86 lines
2.2 KiB
Markdown
86 lines
2.2 KiB
Markdown
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As June approaches and summer sports rise in popularity, people are becoming more festive, and want
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to celebrate.
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You are participating the start of the Dragon Boat Festival, where you will be competing to collect
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as many coins as possible within 3 hours. As part of the competition, you have been provided the
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number of coins in each section of the lake.
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As part of your team strategy, you want to first calculate the total number of coins that can be
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collected.
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Your map is sectioned into a grid, where each digit represents the number of coins in that area.
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### Example
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- Given the following input
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```
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46327
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85390
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29543
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```
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Shows that there are a total of `5 * 3 = 15` sections within the lake.
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Adding up all of the individual digits, we see that the total number of coins within this lake
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is `70`.
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**What is the total number of coins within the lake?**
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{{ if .Part1.Completed -}}
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**Congratulations! You got Part 1 correct. Your answer was `{{ .Part1.Solution }}`.**
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## Part 2
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You recently learned there there is going to be some serious competition within the Dragon Boat
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Festival. Nevertheless, you are still determined to win. You have developed a new strategy in order
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to collect coins as efficiently as possible.
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As part of this secret strategy, which produces the dragon number, you will need to calculate two
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values:
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1. The maximum sum of coins in any given column
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2. The maximum sum of coins in any given row
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Your final answer is the product of these two sums.
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### Example
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- Given the following input
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```
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46327
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85390
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29543
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```
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In this example, there are 3 rows, and 5 columns.
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1. Sum of row 1: `4+6+3+2+7 = 22`
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2. Sum of row 2: `8+5+3+9+0 = 25`
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3. Sum of row 2: `2+9+5+4+3 = 23`
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**The maximum sum from rows 1-3 is 25**
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1. Sum of column 1: `4+8+2 = 14`
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2. Sum of column 2: `6+5+9 = 20`
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3. Sum of column 3: `3+3+5 = 11`
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4. Sum of column 4: `2+9+4 = 15`
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5. Sum of column 5: `7+0+3 = 10`
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**The maximum sum from columns 1-5 is 20**
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Using this information, the maximums of the rows and columns is `25` ad `20`.
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The answer, and the dragon number, is `25*20 = 500`.
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**What is the dragon number for your lake?**
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{{ if .Part2.Completed -}}
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**Congratulations! You have completed both parts! The answer was `{{ .Part2.Solution }}`.**
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{{- end }}
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{{- end }}
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