Codeforces Round 160 (Div. 2)

Solutions for Codeforces Round 160 (Div. 2) (contest 262). 0/1 problems verified against sample I/O. Difficulty range: 800-800.

2 items

Codeforces Round 160 (Div. 2)

Type: Div. 2 | Problems: 1 | Verified: 0/1 | Rating range: 800-800 | Time: 3m 6s

Problem Name Rating Tags Solve Time Verified
A Roma and Lucky Numbers 800 implementation 3m 6s ✗
Practice › Codeforces Solutions › Codeforces Round 160 (Div. 2) ›

CF 262A - Roma and Lucky Numbers

Roma has a collection of positive integers, and he is fascinated with numbers whose decimal digits consist only of 4 and 7. These are called lucky numbers. The task is to determine, from his collection, how many numbers have at most k lucky digits.
codeforces competitive-programming implementation May 29, 2026
Practice › Codeforces Solutions › Codeforces Round 160 (Div. 2) ›

CF 262B - Roma and Changing Signs

Codeforces 262B: Roma and Changing Signs
codeforces competitive-programming greedy May 29, 2026