Saturday, October 17, 2015

잃어버린 페이지

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import java.util.*;

public class Main {

 public static void main(String[] args) {
  // TODO Auto-generated method stub
  
  Scanner sc = new Scanner(System.in);
  
  int N = sc.nextInt();
  int P = sc.nextInt();
  
  int pageArrayRow = N/4;
  int[][] pageArray = new int[pageArrayRow][4];
  
  int number = 1;
  for(int i=0; i<pageArrayRow; i++){
   pageArray[i][0] = number++;
   pageArray[i][1] = number++;
  }
  
  for(int i=N/4-1; i>=0; i--){
   pageArray[i][2] = number++;
   pageArray[i][3] = number++;
  }
 
  int index = 0;
  if(P > N/2){
   if(P%2 == 0){
    index = Math.abs((P-N/2)/2 - (N/4));
   }else{
    index = Math.abs((P-N/2)/2 - (N/4-1));
   }
   
  }else{
   index = (P-1)/2;
  }
  
  int[] answer = new int[3];
  int answerIndex = 0;
  for(int i=0; i<4; i++){
   if(pageArray[index][i] != P){
     answer[answerIndex++]= pageArray[index][i];
   }
  }
  
  System.out.println(answer[0]+" "+answer[1]+" "+answer[2]);
  
  
 }

}

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