BAEKJOON 13458번: 시험 감독

import java.util.Scanner;
 
import static java.lang.System.in;
 
/**
 * Created by K on 2017-04-09.
 */
public class Practice1 {
 
    public static void main(String agrs[]) {
        Scanner scanner = new Scanner(in);
 
        int classNum = 0;
        int[] studentNum;
        int profOverseeNum;
        int secondProfOverseeNum;
 
        if(scanner.hasNextInt())
            classNum = scanner.nextInt();
        else
            return ;
 
        if(1 > classNum  || classNum > 1000000)
            return ;
 
        studentNum = new int[classNum];
        for(int i = 0; i < classNum; i++){
            if(scanner.hasNextInt())
                studentNum[i] = scanner.nextInt();
            else
                return ;
 
            if(1 > studentNum[i]  || studentNum[i] > 1000000)
                return ;
        }
 
        if(scanner.hasNextInt())
            profOverseeNum = scanner.nextInt();
        else
            return ;
        if(1 > profOverseeNum  || profOverseeNum > 1000000)
            return ;
 
        if(scanner.hasNextInt())
            secondProfOverseeNum = scanner.nextInt();
        else
            return ;
        if(1 > secondProfOverseeNum  || secondProfOverseeNum > 1000000)
            return ;
 
        InputHandler inputHandler = new InputHandler(classNum, studentNum, profOverseeNum, secondProfOverseeNum);
 
        if(inputHandler.checkInputs() == true) {
            inputHandler.execProcess();
            System.out.print(inputHandler.getResultNum());
        }
 
        return ;
    }
 
}
 
class InputHandler {
 
    public int classNum;
    public int[] studentNum;
    public int profOverseeNum;
    public int secondProfOverseeNum;
 
    public long resultNum;
 
    public long getResultNum() {
        return resultNum;
    }
 
    public InputHandler(int classNum, int[] studentNum, int profOverseeNum, int secondProfOverseeNum) {
        this.classNum = classNum;
        this.studentNum = studentNum;
        this.profOverseeNum = profOverseeNum;
        this.secondProfOverseeNum = secondProfOverseeNum;
    }
 
    public boolean checkInputs() {
        if(1 > classNum  || classNum > 1000000)
            return false;
        for(int temp : studentNum) {
            if(1 > temp  || temp > 1000000)
                return false;
        }
        if(1 > profOverseeNum  || profOverseeNum > 1000000)
            return false;
        if(1 > secondProfOverseeNum  || secondProfOverseeNum > 1000000)
            return false;
        return true;
    }
 
    public void execProcess() {
        this.resultNum = 0;
 
        for(int i = 0; i < classNum; i++) {
            resultNum++;
 
            int remainStNum = studentNum[i] - profOverseeNum;
 
            if(remainStNum <= 0) continue;
            else {
                resultNum++;
                int secondProfNum = remainStNum / secondProfOverseeNum;
                if(remainStNum % secondProfOverseeNum == 0)
                    resultNum = resultNum + secondProfNum - 1;
                else {
                    resultNum = resultNum + secondProfNum;
                }
            }
        }
    }
}