---
id: maps-sets
title: "More With Maps & Sets"
author: Unknown
prerequisites:
- Bronze - Data Structures
description: "More with iterators?"
(set iterators?)
## USACO Problems
- [CSES Bit Inversions](https://cses.fi/problemset/task/1188/)
- Silver
- [Cities & States](http://usaco.org/index.php?page=viewproblem2&cpid=667)
- [Milk Measurement](http://usaco.org/index.php?page=viewproblem2&cpid=763)
- [Convention II](http://usaco.org/index.php?page=viewproblem2&cpid=859)
- Gold
- [Snow Boots](http://www.usaco.org/index.php?page=viewproblem2&cpid=813)
- [Springboards](http://www.usaco.org/index.php?page=viewproblem2&cpid=995)
- hard?