47 lines
831 B
Go
47 lines
831 B
Go
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package main
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import (
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"bufio"
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"fmt"
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"os"
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"strconv"
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)
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func main() {
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fmt.Println(countGreater(returnContent("../input")))
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}
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func countGreater(input *[]int) (count int) {
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//Find how many elements have increased from previous
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for i := 3; i < len(*input); i++ {
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sum1 := (*input)[i-1] + (*input)[i-2] + (*input)[i-3]
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sum2 := (*input)[i-1] + (*input)[i-2] + (*input)[i]
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if sum2 > sum1 {
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count++
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}
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}
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return
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}
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func returnContent(path string) *[]int {
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//read file and return it as an array of integers
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file, err := os.Open(path)
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var content []int
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if err != nil {
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fmt.Println("Unlucky, the file didn't open")
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return &content
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}
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defer file.Close()
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scanner := bufio.NewScanner(file)
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for scanner.Scan() {
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value, _ := strconv.Atoi(scanner.Text())
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content = append(content, value)
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}
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return &content
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}
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