Codeforces Round 253 (Div. 2)

Solutions for Codeforces Round 253 (Div. 2) (contest 443). 1/1 problems verified against sample I/O. Difficulty range: 800-800.

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Codeforces Round 253 (Div. 2)

Type: Div. 2 | Problems: 1 | Verified: 1/1 | Rating range: 800-800 | Time: 1m 19s

Problem Name Rating Tags Solve Time Verified
A Anton and Letters 800 constructive-algorithms, implementation 1m 19s ✓
Practice › Codeforces Solutions › Codeforces Round 253 (Div. 2) ›

CF 443A - Anton and Letters

We are given a single formatted string that represents a set of lowercase English letters. The set is written in a very specific textual form: it starts with an opening brace, ends with a closing brace, and inside the braces letters are listed separated by comma and space.
codeforces competitive-programming constructive-algorithms implementation May 29, 2026