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전체 글336

[백준] 17219번 비밀번호 찾기 #Java import java.io.*; import java.util.*; public class Main { static HashMap hashMap; static int n,m,h; public static void main(String[] args) throws Exception { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(br.readLine()," "); n = Integer.parseInt(st.nextToken()); m = Integer.parseInt(st.nextToken()); hashMap = new HashMap(); for .. 2022. 6. 19.
[백준] 24479번 알고리즘 수업 - 깊이 우선 탐색 1 #Java import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.Collections; import java.util.StringTokenizer; public class Main { static int N,M,R,idx; static ArrayList[] edges; static int [] answer; static boolean [] visited; public static void main(String[] args) throws IOException { BufferedReader br = new BufferedRead.. 2022. 6. 17.
[백준] 1676번 팩토리얼 0의 개수 #Java 소인수분해, 누적합 import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; 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 answer = 0; while (n >= 5) { answer += n / 5; n /= 5; } System.out.println(answer); } } 2022. 6. 7.
[백준] 1065번 한수 #Java import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Main { static int N; public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); N = Integer.parseInt(br.readLine()); int cnt = 0; while (N > 0){ cnt += solution(N); N--; } System.out.println(cnt); } private static int.. 2022. 5. 31.