첫풀이import 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)); StringBuffer sb = new StringBuffer(); int n = Integer.parseInt(br.readLine()); int answer=0; for(int i=0;in) brea..

구간 합 + 나머지 합 유형의 문제다. import java.io.IOException;import java.io.BufferedReader;import java.io.InputStreamReader;import java.util.StringTokenizer;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()); StringBuffer sb = n..

문제풀이 import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.*;import static java.lang.Math.sqrt;class MeetingComparator implements Comparator { @Override public int compare(int[] a, int[] b) { if (a[1] == b[1]) { return Integer.compare(a[0], b[0]); } return Integer.compare(a[1], b[1]); }}public class Mai..

백준 14196번 greedy 알고리즘의 대표적인 문제다.import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.*;public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int money = Integer.parseInt(br.readLine()); int money5 = money/5; if(((..

문제내 풀이import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.*;public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String str = br.readLine(); String[] mSplit = str.split("-"); int length = mSplit.length; i..

문제첫 번째 풀이: ArrayList를 이용한 좌표 압축처음에는 ArrayList를 이용하여 좌표 압축을 시도했다import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;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()) ; String..

풀이import 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 { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int rnum = Integer.parseInt(br.readLine()) ; // Intger.parseInt 를 통해 int 변환 StringTokenizer st ..