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DrawingBook.java
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44 lines (42 loc) · 2.03 KB
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package hackerrank;
public class DrawingBook {
static int pageCount(int n, int p) {
//n쪽불량의 책에서 p쪽을 몇 번의 책장을 넘겨야 가장 빠르게 찾을 수 있을까.
int totalpageFromFront = n/2;
int targetpageFromFront = p/2;
int targetpageFromBack = totalpageFromFront - targetpageFromFront;
System.out.println(totalpageFromFront + ", "+ targetpageFromFront +", " + targetpageFromBack);
return Math.min(targetpageFromFront, targetpageFromBack);
}
public static void main(String[] args) {
System.out.println(pageCount(5, 1)+", ans: 0"); //앞
System.out.println(pageCount(5, 2)+", ans: 1"); //앞
System.out.println(pageCount(5, 3)+", ans: 1"); //앞뒤 동일
System.out.println(pageCount(5, 4)+", ans: 0"); //뒤
System.out.println(pageCount(5, 5)+", ans: 0"); //뒤
System.out.println();
System.out.println(pageCount(6, 1)+", ans: 0"); //앞부터
System.out.println(pageCount(6, 2)+", ans: 1"); //앞부터
System.out.println(pageCount(6, 3)+", ans: 1"); //앞
System.out.println(pageCount(6, 4)+", ans: 1"); //뒤
System.out.println(pageCount(6, 5)+", ans: 1"); //뒤
System.out.println(pageCount(6, 6)+", ans: 0"); //뒤
/*
System.out.println(pageCount(7, 1)+", ans: 0"); //앞부터
System.out.println(pageCount(7, 2)+", ans: 1"); //앞부터
System.out.println(pageCount(7, 3)+", ans: 1"); //앞부터
System.out.println(pageCount(7, 4)+", ans: 1"); //뒤뷰터
System.out.println(pageCount(7, 5)+", ans: 1");
System.out.println(pageCount(7, 6)+", ans: 0");
System.out.println(pageCount(7, 7)+", ans: 0");
System.out.println(pageCount(8, 1)+", ans: 0"); //앞부터
System.out.println(pageCount(8, 2)+", ans: 1"); //앞부터
System.out.println(pageCount(8, 3)+", ans: 1"); //앞부터
System.out.println(pageCount(8, 4)+", ans: 2");
System.out.println(pageCount(8, 5)+", ans: 2");
System.out.println(pageCount(8, 6)+", ans: 1");
System.out.println(pageCount(8, 7)+", ans: 1");
System.out.println(pageCount(8, 8)+", ans: 0");
*/
}
}