~cpp 
#include<iostream>
using namespace std;

char code[8][10];
bool test(char* a,char* b);

void main()
{
	cout<<"해독가능성을 판별할 코드들을 입력하세요?!!";
	char temp;
	int code_number=0;
	int code_byte=0;
	int same=0;
	cin.get(temp);
	
	while(temp != '\n')
	{
		if(temp!=' ')
		{
			code[code_number][code_byte]=temp;
			code_byte++;
		}
		else
		{
			code[code_number][code_byte]='\n';
			code_number++;
			code_byte=0;
		}
	cin.get(temp);
	}
	
	for(int i=0 ; i<=code_number-1 ; i++)
		for(int j=i+1 ; j<=code_number ; j++)
		{
			if(test(code[i],code[j])==true)
				same++;
		}

	if(same>0)
		cout<<"Set is not immediately decodable ";
	else
		cout<<"Set is immediately decodable ";
	cout<<endl;

}

bool test(char* a,char* b)
{
	int i=0;
	
	while(a[i]!='\n')
	{
		if(a[i]!=b[i])
			return false;
		i++;
	}
return true;
}