Don’t Overcount
Sometimes, you may make a combinatorial argument which seems reasonable, but you find that your answer is larger than the correct answer. Here is a problem which may trip you […]
Sometimes, you may make a combinatorial argument which seems reasonable, but you find that your answer is larger than the correct answer. Here is a problem which may trip you […]
Here are the solutions for the Combinatorics Problems handout. Make sure to read all the solutions, as many of the techniques discussed frequently show up in competition. Combinatorics Solutions