Codeforces Round #803 (Div. 2) ABCD题解

A XOR Mixup
题目链接：A

题解by：wlx

---

B Rising Sand
题目链接：B
题解链接：B题题解
题解by：wushi

---

C 3SUM Closure
题目链接：C
题解链接：C题题解
题解by：lyf（题解内含A-D题题解）

---

D Fixed Point Guessing
题目链接：D
题目链接：[D题题解]( https://blog.csdn.net/qq_62553423/article/details/125524884?csdn_share_tail={"type":"blog" ,%22rType%22:%22article%22,%22rId%22:%22125524884%22,%22source%22:%22qq_62553423%22%7D&ctrtid=74IZ0)
题解by：jc

---

感谢大佬们的支持！！！