우주수첩의 우주먼지

https://www.acmicpc.net/problem/19583  package BKD_0x15_Hash;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.HashSet;import java.util.StringTokenizer;public class BOJ_19583 { public static void main(String[] args) throws IOException { HashSet set = new HashSet(); BufferedReader br = new BufferedReader(new InputStreamRead..

https://www.acmicpc.net/problem/11478  package BKD_0x15_Hash;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.HashSet;public class BOJ_11478 { public static void main(String[] args) throws IOException { HashSet set = new HashSet(); BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String inp..

https://www.acmicpc.net/problem/16165  package BKD_0x15_Hash;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.*;public class BOJ_16165 { public static void main(String[] args) throws IOException { HashMap memberMap = new HashMap(); //key : member HashMap groupMap = new HashMap(); //key : group BufferedReader br = n..

https://www.acmicpc.net/problem/9375 package BKD_0x15_Hash;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.HashMap;import java.util.Iterator;public class BOJ_9375 { public static void main(String[] args) throws IOException { BufferedReader br= new BufferedReader(new InputStreamReader(System.in)); HashMap map = new HashMa..

https://www.acmicpc.net/problem/17219 package BKD_0x15_Hash;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.HashMap;import java.util.Iterator;import java.util.StringTokenizer;public class BOJ_17219 { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.i..

https://www.acmicpc.net/problem/13414 package BKD_0x15_Hash;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.LinkedHashSet;import java.util.StringTokenizer;public class BOJ_13414 { public static void main(String[] args) throws IOException { LinkedHashSet set = new LinkedHashSet(); BufferedReader br = new BufferedReader(ne..

https://www.acmicpc.net/problem/1620 package BKD_0x15_Hash;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.HashMap;import java.util.StringTokenizer;public class BOJ_1620 { public static void main(String[] args) throws IOException { HashMap strKey = new HashMap(); HashMap intKey = new HashMap(); BufferedReader br =..

https://www.acmicpc.net/problem/7785 package BKD_0x15_Hash;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.*;public class BOJ_7785 { public static void main(String[] args) throws IOException { HashSet set = new HashSet(); BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int N = Integer.par..

https://www.acmicpc.net/problem/1182  package BKD_0x0C_BackTracking;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.StringTokenizer;public class BOJ_1182 { static int N,S; static int[] arr= new int[30]; static int count=0; public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReade..

https://www.acmicpc.net/problem/9663 package BKD_0x0C_BackTracking;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;public class BOJ_9663 { static int N; static int count=0; static boolean[] visited1 = new boolean[40]; static boolean[] visited2 = new boolean[40]; static boolean[] visited3= new boolean[40]; public static void main(String[..