提出 #76268707

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ソースコード 拡げる

import java.io.*;
import java.util.*;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st;

        String line = br.readLine();
        if (line == null) return;
        st = new StringTokenizer(line);
        int N= Integer.parseInt(st.nextToken());
        int M=Integer.parseInt(st.nextToken());
        int[] shari=new int[N];
        int[] neta=new int[M];

        line = br.readLine();
        while (line != null && line.trim().isEmpty()) {
                line = br.readLine();
            }
        if(line==null) return;

            st = new StringTokenizer(line);
        for (int i = 0; i < N; i++) {

            int weight = Integer.parseInt(st.nextToken());
           shari[i]=weight;

        }
        
         line = br.readLine();
        while (line != null && line.trim().isEmpty()) {
                line = br.readLine();
            }
            if(line==null) return;

            st = new StringTokenizer(line);
        
        for (int i = 0; i < M; i++) {
           
            int weight = Integer.parseInt(st.nextToken());
           neta[i]=weight;

        }
        Arrays.sort(shari);
        Arrays.sort(neta);
        int shariIndex=0;
        int netaIndex=0;
        int count=0;
        
        while(shariIndex<N && netaIndex<M){
            if(neta[netaIndex]<=(long)shari[shariIndex]*2){
                netaIndex++;
                shariIndex++;
                count++;
            }else{
                shariIndex++;
            }
        }
        System.out.println(count);
    }
}

提出情報

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