摘要：
题目描述： D. Vus the Cossack and Numbers Vus the Cossack has nn real numbers aiai. It is known that the sum of all numbers is equal to 00. He wants to cho 阅读全文
摘要：
题目描述： Nick had received an awesome array of integers a=[a1,a2,…,an] as a gift for his 5 birthday from his mother. He was already going to explore its 阅读全文
摘要：
题目描述： D. Color the Fence time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output D. Color the Fe 阅读全文
摘要：
题目描述： H. Maximal GCD time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output 题目描述： H. Maximal GCD 阅读全文