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Josh Creek
16 lines
1.1 KiB
Plaintext
16 lines
1.1 KiB
Plaintext
After feeling like you've been falling for a few minutes, you look at the device's tiny screen. "Error: Device must be calibrated before first use. Frequency drift detected. Cannot maintain destination lock." Below the message, the device shows a sequence of changes in frequency (your puzzle input). A value like +6 means the current frequency increases by 6; a value like -3 means the current frequency decreases by 3.
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For example, if the device displays frequency changes of +1, -2, +3, +1, then starting from a frequency of zero, the following changes would occur:
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Current frequency 0, change of +1; resulting frequency 1.
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Current frequency 1, change of -2; resulting frequency -1.
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Current frequency -1, change of +3; resulting frequency 2.
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Current frequency 2, change of +1; resulting frequency 3.
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In this example, the resulting frequency is 3.
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Here are other example situations:
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+1, +1, +1 results in 3
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+1, +1, -2 results in 0
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-1, -2, -3 results in -6
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Starting with a frequency of zero, what is the resulting frequency after all of the changes in frequency have been applied? |