Language: Java

import java.util.Map.Entry;
import java.io.*;
import java.util.*;

public class Main {
	
	public static void main(String[] args) throws IOException {Scanner sc = new Scanner(file);
		FastScanner sc = new FastScanner(System.in);
		
		int N = sc.nextInt();
		int[] a = new int[N];
		for(int i = 0; i < N; i++) a[i] = sc.nextInt();
		int[] b = new int[N];
		for(int i = 0; i < N; i++) b[i] = sc.nextInt();
		
		long sum = 0;
		for(int i = 0; i < N; i++){
			if(a[i] < b[i]){
				sum -= (b[i] - a[i]);
			}else if(a[i] > b[i]){
				sum += (a[i] - b[i]) * 2;
			}
		}
		if(sum <= 0)
			System.out.println("Yes");
		else
			System.out.println("No");
	}
}

class FastScanner {
    private InputStream in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    public FastScanner(InputStream in) {
		this.in = in;
	}
    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }
    private int readByte() {
    	if (hasNextByte()) return buffer[ptr++];
    	else return -1;
    }
    private static boolean isPrintableChar(int c){
    	return 33 <= c && c <= 126;
    }
    public boolean hasNext() {
    	while(hasNextByte() && !isPrintableChar(buffer[ptr]))
    		ptr++; return hasNextByte();
    }
    public String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }
    public long nextLong() {
        if (!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }
    public int nextInt() {
        long nl = nextLong();
        if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
        return (int) nl;
    }
    public double nextDouble() {
    	return Double.parseDouble(next());
    }
}


Compiler output:
Main.java:7: error: cannot find symbol
	public static void main(String[] args) throws IOException {Scanner sc = new Scanner(file);
	                                                                                    ^
  symbol:   variable file
  location: class Main
Main.java:8: error: variable sc is already defined in method main(String[])
		FastScanner sc = new FastScanner(System.in);
		            ^
2 errors