摘要:
Vladik had started reading a complicated book about algorithms containing n pages. To improve understanding of what is written, his friends advised hi 阅读全文
摘要:
This is an interactive problem. In the output section below you will see the information about flushing the output. On Sunday Leha the hacker took Nur 阅读全文
摘要:
Summer holidays! Someone is going on trips, someone is visiting grandparents, but someone is trying to get a part-time job. This summer Noora decided 阅读全文