Submission #3773113
Source Code Expand
import java.util.Arrays; import java.util.InputMismatchException; import java.util.Scanner; public class AtCoder_Beginner_Contest_26_02 { /** * 全体処理 * @param args */ public static void main(String[] args) throws Exception { // TODO Auto-generated method stub int n = 0; n = input(); calc(n); } /** * 計算 * @param n * @throws Exception */ private static void calc(int n) throws Exception { // TODO Auto-generated method stub boolean flag = true; double pi = Math.PI; //System.out.println(flag); Scanner sc = null; int[] c = new int[n]; try { sc = new Scanner(System.in); int i = 0; while (i < n) { // System.out.println("第"+(i+1)+"番の円を入力してください: "); c[i] = sc.nextInt(); i++; } } catch (InputMismatchException e) { System.out.println("error"); } finally { sc.close(); } Arrays.sort(c); // nは奇数、偶数を判断する if (n % 2 == 0) { flag = false; } double sum_r =0,sum_w=0; double menseki_r=0,menseki_w=0; if (flag = true)// 奇数の場合 { // System.out.println("円の数が奇数"); for(int i=0;i<n;i++) { if(i%2==0) { // System.out.println(i+"番偶数"); menseki_r = Math.pow(c[i], 2)*pi; //System.out.println("面積赤"+menseki_r); sum_r = sum_r + menseki_r; } else { //System.out.println(i+"番奇数"); menseki_w = Math.pow(c[i], 2)*pi; //System.out.println("面積白"+menseki_w); sum_w = sum_w + menseki_w; } } //System.out.println("赤い部分面積:"+Math.abs(sum_r - sum_w)); System.out.println(Math.abs(sum_r - sum_w)); } else if (flag = false)// 偶数の場合 { //System.out.println("円の数が偶数"); for(int i=0;i<n;i++) { if(i%2!=0) { menseki_r = Math.pow(c[i], 2)*pi; sum_r = sum_r + menseki_r; } else { menseki_r = Math.pow(c[i], 2)*pi; sum_w = sum_w + menseki_w; } } //System.out.println("赤い部分面積:"+Math.abs(sum_r - sum_w)); System.out.println(Math.abs(sum_r - sum_w)); } else { throw new Exception("input error calc"); } } /** * 入力処理 * @return */ private static int input() { // TODO Auto-generated method stub Scanner sc = null; sc = new Scanner(System.in); //System.out.println("円の数を入力してください:"); int n; n = sc.nextInt(); return n; } }
Submission Info
Submission Time | |
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Task | B - N重丸 |
User | James |
Language | Java8 (OpenJDK 1.8.0) |
Score | 0 |
Code Size | 3555 Byte |
Status | CE |
Compile Error
./Main.java:5: error: class AtCoder_Beginner_Contest_26_02 is public, should be declared in a file named AtCoder_Beginner_Contest_26_02.java public class AtCoder_Beginner_Contest_26_02 { ^ 1 error