---
# System prepended metadata

title: 'https://codeforces.com/contest'
tags: [CP]

---

# Codeforces Round 896 (Div. 2) A. Make It Zero
問題
https://codeforces.com/contest/1869/problem/A
提出
https://codeforces.com/contest/1869/submission/222911392
考察![](https://hackmd.io/_uploads/B1Vzri2R3.png)
