TOP3美本历史系导师专访：高中生能从历史科研中收获什么？
翰林有方的导师专访系列一直深受大家的喜爱，每一篇都是满满干货，这次我们邀请到了美国TOP3大学的历史系女导师！ 从小萌生的兴趣，使她与历史结下了不解之缘，一直不断地探索亚洲中古史。本科从国内TOP2大学的历...
USACO 2022 US Open Contest, Platinum Problem 3. Up Down Subsequence
USACO 2022 US Open Contest, Platinum Problem 3. Up Down Subsequence Farmer John's NN cows (2≤N≤3⋅1052≤N≤3⋅105), conveniently numbered 1…N1…N as usual, have ordered themselves according to a permuta...
USACO 2022 US Open Contest, Platinum Problem 2. Hoof and Brain
USACO 2022 US Open Contest, Platinum Problem 2. Hoof and Brain Given a directed graph with NN vertices and MM edges (2≤N≤1052≤N≤105, 1≤M≤2⋅1051≤M≤2⋅105), Farmer John's cows like to play the followi...
USACO 2022 US Open Contest, Platinum Problem 1. 262144 Revisited
USACO 2022 US Open Contest, Platinum Problem 1. 262144 Revisited Bessie likes downloading games to play on her cell phone, even though she does find the small touch screen rather cumbersome to use ...
USACO 2022 February Contest, Bronze Problem 3. Blocks
USACO 2022 February Contest, Bronze Problem 3. Blocks In an effort to improve her vocabulary, Bessie the cow has obtained a set of four wooden blocks, each one a cube with a letter of the alphabet ...
USACO 2022 February Contest, Bronze Problem 2. Photoshoot 2
USACO 2022 February Contest, Bronze Problem 2. Photoshoot 2 In what seems to be a familiar occurrence, Farmer John is lining up his NN cows (1≤N≤1051≤N≤105), conveniently numbered 1…N1…N, for a pho...
USACO 2022 February Contest, Bronze Problem 1. Sleeping in Class
USACO 2022 February Contest, Bronze Problem 1. Sleeping in Class Bessie the cow was excited to recently return to in-person learning! Unfortunately, her instructor, Farmer John, is a very boring l...
USACO 2022 February Contest, Silver Problem 3. Email Filing
USACO 2022 February Contest, Silver Problem 3. Email Filing Farmer John has fallen behind on organizing his inbox. The way his screen is organized, there is a vertical list of folders on the left s...
钻石挑战赛创业大赛报名即将截止！
钻石挑战赛创业大赛报名即将截止！抓紧时间报名！ The Diamond Challenge 钻石挑战赛 于 2012 年创立，致力于培养下一代的企业家精神，将创业的职业发展道路呈现给高中生，为他们提供了一个了解创业过程的机会，...
