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- import java.util.Random;
- import java.util.Scanner;
- public class LoadedCoinTest {
- public static void main(String[] args) {
- Scanner scanner = new Scanner(System.in);
- int probability = scanner.nextInt();
- Coin c = new Coin();
- int heads = 0;
- int n = 1000;
- for(int i = 0; i < n; i++) {
- SIDE side = c.flip();
- if(side == SIDE.HEAD) {
- heads++;
- }
- }
- if(heads > 450&&heads < 550) {
- System.out.println("YES");
- } else {
- System.out.println("NO");
- }
- c = new LoadedCoin(probability);
- heads = 0;
- for(int i = 0; i < n; i++) {
- SIDE side = c.flip();
- if(side == SIDE.HEAD) {
- heads++;
- }
- }
- if(heads > probability * 10 - 50 && heads < probability * 10 + 50) {
- System.out.println("YES");
- } else {
- System.out.println("NO");
- }
- }
- }
- enum SIDE {
- HEAD, TAIL
- }
- class Coin {
- SIDE side;
- public SIDE flip() {
- Random random = new Random();
- boolean isHead = random.nextBoolean();
- if (isHead) {
- return SIDE.HEAD;
- } else {
- return SIDE.TAIL;
- }
- }
- }
- class LoadedCoin extends Coin {
- private int probability;
- public LoadedCoin(int probability) {
- this.probability = probability;
- }
- @Override
- public SIDE flip() {
- Random random = new Random();
- int n = random.nextInt(101);
- if (n < probability){
- return SIDE.HEAD;
- }else{
- return SIDE.TAIL;
- }
- }
- }
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