슈콩

[문제]https://www.acmicpc.net/problem/2839 [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 result = Integer.MAX_VALUE; for(int i=0;3*i

[문제]https://www.acmicpc.net/problem/2312 [소스 코드]import java.io.*;import java.util.*;public class Main { static boolean[] prime = new boolean[100001]; static List list = new ArrayList(); public static void main(String[] args) throws IOException { isPrime(); BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int t = Integer.parseInt(br.readLine()); while(t-->0) { int n..

[문제]https://www.acmicpc.net/problem/2292 [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 i = 1; int cnt = 1; while(n>cnt) { cnt += 6 * i; i++; } System.out.println(i); }}

[문제]https://www.acmicpc.net/user/sheep0125 [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)); long n = Long.parseLong(br.readLine()); StringBuilder sb = new StringBuilder(); if(n==0) { System.out.println(0); return; } while(n..

[문제]https://www.acmicpc.net/problem/2004 [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()); long n = Long.parseLong(st.nextToken()); long m = Long.parseLong(st.nextToken()); int two = cnt(..

[문제]https://www.acmicpc.net/problem/1963 [소스 코드]import java.io.*;import java.util.*;public class Main { static int a,b; static boolean[] prime = new boolean[10000]; public static void main(String[] args) throws IOException { isPrime(); BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st; int t = Integer.parseInt(br.readLine()); while(t-->..

[문제]https://www.acmicpc.net/problem/1929 [소스 코드]import java.io.*;import java.util.*;public class Main { static int n,m; static boolean[] prime = new boolean[1000001]; public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(br.readLine()); m = Integer.parseInt(st.nex..

[문제]https://www.acmicpc.net/problem/1790 [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 n = Integer.parseInt(st.nextToken()); int k = Integer.parseInt(st.nextToken()); ..

prime을 구하는 경우, 제곱근까지 확인 => 소수 정리 완료 후, 범위 내 prime list에 저장 ! [문제]https://www.acmicpc.net/problem/1747 [소스 코드]import java.io.*;import java.util.*;public class Main { static int n; static boolean[] prime = new boolean[2000001]; static List list = new ArrayList(); public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(Syste..

[문제]https://www.acmicpc.net/problem/1735 [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 a1 = Integer.parseInt(st.nextToken()); int b1 = Integer.parseInt(st.nextToken()..