画一下, BST in order traversal. 用stack记录最小值, 放在top. O(h) space. 每次消耗TreeNode, 都看看rightNode(其实就是下一个最小的candidate), 并且一条龙stack叠上rightNode所有的left子孙. stack里面top，也就是tree最左下角的node先考虑,取名rst. 其实这个rst拿出来以后 ...

A decision tree regression system incorporates a set of if-then rules to predict a single numeric value. Decision tree regression is rarely used by itself because it overfits the training data, and so ...

After a challenging 12 years trying to use AI to create new medicines, cofounder Chris Gibson stepped down as CEO last week. Can R&D chief and new CEO Najat Khan turn it around? In 2014, Recursion ...

After 12 years leading Utah-based techbio company Recursion, CEO Chris Gibson is stepping down. Recursion’s R&D head and Chief Commercial Officer Najat Khan will become CEO effective Jan. 1. Gibson co ...

In Hans Christian Andersen's folktale, The Emperor's New Clothes, when a child cries out that the emperor is naked, he isn't revealing a secret. Everyone already knows it. What changes in that instant ...

These are direct-prediction models trained from scratch on small, heavily augmented datasets—not few-shot prompting. ARC remains the canonical target; broader leaderboard context and rules (e.g., ...

RXRX has upcoming data in H2'25 from the TUPELO trial of REC-4881 in familial adenomatous polyposis. The company will also report data from the ELUCIDATE trial of REC-617 in H2'25. A previous update ...

As of March 31, Recursion Pharmaceuticals had a cash position of $509 million. Following Tuesday’s layoffs, the biotech expects its runway to last into the fourth quarter of 2027. Recursion ...

Recursion said today it is eliminating approximately 20% of its workforce—about 160 jobs—in a restructuring the AI-based drug developer said reflects both its recently-pruned pipeline and the ...