Level: 800
- [Polycarp and Coins] https://codeforces.com/problemset/problem/1551/A
- [Odd Set] https://codeforces.com/problemset/problem/1542/A
- [Arithmetic Array] https://codeforces.com/problemset/problem/1537/A
- [Fair Playoff] https://codeforces.com/problemset/problem/1535/
- [Dislike of Threes] https://codeforces.com/problemset/problem/1560/A
- [Do Not Be Distracted!] https://codeforces.com/problemset/problem/1520/A
- [Ezzat and Two Subsequences] https://codeforces.com/problemset/problem/1557/A
- [Find The Array] https://codeforces.com/problemset/problem/1550/A
- [Stone Game] https://codeforces.com/problemset/problem/1538/A
- [Cherry] https://codeforces.com/problemset/problem/1554/A
- [Gregor and Cryptography] https://codeforces.com/problemset/problem/1549/A