package input

import (
	"bufio"
	"log"
	"os"
)

func ReadLines(filename string) []string {
	file, err := os.Open(filename)
	if err != nil {
		log.Fatalf("failed to open file: %v", err)
	}
	defer file.Close()

	lines := make([]string, 0)
	scanner := bufio.NewScanner(file)
	for scanner.Scan() {
		lines = append(lines, scanner.Text())
	}
	if err := scanner.Err(); err != nil {
		log.Fatalf("error reading file: %v", err)
	}
	return lines
}