백준 : 13548

https://www.acmicpc.net/problem/13458

13458번: 시험 감독

 

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
 
public class B13458 {
    static int N;
    static int[] arr;
    static int B,C;
    
    public static void main(String[] args) throws NumberFormatException, IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st;
        
        N = Integer.parseInt(br.readLine());
        arr = new int[N];
        st = new StringTokenizer(br.readLine());
        for(int i=0;i<N;i++) {
            arr[i] = Integer.parseInt(st.nextToken());
        }
        st = new StringTokenizer(br.readLine());
        B = Integer.parseInt(st.nextToken());
        C = Integer.parseInt(st.nextToken());
        
        long ans = 0L;
        
        for(int i=0;i<N;i++) {
            arr[i] -= B;
            ans++;
            if(arr[i] <= 0) continue;
            ans += arr[i] / C;
            
            if(arr[i] % C != 0) {
                ans++;
            }
        }
        
        System.out.println(ans);
        
    }
}