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Author: YunZh1Jun

Challenges/basic/CCCC/CCCCC.c

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+#include <stdio.h>
+#include <string.h>
+
+unsigned char flag[]={146,144,154,156,139,153,132,207,151,160,134,207,138,160,156,158,145,160,141,138,145,160,158,160,188,160,143,141,207,152,141,158,146,222,130,0};
+
+int main()
+{   
+    int i;
+
+    for(i = 0; i < strlen(flag); i++)
+        printf("%c", flag[i] ^ 0xff);
+
+    return 0;
+}
+

Challenges/basic/CCCC/flag.txt

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+moectf{0h_y0u_can_run_a_C_pr0gram!}

Challenges/basic/CCCC/题目描述.md

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+C语言是学习计算机基础中的基础，也是计算机第一学期的必修课。本题你需要配置一个能够编译运行C语言程序的环境，并且运行题目给出的代码来获取flag。
+by the way：如果你看不懂这段代码，仅仅只是运行得到了flag，后面的题做起来会有一些困难噢

Challenges/basic/Python/Python.py

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+def rol(x):
+    return ((x >> 3) | (x << 5)) & 0xff
+
+enc = [233, 184, 152, 112, 248, 104, 137, 129, 168, 41, 136, 96, 82, 153, 217, 2, 217, 114, 28, 184]
+key = 'Python'
+flag = ''
+
+for i in range(len(enc)):
+    enc[i] = rol(enc[i])
+    enc[i] -= i
+    enc[i] ^= ord(key[i % len(key)])
+
+for i in enc:
+    flag += chr(i)
+
+print(flag)

Challenges/basic/Python/flag.txt

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+moectf{Python_YYDS!}

Challenges/basic/Python/题目描述.md

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+Python是CTF中最常用的编程语言，不管是学习哪个方向都离不开Python。本题你需要配置一个能够编译运行Python程序的环境，并且运行题目给出的代码来获取flag。
+by the way：希望你是在看懂这段代码的基础上提交flag的:)

Challenges/basic/run_me/flag.txt

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+moectf{run_me_to_get_the_flag}

Challenges/basic/run_me/run_me.c

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+#include <stdio.h>
+#include <string.h>
+//moectf{run_me_to_get_the_flag}
+unsigned char flag[]={146,144,154,156,139,153,132,141,138,145,160,146,154,160,139,144,160,152,154,139,160,139,151,154,160,153,147,158,152,130,0};
+
+int main()
+{   
+    int i;
+
+    for(i = 0; i < strlen(flag); i++)
+        printf("%c", flag[i]^0xff);
+
+    return 0;
+}
+

Challenges/basic/run_me/run_me.exe

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+下载文件，双击运行得flag~
+但是我的程序好像会闪退欸，能不能想个办法保留一下它的输出？比如用CMD来运行它试试？
+如果你不知道什么是CMD，可以尝试使用搜索引擎来学习，加油吧(> <)

Challenges/basic/run_me/题目描述.md

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+moectf{run_m3_t0_g3t_th3_f1ag}

Challenges/basic/run_me2/flag.txt

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+#include <stdio.h>
+#include <string.h>
+//moectf{run_m3_t0_g3t_th3_f1ag}
+unsigned char flag[]={146,144,154,156,139,153,132,141,138,145,160,146,204,160,139,207,160,152,204,139,160,139,151,204,160,153,206,158,152,130,0};
+
+int main()
+{   
+    int i;
+
+    for(i = 0; i < strlen(flag); i++)
+        printf("%c", flag[i]^0xff);
+
+    return 0;
+}
+

Challenges/basic/run_me2/run_me2

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+下载文件，运行得flag~
+诶诶出了点小问题，好像不能运行？！因为这个程序是Linux操作系统下的可执行文件，不再是Windows了。
+请尝试配置一个Linux环境（虚拟机或者WSL）来运行它。