[DataStructure&Algorithm] 문자열 압축

section : 문자열

 

풀이 1

import java.util.Scanner;

public class Main {
public String solution(String str){
str += " ";
String s = "";
int num = 1;
for(int i=0; i<str.length()-1; i++){
if((str.charAt(i) == str.charAt(i+1))){
num++;
} else {
s += str.charAt(i);
if(num > 1){
s += num;
}
num = 1;
}
}
return s;
}

public static void main(String[] args){
Main m = new Main();
Scanner scanner = new Scanner(System.in);
String str = scanner.next();
System.out.println(m.solution(str));
}
}

 

comment : 어려웠다.