Tastynut

import java.util.*; import java.io.*; public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String s = br.readLine(); br.close(); StringTokenizer st = new StringTokenizer(s," "); double a = Integer.parseInt(st.nextToken()); double b = Integer.parseInt(st.nextToken()); double v = Integer.parseInt(s..

import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int level = 1; int bound = 1; while (n > bound) { level += 1; bound += level; } int gap = bound - n; int k = 1; for (int i = 0; i < gap; i++) { k++; level--; } if (((level+gap)%2) == 1) { System.out.println(k + "/" + level); } else { System.out.println..

import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int level = 1; int bound = 1; while (n > bound) { bound += 6 * level; level += 1; } System.out.println(level); } }

import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int a = sc.nextInt(); int b = sc.nextInt(); int c = sc.nextInt(); int n; if ((c - b) 틀린 이유: 나눗셈을 할 땐 항상 0을 조심하자

import java.util.Scanner; public class Main { static boolean checker(String str) { char[] strArr = new char[str.length()]; for (int i = 0; i < strArr.length; i++) { strArr[i] = str.charAt(i); } int[] alphaArr = new int[26]; alphaArr[strArr[0]-97] += 1; for (int j = 1; j < strArr.length; j++) { if (strArr[j] != strArr[j-1]) { alphaArr[strArr[j]-97] +=1; } } int s = 1; for (int i : alphaArr) { if ..

import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String word = sc.next(); if (word.contains("c=")) { word = word.replace("c=", "a"); } if (word.contains("c-")) { word = word.replace("c-", "a"); } if (word.contains("dz=")) { word = word.replace("dz=", "a"); } if (word.contains("d-")) { word = word.replace("d-", "a"); } if ..

import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String word = sc.next(); String[] wordArr = word.split(""); int sum = 0; for (String s : wordArr) { switch (s) { case "A": case "B": case "C": sum += 3; break; case "D": case "E": case "F": sum += 4; break; case "G": case "H": case "I": sum += 5; break; case "J": case "K": ..

import java.util.*; public class Main{ static int invert(String n) { char[] arr = new char[n.length()]; for (int i = 0; i < n.length(); i++) { arr[i] = n.charAt(i); } char temp = arr[0]; arr[0] = arr[2]; arr[2] = temp; return Integer.parseInt(new String(arr)); } public static void main(String[] args) { Scanner sc = new Scanner(System.in); String a = sc.next(); String b = sc.next(); int n = inver..

import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String str = sc.nextLine().strip(); if (str.equals("")) { System.out.println(0); } else { String[] strArr = str.split(" "); System.out.println(strArr.length); } } } 틀린이유: 입력이 공백일 경우 strArr = []으로 배열의 크기가 1인 문자열 배열인 것을 고려안함

import java.util.Arrays; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String str = sc.next(); int[] alphaArr = new int[26]; char[] arr = new char[str.length()]; for (int i = 0; i < str.length(); i++) { if ((int) str.charAt(i) < 91) { arr[i] = (char) (str.charAt(i) + 32); } else { arr[i] = str.charAt(i); } } for (int i..