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| package main | |
| import ( | |
| "bufio" | |
| "fmt" | |
| "log" | |
| "math/rand" | |
| "os" | |
| "sort" | |
| "strconv" | |
| "time" | |
| "github.com/olekukonko/tablewriter" | |
| ) | |
| func main() { | |
| names := FetchNames() | |
| rand.Seed(time.Now().UnixNano()) | |
| const loops = 2023 | |
| frequency := make(map[string]int) | |
| for i := 0; i < loops; i++ { | |
| frequency[names[rand.Intn(len(names))]]++ | |
| } | |
| PrintResults(os.Stdout, frequency, loops) | |
| } | |
| func PrintResults(output *os.File, frequency map[string]int, loops int) { | |
| var namesAndCounts [][]string | |
| for name, count := range frequency { | |
| namesAndCounts = append(namesAndCounts, []string{name, fmt.Sprintf("%d", count)}) | |
| } | |
| sort.Slice(namesAndCounts, func(i, j int) bool { | |
| return namesAndCounts[i][1] > namesAndCounts[j][1] | |
| }) | |
| table := tablewriter.NewWriter(output) | |
| table.SetHeader([]string{"S/N", "Name", "Count", "Percentage"}) | |
| for i, nameAndCount := range namesAndCounts { | |
| count, _ := strconv.Atoi(nameAndCount[1]) | |
| percentage := float64(count) / float64(loops) * 100 | |
| line := []string{fmt.Sprintf("%d", i+1), nameAndCount[0], nameAndCount[1], fmt.Sprintf("%.2f%%", percentage)} | |
| table.Append(line) | |
| } | |
| table.Render() | |
| } | |
| func FetchNames() []string { | |
| file, err := os.Open("names.txt") | |
| if err != nil { | |
| log.Fatalf("failed to open") | |
| } | |
| defer file.Close() | |
| scanner := bufio.NewScanner(file) | |
| scanner.Split(bufio.ScanLines) | |
| var names []string | |
| for scanner.Scan() { | |
| names = append(names, scanner.Text()) | |
| } | |
| return names | |
| } |
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