[ACTF新生赛2020]SoulLike 题解

from pwn import *
flag = "actf{"
k = 0
for n in range(12):
    for i in range(33,127):
        p = process('./SoulLike')
        _flag = flag + chr(i)
        print(_flag)
        p.sendline(_flag)
        s = p.recvline().decode()
        if "on #" in s:
            r = int(s.split("on #")[1].split("\n")[0])
            if r == k+1:
                print(s)
                flag += chr(i)
                k += 1
        p.close()
print(flag)