Counts how many times an outfit tag appears.

count.go

package main

import (
	"bufio"
	"bytes"
	"container/heap"
	"fmt"
	"io"
	"os"
	"regexp"
)

type Outfit struct {
	Tag  string
	Done int
}

func (o Outfit) String() string {
	var buf bytes.Buffer

	switch o.Tag {
	case "":
		buf.WriteString("Unaffiliated ")
	default:
		buf.WriteByte('[')
		buf.WriteString(o.Tag)
		buf.WriteString("] ")
	}

	buf.WriteByte('(')
	fmt.Fprintf(&buf, "%v", o.Done)
	buf.WriteByte(')')

	return buf.String()
}

type OutfitHeap []Outfit

func (oh OutfitHeap) Len() int {
	return len(oh)
}

func (oh OutfitHeap) Swap(i1, i2 int) {
	oh[i1], oh[i2] = oh[i2], oh[i1]
}

func (oh OutfitHeap) Less(i1, i2 int) bool {
	return oh[i1].Done > oh[i2].Done
}

func (oh *OutfitHeap) Push(v interface{}) {
	*oh = append(*oh, v.(Outfit))
}

func (oh *OutfitHeap) Pop() (r interface{}) {
	r = (*oh)[len(*oh)-1]
	*oh = (*oh)[:len(*oh)-1]

	return
}

func main() {
	outfits := make(map[string]int)
	re := regexp.MustCompile(`\[([a-zA-Z0-9]+)\]`)

	r := bufio.NewReader(os.Stdin)
	for {
		line, err := r.ReadString('\n')
		if err != nil {
			if err == io.EOF {
				break
			}

			panic(err)
		}

		matches := re.FindStringSubmatch(line)
		if len(matches) < 2 {
			outfits[""]++
			continue
		}

		outfits[matches[1]]++
	}

	oh := make(OutfitHeap, 0, len(outfits))
	for o, r := range outfits {
		heap.Push(&oh, Outfit{
			Tag:  o,
			Done: r,
		})
	}

	fmt.Printf("Total: %v outfits (and unaffiliated)\n", oh.Len())

	prev := 0
	for i := 1; oh.Len() > 0; i++ {
		o := heap.Pop(&oh).(Outfit)
		if o.Done == prev {
			i--
		}

		fmt.Printf("#%v: %v\n", i, o)

		prev = o.Done
	}
}

reaver-2015-04-22.txt

Total: 130 outfits (and unaffiliated)
#1: Unaffiliated (36)
#2: [LON3] (11)
#2: [0Hhh] (11)
#3: [MCY] (10)
#4: [SHOK] (9)
#5: [TIW] (8)
#5: [ABTF] (8)
#5: [QRY] (8)
#6: [xPWR] (6)
#6: [KAIN] (6)
#7: [WASP] (5)
#7: [OO] (5)
#7: [BAX] (5)
#7: [MAIR] (5)
#7: [TD42] (5)
#7: [BLHR] (5)
#7: [PREY] (5)
#7: [252V] (5)
#7: [PONO] (5)
#8: [JEST] (4)
#8: [RX8l] (4)
#8: [CNOH] (4)
#8: [HYUN] (4)
#8: [ORBS] (4)
#8: [F1S7] (4)
#9: [MACS] (3)
#9: [RSNC] (3)
#9: [FHM] (3)
#9: [I3FS] (3)
#9: [SWAG] (3)
#9: [11C] (3)
#9: [R3K] (3)
#10: [RX81] (2)
#10: [XVK] (2)
#10: [WTAC] (2)
#10: [B4ND] (2)
#10: [Lacy] (2)
#10: [UKIP] (2)
#10: [FFS] (2)
#10: [IB] (2)
#10: [AE] (2)
#10: [SG] (2)
#10: [C15O] (2)
#10: [666] (2)
#10: [PXEL] (2)
#10: [JNJ] (2)
#10: [NRI] (2)
#10: [1RPC] (2)
#10: [S4LT] (2)
#10: [REBR] (2)
#10: [X] (2)
#10: [RCN6] (2)
#11: [ANGC] (1)
#11: [rU5H] (1)
#11: [3KDC] (1)
#11: [3DC3] (1)
#11: [GUT] (1)
#11: [UhOh] (1)
#11: [GBX] (1)
#11: [RAP1] (1)
#11: [JEWS] (1)
#11: [iHoP] (1)
#11: [SAvg] (1)
#11: [RATL] (1)
#11: [DIVI] (1)
#11: [GMYT] (1)
#11: [COBR] (1)
#11: [7FC] (1)
#11: [qp] (1)
#11: [RE4] (1)
#11: [AXTM] (1)
#11: [BL] (1)
#11: [Mako] (1)
#11: [TG] (1)
#11: [F1W5] (1)
#11: [D117] (1)
#11: [M0M] (1)
#11: [SHT] (1)
#11: [C00K] (1)
#11: [SKWL] (1)
#11: [CTAB] (1)
#11: [ADK] (1)
#11: [SBW] (1)
#11: [NC1S] (1)
#11: [UxB] (1)
#11: [GE7R] (1)
#11: [VALM] (1)
#11: [TIP] (1)
#11: [RlP] (1)
#11: [AVIA] (1)
#11: [PSHU] (1)
#11: [PL13] (1)
#11: [ZMAJ] (1)
#11: [L0L0] (1)
#11: [DIQ] (1)
#11: [709] (1)
#11: [CLOG] (1)
#11: [CSTB] (1)
#11: [DREV] (1)
#11: [SCRM] (1)
#11: [BADN] (1)
#11: [CASH] (1)
#11: [GCOA] (1)
#11: [GGUD] (1)
#11: [MB0] (1)
#11: [ACR0] (1)
#11: [MCB] (1)
#11: [0SEF] (1)
#11: [RHoA] (1)
#11: [LYB] (1)
#11: [BRCK] (1)
#11: [TFL] (1)
#11: [NCIv] (1)
#11: [NFMS] (1)
#11: [TAS] (1)
#11: [4ACE] (1)
#11: [1TRY] (1)
#11: [XEPD] (1)
#11: [418] (1)
#11: [PotP] (1)
#11: [NEWS] (1)
#11: [KORE] (1)
#11: [BO0T] (1)
#11: [GNwW] (1)
#11: [WGB] (1)
#11: [ALAY] (1)
#11: [CNCR] (1)
#11: [T0T] (1)
#11: [Fite] (1)
#11: [PAFF] (1)