- Day 1 - Used Ruby enum each_cons method.
- Day 2 - Used Ruby eval and instance_eval methods.
- Day 3 - Used exor OPERATOR and reject, select, find methods.
- Day 4 - Used transpose, flatten, all?, any?, inject and other Enum methods.
- Day 5 - Used transpose, flatten and upto.
- Day 6 - Used inject and times.
- Day 7 - Used inject and Float::INFINITY.
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View Code? Open in Web Editor NEWAdvent of code 2021 using Ruby