The problem of the week will return in the Fall 22 semester. We thank everyone who participated this Spring. For the Summer, we suggest reviewing problems from past semesters and working on the additional problems posted at the bottom of the provided solutions.

• Problem 7 No solutions were submitted.

• Problem 6 Solved by Prof. Vladislav Kargin

• Problem 5 Solved by Leo Kargin (a 9-th grader from San Francisco !)

• Problem 4 No solutions were submitted.

• Problem 3 Solved by Ashton Keith.

• Problem 2 No solutions were submitted.

• Problem 1 Solution submitted by Ashton Keith.