麦芽雪冷萃

Problem Description： Recently Vasya decided to improve his pistol shooting skills. Today his coach offered him the following exercise. He placed n can […]

Problem Description： You are messaging in one of the popular social networks via your smartphone. Your smartphone can show at most k most recent conve […]

Problem Description： When Serezha was three years old, he was given a set of cards with letters for his birthday. They were arranged into words in the […]

Problem Description： Mike and Ann are sitting in the classroom. The lesson is boring, so they decided to play an interesting game. Fortunately, all th […]

Problem Description： Ania has a large integer S. Its decimal representation has length n and doesn’t contain any leading zeroes. Ania is allowed […]

Problem Description： Dawid has four bags of candies. The i-th of them contains  candies. Also, Dawid has two friends. He wants to give each bag to one […]

Problem Description： Alan decided to get in shape for the summer, so he created a precise workout plan to follow. His plan is to go to a different gym […]