b31403,b30802

https://www.acmicpc.net/problem/31403

https://www.acmicpc.net/problem/30802

 

 

 

백준을 오랜만에 풀려했더니
입력받는 방법을 완전 까먹어서 감을 잡고자 풀었다.
이전에 공부했던 Stream을 활용하여
배열로 바로 넣어서 계산하여 정답을 출력하였다.

 

 

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class b31403 {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int a = Integer.parseInt(br.readLine());
        int b = Integer.parseInt(br.readLine());
        int c = Integer.parseInt(br.readLine());
        System.out.println((a+b-c));
        System.out.println((Integer.parseInt(String.valueOf(a)+String.valueOf(b))-c));
    }
}


//=====================================================================================


import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;

public class b30802 {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader((System.in)));
        Long N = Long.parseLong(br.readLine());
        long[] arr = Arrays
                .stream(br.readLine().split(" "))
                .mapToLong(Long::parseLong)
                .toArray();
        long[] pf = Arrays.stream(br.readLine().split(" "))
                .mapToLong(Long::parseLong)
                .toArray();
        long ans = 0;
        for(int i = 0 ; i < arr.length ; i++) {
            ans += arr[i] / pf[0];
            ans = arr[i] % pf[0] == 0 ? ans : ans+1;
        }
        System.out.println(ans);
        System.out.println(N/pf[1]+" "+N%pf[1]);
    }
}