Live2d Test Env
2019年1月4日
HihoCoder - 1867: GCD (莫比乌斯容斥)
摘要： Sample Input Sample Output You are given a {1, 2, ..., n}-permutation a[1], a[2], ..., a[n]. How many pairs of integers (i, j) satisfy 1 ≤ i ≤ j ≤ n a 阅读全文
posted @ 2019-01-04 19:22 nimphy 阅读(402) 评论(0) 推荐(0)
HihoCoder - 1781： Another Bubble Sort （冒泡排序&逆序对）
摘要： Sample Input Sample Output Prof.Q is a sophisticated professor who has insights into quadrillions of sorting algorithms, especially into bubble sort. 阅读全文
posted @ 2019-01-04 18:38 nimphy 阅读(728) 评论(0) 推荐(0)