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using System;
using System.Collections.Generic;

public class Solution {
    public int[] solution(int n) {
        List<int> List = new List<int>();
        for(int i=1;i<n+1;i++)
        {
            if(n%i == 0)
            {
                List.Add(i);
            }
        }
        int[] answer = List.ToArray();
        return answer;
    }
}

 

파이썬

 

def solution(n):
    answer = [i for i in range(1,n+1) if n%i == 0]
    return answer

 

자바

 

import java.util.*;

class Solution {
    public int[] solution(int n) {
        List<Integer> list = new ArrayList<>();

        for (int i = 1; i <= n / 2; i++) 
        {
            if (n % i == 0) 
            {
                list.add(i);
            }
        }

        list.add(n);

        return list.stream().mapToInt(e -> e).toArray();
    }
}

 

 

import java.util.stream.IntStream;
import java.util.Arrays;

class Solution {
    public int[] solution(int n) {
        return IntStream.rangeClosed(1, n).filter(i -> n % i == 0).toArray();
    }
}
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using System;
using System.Linq;

public class Solution {
    public int[] solution(int[] array) {
        int[] answer = new int[2] {array.Max(), Array.IndexOf(array, array.Max())};
        return answer;
    }
}

        //array.Max()는 배열 원소중 가장 큰수를 반환. Array.IndexOf는 지정한 개체를 검색하여 같은 원소가 있으면 그 인덱스 번호를 반환함

 

파이썬

 

def solution(array):
    val = max(array)
    return [val, array.index(val)]

 

자바

 

class Solution {
    public int[] solution(int[] array) {
        int[] answer = new int[2];

        for(int i=0;i<array.length;i++) 
        {
            if(array[i] > answer[0]) 
            {
                answer[0] = array[i];
                answer[1] = i;
            }
        }

        return answer;
    }
}

 

 

class Solution {
    public int[] solution(int[] array) {
        int max = 0;
        int maxIndex = -1;
        
        for (int i = 0; i < array.length; i++) 
        {
            if (max < array[i]) 
            {
                max = array[i];
                maxIndex = i;
            }
        }
        
        int[] answer = {max, maxIndex};
        return answer;
    }
}
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using System;

public class Solution {
    public int solution(int[] box, int n) {
        int answer = 0;
        answer += box[0]/n;
        answer *= box[1]/n;
        answer *= box[2]/n;
        return answer;
    }
}

 

파이썬

 

def solution(box, n):
    x, y, z = box
    return (x // n) * (y // n) * (z // n )

 

자바

 

class Solution {
    public int solution(int[] box, int n) {
        int answer = 1;

        answer *= box[0]/n;
        answer *= box[1]/n;
        answer *= box[2]/n;

        return answer;
    }
}

 

 

 

자바

 

 

class Solution {
    public int solution(int[] box, int n) {
        int answer = 1;

        answer *= box[0]/n;
        answer *= box[1]/n;
        answer *= box[2]/n;

        return answer;
    }
}

 

 

class Solution {
    public int solution(int[] box, int n) {
        int answer = 0;
        
        for(int length : box)
        {
            if(answer == 0)
            {
                answer = length / n;
            }
            else
            {
                answer *= length / n;
            }
        }
        return answer;
    }
}

 

 

class Solution {
    public int solution(int[] box, int n) {
        int answer = (box[0] / n) * (box[1] / n) * (box[2] / n);

        return answer;
    }
}
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using System;

public class Solution {
    public string solution(string rsp) {
        string answer = "";
        // 2 > 0
        // 0 > 5
        // 5 > 2
        for(int i=0;i<rsp.Length;i++)
        {
            if(rsp[i].ToString() == "2")
            {
                answer += "0";
            }
            else if(rsp[i].ToString() == "0")
            {
                answer += "5";
            }
            else
            {
                answer += "2";
            }
        }
        
        return answer;
    }
}

 

파이썬

 

////

def solution(rsp):
    rsp =rsp.replace('2','s')
    rsp =rsp.replace('5','p')
    rsp =rsp.replace('0','r')
    rsp =rsp.replace('r','5')
    rsp =rsp.replace('s','0')
    rsp =rsp.replace('p','2')
    return rsp

/////

 

def solution(rsp):
    answer = ''
    for i in list(map(int, rsp)):
        if i == 0:
            answer += str(5)
        elif i == 2:
            answer += str(0)
        else:
            answer += str(2)
    return answer

 

 

자바

 

 

class Solution {
    public String solution(String rsp) {
        char[] cRsp = rsp.toCharArray();
        StringBuilder answer = new StringBuilder();

        for(int i=0; i < cRsp.length; i++) 
        {
            switch(cRsp[i]) 
            {
                case '0' :
                    answer.append("5");
                    break;
                case '2' :
                    answer.append("0");
                    break;
                case '5' :
                    answer.append("2");
                    break;
            }
        }
        
        return answer.toString();

    }
}

 

 

class Solution {
    public String solution(String rsp) {
        String answer = "";
        String[] arr = rsp.split("");
        
        for(int i=0;i < arr.length; i++) 
        {
            if(arr[i].equals("2")) 
              answer += "0";
            else if(arr[i].equals("0")) 
              answer += "5";
            else
              answer += "2";
        }

        return answer;
    }
}
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using System;
using System.Collections.Generic;

public class Solution {
    public int[] solution(string my_string) { 
        List<int> List = new List<int>();
        
        for(int i = 0; i < my_string.Length; i++)
        {  
            if(Char.IsDigit(my_string[i]) == true)
            {
                List.Add((int)my_string[i] - 48);
            }
        }
        
        int[] answer = List.ToArray();
        Array.Sort(answer);
        return answer;
    }
}

 

///

 

using System;
using System.Collections.Generic;
using System.Linq;

public class Solution {
    public int[] solution(string my_string) { 

        int[] answer = my_string.Where(x => char.IsNumber(x)).Select(x => Convert.ToInt32(x.ToString())).OrderBy(x => x).ToArray();

        Array.Sort(answer);
        return answer;
    }
}

 

파이썬

 

def solution(my_string):
    answer = []
    for i in my_string:
        if i.isdigit():
            answer.append(int(i))
    answer.sort()
    return answer

////

 

def solution(my_string):
    return sorted([int(c) for c in my_string if c.isdigit()])

 

//////

자바

//////

import java.util.*;

class Solution {
    public int[] solution(String my_string) {
        my_string = my_string.replaceAll("[a-z]","");
        int[] answer = new int[my_string.length()];

        for(int i =0; i<my_string.length(); i++)
        {
            answer[i] = my_string.charAt(i) - '0';
        }

        Arrays.sort(answer);

        return answer;
    }
}

 

 

import java.util.*;

class Solution {
    public int[] solution(String myString) {
        return Arrays.stream(myString.replaceAll("[A-Z|a-z]", "").split("")).sorted().mapToInt(Integer::parseInt).toArray();
    }
}
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using System;

public class Solution {
    public string solution(string cipher, int code) {
        string answer = "";
        
        for(int i=0;i<cipher.Length;i++)
        {
            if(i%code == 0 && code+i-1 < cipher.Length && i != 0) //code로 나뉘어지고, cipher.Length+1보다 작은 범위 내에서 출력.
            {
                answer += cipher[code+i-1];
            }
        }
        return answer;
    }
}

 

////

 

using System;

public class Solution {
    public string solution(string cipher, int code) {
        string answer = "";
        for(int i=code-1;i<cipher.Length;i+=code)
        {
            answer+=cipher[i];
        }
        return answer;
    }
}

 

파이썬

 

def solution(cipher, code):
    answer = cipher[code-1::code]
    return answer

 

 

자바

 

 

import java.util.*;
class Solution {
    public String solution(String cipher, int code) {
        String[] arr = cipher.split("");
        StringBuilder sb = new StringBuilder();
        int x = code-1;
        
        while(x < arr.length) 
        {
            sb.append(arr[x]);
            x += code;
        }

        return sb.toString();
    }
}

 

 

class Solution {
    public String solution(String cipher, int code) {
        String answer = "";
        
        for(int i=code-1; i<cipher.length(); i+=code)
        {
            answer += cipher.substring(i, i+1);
        }
        
        return answer;
    }
}
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using System;

public class Solution {
    public string solution(string my_string) {
        string answer = "";
        for(int i = 0; i < my_string.Length; i++)
        {
            if(Char.IsLower(my_string[i]) == true) //소문자면 대문자로 바꾸기
            {
                answer += Char.ToUpper(my_string[i]);
            }
            else
            {
                answer += Char.ToLower(my_string[i]);
            }
        }
        return answer;
    }
}

 

///

 

//answer = my_string.ToUpper();
//answer2 = my_string.ToLower();
전부다 대문자 혹은 소문자로 바꾸는 방법은 알았는데 Char.ToLower, Char.ToUpper이런 거는 몰랐다.

 

using System;

public class Solution {
    public string solution(string my_string) {
        string answer = "";

        foreach (var it in my_string)
        {
            if ('a' <= it && it <= 'z')
            {
                answer += it.ToString().ToUpper();
            }
            else
            {
                answer += it.ToString().ToLower();
            }
        }

        return answer;
    }
}

  

파이썬

 

def solution(my_string):
    answer = ''

    for i in my_string:
        if i.isupper():
            answer+=i.lower()
        else:
            answer+=i.upper()
    return answer

 

 

자바

 

class Solution {
    public String solution(String my_string) {
        String answer = "";
        
        for(int i=0; i<my_string.length(); i++)
        {
            char c = my_string.charAt(i);
            
            if(Character.isUpperCase(c))
            {
                answer += String.valueOf(c).toLowerCase();
            }
            else
            {
                answer += String.valueOf(c).toUpperCase();
            }
        }
        return answer;
    }
}

 

 

class Solution {
    public String solution(String my_string) {
        String answer = "";

        for (int i = 0; i < my_string.length(); i++) 
        {
            int num = (int)my_string.charAt(i);

            if (num >= 65 && num <= 90) 
              answer += (char)(num + 32) + "";
            else 
              answer += (char)(num - 32) + "";
        }

        return answer;
    }
}
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using System;

public class Solution {
    public int solution(int n, int t) {
        
        for(int i=1;i<=t;i++)
        {
            n = 2*n;
        }
        
        return n;
    }
}

 

파이썬

////

def solution(n, t):
    answer = 2**t * n
    return answer

 

비트연산

////

 

def solution(n, t):
    return n << t

 

 

자바

 

 

class Solution {
    public int solution(int n, int t) {
        int answer = 0;

        answer = n << t;

        return answer;
    }
}

 

 

class Solution {
    public int solution(int n, int t) {
        int answer = n;
        
        for(int i=1; i<=t; i++)
        {
            answer *= 2;
        }
        return answer;
    }
}

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