day 11 improvements

README.md

@@ -37,11 +37,11 @@ Solutions for [Advent of Code](https://adventofcode.com/) in [Rust](https://www.
 | [Day 8](./src/bin/08.rs) | `106.2µs` | `-` |
 | [Day 9](./src/bin/09.rs) | `1.0ms` | `-` |
 | [Day 10](./src/bin/10.rs) | `10.1ms` | `-` |
-| [Day 11](./src/bin/11.rs) | `6.0s` | `-` |
+| [Day 11](./src/bin/11.rs) | `1.9s` | `-` |
 | [Day 12](./src/bin/12.rs) | `4.5ms` | `-` |
 | [Day 13](./src/bin/13.rs) | `3.1ms` | `-` |
 
-**Total: 6080.39ms**
+**Total: 1980.39ms**
 <!--- benchmarking table --->
 
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