004-008-005

Multidimensional Array: Weekly Points Table

Easy

Problem Description

Multidimensional Array: Weekly Points Table

Learning Objective: Manage numeric data with 2D array and implement aggregation processing

Manage weekly point card earning records. Create 2D array to record point earnings by combination of day and store (3 stores).

Test Cases

※ Output examples follow programming industry standards

Input:

2
10 20 30
15 25 35

Expected Output:

=== Weekly Points ===
Day 1: A:10pt B:20pt C:30pt = 60pt
Day 2: A:15pt B:25pt C:35pt = 75pt
Total: 135pt (2 days)

Input:

1
50 40 30

Expected Output:

=== Weekly Points ===
Day 1: A:50pt B:40pt C:30pt = 120pt
Total: 120pt (1 days)

Input:

Expected Output:

=== Weekly Points ===
Day 1: A:10pt B:10pt C:10pt = 30pt
Day 2: A:20pt B:20pt C:20pt = 60pt
Day 3: A:30pt B:30pt C:30pt = 90pt
Total: 180pt (3 days)

❌ Some tests failed

❌ エラー発生

Your Solution

Current Mode:● My Code

import java.util.Scanner;
public class Solution {
public static void main(String[] args) {
  // ユーザー入力を読むためのキーボードからの入力を読むScannerオブジェクトを作成
  Scanner sc = new Scanner(System.in);
  // ユーザーからの入力値を読んで格納
  int n = sc.nextInt();
  int[][] points = new int[n][3];
  // アイテムをループして処理
  for (int i = 0; i < n; i++) {
  // アイテムをループして処理
  for (int j = 0; j < 3; j++) {
  // ユーザーからの入力値を読んで格納
  points[i][j] = sc.nextInt();
  }
  }
  // コンソール経由でユーザーに出力を表示
  System.out.println("=== Weekly Points ===");
  String[] stores = {"A", "B", "C"};
  int grandTotal = 0;
  // アイテムをループして処理
  for (int i = 0; i < n; i++) {
  // コンソール経由でユーザーに出力を表示
  System.out.print("Day " + (i + 1) + ": ");
  int dayTotal = 0;
  // アイテムをループして処理
  for (int j = 0; j < 3; j++) {
  // コンソール経由でユーザーに出力を表示
  System.out.print(stores[j] + ":" + points[i][j] + "pt ");
  dayTotal += points[i][j];
  grandTotal += points[i][j];
  }
  // コンソール経由でユーザーに出力を表示
  System.out.println("= " + dayTotal + "pt");
  }
  // コンソール経由でユーザーに出力を表示

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