摘要：
Kuro is currently playing an educational game about numbers. The game focuses on the greatest common divisor (GCD), the XOR value, and the sum of two 阅读全文
摘要：
D. XOR-pyramid time limit per test 2 seconds memory limit per test 512 megabytes input standard input output standard output For an array bb of length 阅读全文
摘要：
C. Finite or not? time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given several q 阅读全文