Mar 30, 2025 • Codeforces
112A Petya and Strings
Little Petya loves presents. His mum bought him two strings of the same size for his birthday
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Apr 11, 2025 • Codeforces
Anton and Fairy Tale
Anton likes to listen to fairy tales, especially when Danik, Anton's best friend, tells them. Right now Danik tells Anton a fairy tale.
Read more →Mar 29, 2025 • Codeforces
2490. Circular Sentence
A sentence is a list of words that are separated by a single space with no leading or trailing spaces
Read more →Apr 03, 2025 • Codeforces
379A New Year Candles
Vasily the Programmer loves romance, so this year he decided to illuminate his room with candles
Read more →Apr 07, 2025 • Codeforces
118A String Task
There are n stones on the table in a row, each of them can be red
Read more →Apr 12, 2025 • Codeforces
Polycarp and Letters
Polycarp loves lowercase letters and dislikes uppercase ones. Once he got a string s consisting only of lowercase and uppercase Latin letters.
Read more →Mar 25, 2025 • Codeforces
Swap Game
Alice and Bob are playing a game on an array a of n positive integers
Read more →Mar 26, 2025 • Codeforces
1742C -Stripes
On an 8×8 grid, some horizontal rows have been painted red, and some vertical columns have been painted blue
Read more →Apr 08, 2025 • Codeforces
Soldier and Bananas
A soldier wants to buy w bananas in the shop. He has to pay k dollars for the first banana.
Read more →Apr 14, 2025 • Codeforces
Neverending competitions
There are literally dozens of snooker competitions held each year, and team Jinotega
Read more →Apr 09, 2025 • Codeforces
Petya and Strings
Little Petya loves presents. His mum bought him two strings of the same size for his birthday
Read more →Mar 30, 2025 • Codeforces
427 Prison Transfer
The prison of your city has n prisoners. As the prison can't accommodate all of them, the city mayor has decided to transfer c of the prisoners to a prison.
Read more →Apr 06, 2025 • Codeforces
266B Queue at the School
During the break the schoolchildren, boys and girls, formed a queue of n people in the canteen.
Read more →Apr 13, 2025 • Codeforces
A Serial Killer
Sherlock is currently trying to catch a serial killer who kills a person each day.
Read more →Apr 17, 2025 • Codeforces
Game With Sticks
After winning gold and silver in IOI 2014, Akshat and Malvika want to have some fun. Now they are playing a game on a grid made of n horizontal and m vertical.
Read more →Apr 16, 2025 • Codeforces
Mahmoud and a Triangle
Mahmoud has n line segments, the i-th of them has length ai. Ehab challenged him to use exactly 3 line segments to form a non-degenerate triangle.
Read more →Mar 19, 2025 • Codeforces
Problem - 239A Two Bags of Potatoes
Valera had two bags of potatoes, the first of these bags contains x (x ≥ 1) potatoes.
Read more →Mar 18, 2025 • Codeforces
Problem - 231A
One day three best friends Petya, Vasya and Tonya decided to form a team and take part in programming contests.
Read more →Apr 19, 2025 • Codeforces
Jon Snow and his Favourite Number
Jon Snow now has to fight with White Walkers. He has n rangers, each of which has his own strength.
Read more →Apr 15, 2025 • Codeforces
Timofey and cubes
Young Timofey has a birthday today! He got kit of n cubes as a birthday present from his parents
Read more →Apr 10, 2025 • Codeforces
Taymyr is calling you
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Read more →Apr 04, 2025 • Codeforces
27A Next Test
«Polygon» is a system which allows to create programming tasks in a simple and professional way.
Read more →Apr 18, 2025 • Codeforces
Timofey and cubes
Young Timofey has a birthday today! He got kit of n cubes as a birthday present from his parents.
Read more →Mar 17, 2025 • Codeforces
Problem - 158B Taxi
After the lessons n groups of schoolchildren went outside and decided to visit Polycarpus to celebrate his birthday. We know that the i-th group consists
Read more →Apr 02, 2025 • Codeforces
478A Initial Bet
There are five people playing a game called "Generosity
Read more →Apr 01, 2025 • Codeforces
266A Stones on the Table
There are n stones on the table in a row, each of them can be red, green or blue
Read more →Apr 05, 2025 • Codeforces
4C Registration system
A new e-mail service "Berlandesk" is going to be opened in Berland in the near future
Read more →Mar 29, 2025 • Codeforces
1734 Select Three Sticks
You are given n sticks with positive integral length a1,a2
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