
52,768 KB
testcase_16 WA -
testcase_17 WA -
testcase_18 WA -
testcase_19 WA -
testcase_20 WA -
testcase_21 WA -
testcase_22 WA -
testcase_23 AC 54 ms
50,408 KB
testcase_24 AC 54 ms
50,156 KB
testcase_25 WA -
testcase_26 AC 54 ms
50,404 KB
testcase_27 AC 55 ms
50,500 KB
testcase_28 AC 53 ms
50,432 KB
testcase_29 AC 54 ms
50,516 KB
testcase_30 WA -
testcase_31 WA -
testcase_32 AC 55 ms
50,136 KB
testcase_33 WA -
testcase_34 AC 95 ms
51,236 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.ArrayDeque;
import java.util.HashMap;
import java.util.Queue;
 
public class Main {
	public static void main(String[] args) throws NumberFormatException,
	IOException {Main solve = new Main();solve.solve();}
	void dump(int[]a){for(int i=0;i<a.length;i++)System.out.print(a[i]+" ");System.out.println();}
	void dump(int[]a,int n){for(int i=0;i<a.length;i++)System.out.printf("%"+n+"d",a[i]);System.out.println();}
	void dump(long[]a){for(int i=0;i<a.length;i++)System.out.print(a[i]+" ");System.out.println();}
	void dump(char[]a){for(int i=0;i<a.length;i++)System.out.print(a[i]);System.out.println();}
	long pow(long a,int n){long r=1;while(n>0){if((n&1)==1)r*=a;a*=a;n>>=1;}return r;}
	String itob(int a,int l){return String.format("%"+l+"s",Integer.toBinaryString(a)).replace(' ','0');}
	void sort(int[]a){m_sort(a,0,a.length,new int[a.length]);}
	void m_sort(int[]a, int s, int sz, int[]b){
		if(sz<7){for(int i=s;i<s+sz;i++)for(int j=i;j>s&&a[j-1]>a[j];j--)swap(a, j, j-1);return;}
		m_sort(a,s,sz/2,b);m_sort(a,s+sz/2,sz-sz/2,b);int idx=s;int l=s,r=s+sz/2;final int le=s+sz/2,re=s+sz;
		while(l<le&&r<re){if(a[l]>a[r])b[idx++]=a[r++];else b[idx++]=a[l++];}
		while(r<re)b[idx++]=a[r++];while(l<le)b[idx++]=a[l++];for(int i=s;i<s+sz;i++)a[i]=b[i];
	} /* qsort(3.5s)<<msort(9.5s)<<<shuffle+qsort(17s)<Arrays.sort(Integer)(20s) */
	void swap(int[] a,int i,int j){final int t=a[i];a[i]=a[j];a[j]=t;}
	int binarySearchSmallerMax(int[]a,int v) // get maximum index which a[idx]<=v
	{int l=0,r=a.length-1,s=0;while(l<=r){int m=(l+r)/2;if(a[m]>v)r=m-1;else{l=m+1;s=m;}}return a[s]>v?-1:s;}
	void solve() throws NumberFormatException, IOException{
		final ContestScanner in = new ContestScanner();
		Writer out = new Writer();
		int n = in.nextInt();
		int k = in.nextInt();
		int[] a = new int[n];
		if(k==1){
			long ans = 1;
			for(int i=0; i<n; i++){
				int t = in.nextInt();
				ans = (ans*t%mod)*modinv((int)gcd(ans, t), mod);
			}
			System.out.println(ans);
			return;
		}
		a[0] = in.nextInt();
		long sum = a[0];
		long gcd = a[0];
		for(int i=1; i<n; i++){
			a[i] = in.nextInt();
			gcd = gcd(gcd, a[i]);
			sum = (sum*a[i])%mod;
		}
		System.out.println(sum*modinv((int)gcd%mod, mod));
	}
	final int mod = 1000000007;
	static long gcd(long a, long b){
		return b == 0 ? a : gcd(b, a % b);
	}
	int modinv(int n, int mod){
		return modpow(n, mod-2, mod);
	}
	int modpow(int n, int a, int mod){
		long res = 1;
		while(a > 0){
			if((a&1)==1) res = (res*n)%mod;
			n = (int)(((long)n*n)%mod);
			a >>= 1;
		}
		return (int)res;
	}
}
 
class MultiSet<T> extends HashMap<T, Integer>{
	@Override
	public Integer get(Object key){return containsKey(key)?super.get(key):0;}
	public void add(T key,int v){put(key,get(key)+v);}
	public void add(T key){put(key,get(key)+1);}
	public void sub(T key)
	{final int v=get(key);if(v==1)remove(key);else put(key,v-1);}
}
class Timer{
	long time;
	public void set(){time=System.currentTimeMillis();}
	public long stop(){return time=System.currentTimeMillis()-time;}
	public void print()
	{System.out.println("Time: "+(System.currentTimeMillis()-time)+"ms");}
	@Override public String toString(){return"Time: "+time+"ms";}
}
class Writer extends PrintWriter{
	public Writer(String filename)throws IOException
	{super(new BufferedWriter(new FileWriter(filename)));}
	public Writer()throws IOException{super(System.out);}
}
class ContestScanner {
	private InputStreamReader in;private int c=-2;
	public ContestScanner()throws IOException 
	{in=new InputStreamReader(System.in);}
	public ContestScanner(String filename)throws IOException
	{in=new InputStreamReader(new FileInputStream(filename));}
	public String nextToken()throws IOException {
		StringBuilder sb=new StringBuilder();
		while((c=in.read())!=-1&&Character.isWhitespace(c));
		while(c!=-1&&!Character.isWhitespace(c)){sb.append((char)c);c=in.read();}
		return sb.toString();
	}
	public String readLine()throws IOException{
		StringBuilder sb=new StringBuilder();if(c==-2)c=in.read();
		while(c!=-1&&c!='\n'&&c!='\r'){sb.append((char)c);c=in.read();}
		return sb.toString();
	}
	public long nextLong()throws IOException,NumberFormatException
	{return Long.parseLong(nextToken());}
	public int nextInt()throws NumberFormatException,IOException
	{return(int)nextLong();}
	public double nextDouble()throws NumberFormatException,IOException 
	{return Double.parseDouble(nextToken());}
}
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