import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Deque; import java.util.LinkedList; import java.util.StringTokenizer; public class BJ_11003 { static class Node { long ind; long val; Node(long ind, long val) { this.ind = ind; this.val = val; } } public static void main(String[] args) throws IOException { BufferedReader br = new Buffere..

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; public class BJ_12891 { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(br.readLine(), " "); int i, j; int s = Integer.parseInt(st.nextToken());..

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Arrays; import java.util.StringTokenizer; public class BJ_1253 { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int n = Integer.parseInt(br.readLine()); long[] arr = new long[n]; int i; StringTokenizer..

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Arrays; import java.util.StringTokenizer; public class BJ_1940 { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int n = Integer.parseInt(br.readLine()); int m = Integer.parseInt(br.readLine()); int res..

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class BJ_2018 { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int n = Integer.parseInt(br.readLine()); int start_pointer = 1; int end_pointer = 1; int sum = 1; int cnt = 1; while(end_pointer!=n){ if(n > sum) { ..

공통점 차이점

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; public class BJ_10986 { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(br.readLine(), " "); int i, temp; long result = 0; int n = Integer.parse..

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; public class BJ_11660 { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringBuilder sb = new StringBuilder(); StringTokenizer st = new StringTokenizer(br.readLine(), " "); int n = Int..

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; public class BJ_11659 { public static void main(String[] args) throws IOException { int i, j, t; BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st; StringBuilder sb = new StringBuilder(); st = new StringTokenizer(br.readLine(), ..

구간 합 배열 이용 시 시간 복잡도를 O(n)에서 O(1)로 개선