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   -> Java֪ʶ¿â -> BugkuCTF-CryptoÌâÆæ¹ÖµÄÃÜÂë -> ÕýÎÄÔĶÁ

[Java֪ʶ¿â]BugkuCTF-CryptoÌâÆæ¹ÖµÄÃÜÂë

Ãè¡¡¡¡Êö: ͻȻÌìÉÏÒ»µÀÀ×µç gndk€rlqhmtkwwp}z
½âÌâ¹ý³Ì:
g n d k r l q h m t k w w p } z
103 110 100 107 114 108 113 104 109 116 107 119 119 112 125 122

f l a g
102 108 97 103

¹æÂÉ:¼õÉÙ1,2,3,4,5,¡­

f l a g
102 108 97 103

±àдCÓïÑÔ/Java/Python½Å±¾(·ÅÔÚ×îºó)
µÃµ½ASCIIÂë,ת»»ºóÌá½»³ö´í
·¢ÏÖ±»ÉÁµçÅü¿ªgndk€rlqhmtkwwp}z,€Ò²Õ¼Ò»Î»
ËùÒÔ€ÒÔºóµÄÐè¶à¼õһλ
×îºóµÃµ½flagΪflag{lei_ci_jiami}

CÓïÑÔ

#include<stdio.h>
#include<string.h>
int main()
{
	char am[]="gndkrlqhmtkwwp}z";
	int i=0,j=1;
	for(i=0;i<strlen(am);i++)
	{
		printf("%d ",am[i]);
	}
	printf("\n");
	for(i=0;i<strlen(am);i++,j++)
	{
		printf("%d ",am[i]=am[i]-j,am[i]=am[i]-j);
	}
	printf("\n");
	return 0;
}

Java

public class HelloWorld {
    public static void main(String []args) {
		String a="gndk€rlqhmtkwwp}z";
		int j = 1;
		char am=' ';
		for(int i = 0;i<a.length();i++,j++){
			am=(char)(a.charAt(i)-j);
			System.out.println(am);
		}
    }
}

Python

am = "gndk"
am1 = "rlqhmtkwwp}z"
for i in range(len(am)):
	print(chr(ord(am[i])-i-1),end='')

for i in range(len(am1)):
	print(chr(ord(am1[i])-i-6),end='')
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ÉÏһƪÎÄÕ      ÏÂһƪÎÄÕ      ²é¿´ËùÓÐÎÄÕÂ
¼Ó:2021-08-31 15:19:02  ¸ü:2021-08-31 15:21:25 
 
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360ͼÊé¹Ý ¹ºÎï Èý·á¿Æ¼¼ ÔĶÁÍø ÈÕÀú ÍòÄêÀú 2024Äê11ÈÕÀú -2024/11/23 13:17:57-

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