2019年11月17日
Codeforces Round #600 (Div. 2)
摘要： A. Single Push You're given two arrays a[1…n]a[1…n] and b[1…n]b[1…n], both of the same length nn. In order to perform a push operation, you have to ch 阅读全文
posted @ 2019-11-17 08:10 __MEET 阅读(470) 评论(0) 推荐(0) 编辑