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https://github.com/onyx-and-iris/aoc2023.git
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46 lines
853 B
Go
46 lines
853 B
Go
package main
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import (
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"bufio"
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"log"
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"os"
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)
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// readlines reads lines from stdin.
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// it returns them as an array of strings
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func readlines() []string {
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lines := []string{}
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scanner := bufio.NewScanner(os.Stdin)
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for scanner.Scan() {
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lines = append(lines, scanner.Text())
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}
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if err := scanner.Err(); err != nil {
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log.Fatal(err)
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}
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return lines
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}
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// nodeInNodes returns true if node n is in nodes
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// X, Y coords and direction must match
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func nodeInNodes(n node, nodes []node) bool {
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for _, node := range nodes {
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if n.X == node.X && n.Y == node.Y && n.direction == node.direction {
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return true
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}
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}
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return false
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}
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// coordInCoords returns true if coords c is in coords
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func coordInCoords(c coords, coords []coords) bool {
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for _, coord := range coords {
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if c.X == coord.X && c.Y == coord.Y {
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return true
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}
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}
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return false
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}
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