The Twenty-first Annual Northern Michigan University Invitational Programming Contest was be held from 12:00 to 5:00 P.M. EDT on Saturday 28 March 2026 on the campus of Northern Michigan University (Marquette Co, MI).

The contest was organized by the NMU student chapter of the ACM and was attended by 37 students on 14 teams representing the following 4 schools.

Lake Superior State University, Chippewa Co, MI
Michigan Technological University, Houghton Co, MI
Northern Michigan University, Marquette Co, MI
University of Minnesota - Duluth, St. Louis Co, MN

The contest consisted of 6 problems to be solved over a 5 hour period.

Here is the list of rules.

Below is the list of problems, test input files, correct output files, and sample solutions. There were many ways to solve the problems, of course. These solutions were written in Java, and are included along with executable Jar files.

Problem 1
Problem 1 Input File
Problem 1 Output File
Problem 1 Printable Solution
Problem 1 Compilable Solution
Problem 1 Executable

Problem 2
Problem 2 Input File
Problem 2 Output File
Problem 2 Printable Solution
Problem 2 Compilable Solution
Problem 2 Executable

Problem 3
Problem 3 Input File
Problem 3 Output File
Problem 3 Printable Solution
Problem 3 Compilable Solution
Problem 3 Executable

Problem 4
Problem 4 Input File
Problem 4 Output File
Problem 4 Printable Solution
Problem 4 Compilable Solution
Problem 4 Executable

Problem 5
Problem 5 Input File
Problem 5 Output File
Problem 5 Printable Solution
Problem 5 Compilable Solution
Problem 5 Executable

Problem 6
Problem 6 Input File
Problem 6 Output File
Problem 6 Printable Solution
Problem 6 Compilable Solution
Problem 6 Executable

First place went to Michigan Technological University BENDER.
Second place went to Michigan Technological University QT 1.
Third place went to Lake Superior State University SOO SUPERIOR SEMAPHORES.

The first place school was Michigan Technological University.
The second place school was Lake Superior State University.
The third place school was Northern Michigan University.

Here are the complete results.

Here is the laptop tutorial.