Easy_Training

6 problems from Easy_Training (contest 104921), difficulty -. 1/6 solutions verified against sample I/O.

6 items

Easy_Training

Special | 6 problems | 1/6 verified | Difficulty - | 7m 33s

# Problem Rating Tags Accepted Time ✓
A Rook 1m 4s
B Good Kid 1m 27s
C Word on the Paper 1m 6s ✓
D Gift Carpet 1m 22s
E Game with Integers 1m 12s
F Morning 1m 22s
Practice › Codeforces Solutions › Easy_Training ›

CF 104921F - Morning

We are working with a circular keypad labeled from 0 to 9. You start with a cursor positioned on digit 1, and your task is to type a fixed 4-digit PIN. At any moment, you can either press the current digit under the cursor, or move the cursor to an adjacent digit on the circle.
codeforces competitive-programming Jun 28, 2026
Practice › Codeforces Solutions › Easy_Training ›

CF 104921E - Game with Integers

We start with a single integer, and two players alternately modify it. On each move a player can increase or decrease the current value by exactly one. Vanya moves first. The game ends early if, immediately after Vanya makes a move, the resulting number is divisible by 3.
codeforces competitive-programming Jun 28, 2026
Practice › Codeforces Solutions › Easy_Training ›

CF 104921B - Good Kid

We are given a small collection of single-digit numbers. For each test case, we are allowed to pick exactly one of these digits and increase it by one.
codeforces competitive-programming Jun 28, 2026
Practice › Codeforces Solutions › Easy_Training ›

CF 104921D - Gift Carpet

The carpet is a small grid of lowercase letters. You read it column by column from left to right, but you are not forced to take every character. From each column you may either pick exactly one letter from that column or skip the column entirely.
codeforces competitive-programming Jun 28, 2026
Practice › Codeforces Solutions › Easy_Training ›

CF 104921C - Word on the Paper

We are given several independent 8 by 8 character grids. Each grid is mostly filled with dots, but somewhere inside it a single word is hidden. The word is written straight down in exactly one column, occupying consecutive rows without interruption.
codeforces competitive-programming Jun 28, 2026
Practice › Codeforces Solutions › Easy_Training ›

CF 104921A - Rook

The input describes positions of a rook on a standard 8 by 8 chessboard. Each position is given in algebraic notation, where a letter from a to h identifies the column and a digit from 1 to 8 identifies the row.
codeforces competitive-programming Jun 28, 2026