题目描述 There is man named Mabu who switches on-off the li […]
1541: Steps
题目描述 Consider the process of stepping from integer x to […]
1540: Self-describing Sequence
题目描述 Self-describing Sequence Solomon Golomb's sel […]
1539: The Priest Mathematician
题目描述 The ancient folklore behind the “Towers of H […]
1538: Complete Tree labeling
题目描述 A complete k-ary tree is a k-ary tree in which all […]
1537: Expressions
题目描述 Let X be the set of correctly built parenthesis ex […]
1536: Counting
题目描述 Gustavo knows how to count, but he is just now lea […]
1535: How Many Pieces of Land?
题目描述 You are given an elliptical-shaped land and you ar […]
1534: How many Fibs?
题目描述 Recall the definition of the Fibonacci numbers: f1 […]
1533: Pairsumonious Numbers
题目描述 Any set of n integers form n(n – 1)/2 sums b […]