슈콩

[문제]https://www.acmicpc.net/problem/1654 [소스 코드]import java.io.*;import java.util.*;public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(br.readLine()); int k = Integer.parseInt(st.nextToken()); int n = Integer.parseInt(st.nextToken()); int[] lans = ..

Collections함수 binarySearch 사용: 시간 단축 용도 [문제]https://www.acmicpc.net/problem/2295 [소스 코드]import java.io.*;import java.util.*;public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int n = Integer.parseInt(br.readLine()); int[] arr = new int[n]; for(int i=0;i list = new ArrayList(); for(int i=0..

[문제]https://www.acmicpc.net/problem/18870 [소스 코드]import java.io.*;import java.util.*;public class Main { public static void main(String[] args) throws IOException { StringBuilder sb = new StringBuilder(); BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int n = Integer.parseInt(br.readLine()); int[] arr = new int[n]; StringTokenizer st = new StringTokenizer(br.read..

[문제]https://www.acmicpc.net/problem/10816 [소스 코드]import java.io.*;import java.util.*;public class Main { public static void main(String[] args) throws IOException { HashMap hm = new HashMap(); StringBuilder sb = new StringBuilder(); BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st; int n = Integer.parseInt(br.readLine()); st = new StringTokenize..

[문제]https://www.acmicpc.net/problem/1920 [소스 코드]import java.io.*;import java.util.*;public class Main { public static void main(String[] args) throws IOException { HashSet hs = new HashSet(); BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st; int n = Integer.parseInt(br.readLine()); st = new StringTokenizer(br.readLine()); for(int i=0;i

[문제]https://www.acmicpc.net/problem/9613 [소스 코드]import java.io.*;import java.util.*;public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st; int t = Integer.parseInt(br.readLine()); while(t-->0) { st = new StringTokenizer(br.readLine()); int n = Integer.parseInt(st.nextTok..

[문제]https://www.acmicpc.net/problem/9020 [소스 코드]import java.io.*;import java.util.*;public class Main { static boolean[] prime = new boolean[10001]; public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); isPrime(); int t = Integer.parseInt(br.readLine()); while(t-->0) { int n = Integer.parseInt(br.readLine()); ..

[문제]https://www.acmicpc.net/problem/6359 [소스 코드]import java.io.*;import java.util.*;public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int t = Integer.parseInt(br.readLine()); while(t-->0) { int n = Integer.parseInt(br.readLine()); boolean[] open = new boolean[n+1]; Arrays.fill(open, ..

[문제]https://www.acmicpc.net/problem/5347 [소스 코드]import java.io.*;import java.util.*;public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st; int t = Integer.parseInt(br.readLine()); while(t-->0) { st = new StringTokenizer(br.readLine()); long a = Long.parseLong(st.nextTok..

범위 주의 ! [문제]https://www.acmicpc.net/problem/4948 [소스 코드]import java.io.*;import java.util.*;public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); while(true) { int n = Integer.parseInt(br.readLine()); if(n==0) break; if(n==1) { System.out.println(1); continue; } int result = 0;..