문제 풀이 package step7; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; public class Main { public static void main(String[] args) throws IOException{ //단어의 개수 BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String str = br.readLine(); StringTokenizer st = new StringTokenizer(str," "); //countTo..

문제 풀이 package step7; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Main { public static void main(String[] args) throws IOException{ //단어 공부 BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String str = br.readLine(); int[] arr = new int[26]; for(int i = 0; i < arr.length; i++) { arr[i] = 0; } for(int i = 0; i <..

문제 풀이 package step7; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; public class Main { public static void main(String[] args) throws IOException{ //문자열 반복 BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int t = Integer.parseInt(br.readLine());//테스트 케이스의 개수 StringTokenizer st; StringBuilder ..

문제 풀이 package step7; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Main { public static void main(String[] args) throws IOException { //알파벳 찾기 BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String s = br.readLine(); int[] arr = new int[26]; //배열 -1로 초기화 for(int i = 0; i < 26; i++) { arr[i] = -1; } for(int i = ..

문제 풀이 package step7; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Main { public static void main(String[] args) throws IOException{ //숫자의 합 BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int n = Integer.parseInt(br.readLine());//숫자의 개수 String str = br.readLine(); int sum = 0; for(int i = 0; i < n; i++) { sum ..

문제 풀이 package step7; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Main { public static void main(String[] args) throws IOException{ //아스키 코드 BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int value = br.readLine().charAt(0); System.out.println(value); br.close(); //System.in은 아스키값을 저장함 //int a = System.in.rea..

문제 풀이 package step6; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Main { public static void main(String[] args) throws IOException{ //한수 BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int n = Integer.parseInt(br.readLine()); System.out.println(hansu(n)); br.close(); } public static int hansu(int n) { int cnt ..

문제 풀이 package step6; public class Main { public static void main(String[] args) { //셀프 넘버 boolean[] arr = new boolean[10001];//1~10000까지 for(int i = 1; i