AtCoder_Handle == Codeforces_Handle
current rating
max rating
Spoiler
./pick/codeforces/download.sh
#!/bin/sh
curl -o users.json "https://codeforces.net/api/user.ratedList?activeOnly=false"
./pick/atcoder/download.sh
#!/bin/sh
url='https://atcoder.jp/ranking/all?page='
filename='ranking'
fileext='.html'
downloader='curl -o'
echo $$$downloader $$${filename}1$fileext "${url}1"
$$$downloader $$${filename}1$fileext "${url}1"
num=`grep -P -o 'page=\d+' ranking1.html | grep -P -o '\d+' | sort -n | tail -n 1`
for ((i=2;i<=$num;i++)); do
echo $downloader $filename$i$fileext "$url$i"
sleep 10s
$downloader $filename$i$fileext "$url$i"
done
./pick/atcoder/main.go
package main
import (
"bufio"
"encoding/json"
"encoding/xml"
"fmt"
"io"
"os"
"path/filepath"
"strconv"
"strings"
)
type User struct {
OverallRank int `json:"overallrank"`
Rank int `json:"Rank"`
Country string `json:"country"`
Handle string `json:"handle"`
Organization string `json:"organization"`
Birth int `json:"birth"`
Rating int `json:"rating"`
Highest int `json:"highest"`
Matches int `json:"matches"`
Wins int `json:"wins"`
}
func (u *User) String() string {
return fmt.Sprintf("%#v", *u)
}
func main() {
users := []*User{}
files, err := filepath.Glob("ranking*.html")
if err != nil {
panic(err)
}
for num := range files {
file, err := os.Open(files[num])
if err != nil {
panic(err)
}
defer file.Close()
red, wri := io.Pipe()
go func() {
defer wri.Close()
bufRed := bufio.NewReader(file)
bufWri := bufio.NewWriter(wri)
for {
ch, _, err := bufRed.ReadRune()
if err != nil {
bufWri.Flush()
wri.CloseWithError(err)
return
}
if ch == 0x10 {
ch = '+'
}
if _, err = bufWri.WriteRune(ch); err != nil {
wri.CloseWithError(err)
return
}
}
}()
dec := xml.NewDecoder(bufio.NewReader(red))
dec.Strict = false
dec.AutoClose = xml.HTMLAutoClose
dec.Entity = xml.HTMLEntity
for {
if se, err := skipToSE(dec, "table"); err != nil {
panic(err)
} else if len(se.(xml.StartElement).Attr) == 0 {
continue
}
if _, err := skipToSE(dec, "tbody"); err != nil {
panic(err)
}
break
}
for {
if token, err := skipNoElm(dec); err != nil {
panic(err)
} else if ee, ok := token.(xml.EndElement); ok && ee.Name.Local == "tbody" {
break
} else if se, ok := token.(xml.StartElement); !ok || se.Name.Local != "tr" {
continue
}
user := &User{}
for i := 0; i < 7; i++ {
if _, err := skipToSE(dec, "td"); err != nil {
println(fmt.Sprintf("num: %d", num))
panic(err)
}
switch i {
case 0:
if ovR, err := getCharData(dec, "span"); err != nil {
println(fmt.Sprintf("num: %d", num))
panic(err)
} else {
ovR := strings.Trim(ovR, "()")
if overallRank, err := strconv.Atoi(ovR); err == nil {
user.OverallRank = overallRank
}
}
if r, err := getCharData(dec, "td"); err != nil {
println(fmt.Sprintf("num: %d", num))
panic(err)
} else {
if rank, err := strconv.Atoi(r); err == nil {
user.Rank = rank
}
}
case 1:
if se, err := skipToSE(dec, "a"); err != nil {
println(fmt.Sprintf("num: %d", num))
panic(err)
} else {
se := se.(xml.StartElement)
for _, attr := range se.Attr {
if attr.Name.Local != "href" {
continue
}
if ss := strings.Split(attr.Value, "="); len(ss) == 2 {
user.Country = ss[1]
}
break
}
}
if handle, err := getCharData(dec, "span"); err != nil {
println(fmt.Sprintf("num: %d", num))
panic(err)
} else {
user.Handle = handle
}
if org, err := getCharData(dec, "td"); err != nil {
println(fmt.Sprintf("num: %d", num))
panic(err)
} else {
user.Organization = org
}
case 2:
if year, err := getCharData(dec, "td"); err != nil {
println(fmt.Sprintf("num: %d", num))
panic(err)
} else {
if year, err := strconv.Atoi(year); err == nil {
user.Birth = year
}
}
case 3:
if rate, err := getCharData(dec, "td"); err != nil {
println(fmt.Sprintf("num: %d", num))
panic(err)
} else {
if rate, err := strconv.Atoi(rate); err == nil {
user.Rating = rate
}
}
case 4:
if maxrate, err := getCharData(dec, "td"); err != nil {
println(fmt.Sprintf("num: %d", num))
panic(err)
} else {
if maxrate, err := strconv.Atoi(maxrate); err == nil {
user.Highest = maxrate
}
}
case 5:
if comp, err := getCharData(dec, "td"); err != nil {
println(fmt.Sprintf("num: %d", num))
panic(err)
} else {
if comp, err := strconv.Atoi(comp); err == nil {
user.Matches = comp
}
}
case 6:
if wins, err := getCharData(dec, "td"); err != nil {
println(fmt.Sprintf("num: %d", num))
panic(err)
} else {
if wins, err := strconv.Atoi(wins); err == nil {
user.Wins = wins
}
}
}
}
users = append(users, user)
}
}
dst, err := os.Create("users.json")
if err != nil {
panic(err)
}
defer dst.Close()
out := bufio.NewWriter(dst)
defer out.Flush()
json.NewEncoder(out).Encode(users)
}
func skipToSE(dec *xml.Decoder, tag string) (xml.Token, error) {
for {
token, err := dec.Token()
if err != nil {
return token, err
}
if se, ok := token.(xml.StartElement); ok && se.Name.Local == tag {
return token, nil
}
}
}
func getCharData(dec *xml.Decoder, endTag string) (string, error) {
ret := ""
for {
token, err := dec.Token()
if err != nil {
println(fmt.Sprintf("%#v", token))
println(fmt.Sprintf("%#v", err))
tok2, err2 := dec.RawToken()
println(fmt.Sprintf("%#v", tok2))
println(fmt.Sprintf("%#v", err2))
return ret, err
}
switch token := token.(type) {
case xml.EndElement:
if token.Name.Local == endTag {
return strings.TrimSpace(ret), nil
}
case xml.CharData:
ret += string(token)
}
}
}
func skipNoElm(dec *xml.Decoder) (xml.Token, error) {
for {
token, err := dec.Token()
if err != nil {
return nil, err
}
switch token.(type) {
case xml.StartElement, xml.EndElement:
return token, nil
}
}
}
./pick/main.go
package main
import (
"bufio"
"encoding/csv"
"encoding/json"
_ "fmt"
"os"
"path/filepath"
"sort"
"strconv"
"strings"
"time"
)
type AtCoderUser struct {
OverallRank int `json:"overallrank"`
Rank int `json:"Rank"`
Country string `json:"country"`
Handle string `json:"handle"`
Organization string `json:"organization"`
Birth int `json:"birth"`
Rating int `json:"rating"`
Highest int `json:"highest"`
Matches int `json:"matches"`
Wins int `json:"wins"`
}
type CodeforcesUser struct {
Handle string
Email string
VkId string
OpenId string
FirstName string
LastName string
Country string
City string
Organization string
Contribution float64
Rank string
Rating float64
MaxRank string
MaxRating float64
LastOnlineTimeSeconds float64
RegistrationTimeSeconds float64
FriendOfCount float64
Avatar string
TitlePhoto string
}
type CodeforcesRatedList struct {
Status string
Result []*CodeforcesUser
}
func LoadJson(filepath string, data interface{}) error {
file, err := os.Open(filepath)
if err != nil {
return err
}
defer file.Close()
dec := json.NewDecoder(bufio.NewReader(file))
if err := dec.Decode(data); err != nil {
return err
}
return nil
}
func main() {
var atcoderUsers []*AtCoderUser
if err := LoadJson(filepath.Join("atcoder", "users.json"), &atcoderUsers); err != nil {
panic(err)
}
sort.Slice(atcoderUsers, func(i, j int) bool {
return strings.Compare(atcoderUsers[i].Handle, atcoderUsers[j].Handle) < 0
})
var ratedList CodeforcesRatedList
if err := LoadJson(filepath.Join("codeforces", "users.json"), &ratedList); err != nil {
panic(err)
}
dst, err := os.Create("coders.csv")
if err != nil {
panic(err)
}
defer dst.Close()
wri := csv.NewWriter(dst)
if err := wri.Write([]string{
"handle",
"atcoder_rating",
"atcoder_maxrating",
"atcoder_country",
"codeforces_rating",
"codeforces_maxrating",
"codeforces_country",
"codeforces_lastonline",
}); err != nil {
panic(err)
}
for _, cfUser := range ratedList.Result {
i := sort.Search(len(atcoderUsers), func(i int) bool {
return strings.Compare(atcoderUsers[i].Handle, cfUser.Handle) >= 0
})
if 0 <= i && i < len(atcoderUsers) && atcoderUsers[i].Handle == cfUser.Handle {
acUser := atcoderUsers[i]
wri.Write([]string{
cfUser.Handle,
strconv.Itoa(acUser.Rating),
strconv.Itoa(acUser.Highest),
acUser.Country,
strconv.Itoa(int(cfUser.Rating)),
strconv.Itoa(int(cfUser.MaxRating)),
cfUser.Country,
time.Unix(int64(cfUser.LastOnlineTimeSeconds), 0).UTC().String(),
})
}
}
wri.Flush()
if err := wri.Error(); err != nil {
panic(err)
}
}
./graph/main.go
package main
import (
"bufio"
"encoding/csv"
"fmt"
"image"
"image/color"
"image/png"
"os"
"strconv"
)
var acColors = []color.RGBA{
color.RGBA{0x80, 0x80, 0x80, 0xff},
color.RGBA{0x80, 0x40, 0x00, 0xff},
color.RGBA{0x00, 0x80, 0x00, 0xff},
color.RGBA{0x00, 0xC0, 0xC0, 0xff},
color.RGBA{0x00, 0x00, 0xFF, 0xff},
color.RGBA{0xC0, 0xC0, 0x00, 0xff},
color.RGBA{0xFF, 0x80, 0x00, 0xff},
color.RGBA{0xFF, 0x00, 0x00, 0xff},
color.RGBA{0xC0, 0xC0, 0xC0, 0xff},
color.RGBA{0xFF, 0xD7, 0x00, 0xff},
}
var cfColors = []color.RGBA{
color.RGBA{0x80, 0x80, 0x80, 0xff},
color.RGBA{0x00, 0x80, 0x00, 0xff},
color.RGBA{0x03, 0xA8, 0x9E, 0xff},
color.RGBA{0x00, 0x00, 0xFF, 0xff},
color.RGBA{0xAA, 0x00, 0xAA, 0xff},
color.RGBA{0xFF, 0x8C, 0x00, 0xff},
color.RGBA{0xFF, 0x00, 0x00, 0xff},
}
var cfRatingBorders = []int{
1200,
1400,
1600,
1900,
2100,
2400,
3000,
}
func Max(a, b int) int {
if a > b {
return a
}
return b
}
func Min(a, b int) int {
if a < b {
return a
}
return b
}
func main() {
file, err := os.Open("coders.csv")
if err != nil {
panic(err)
}
defer file.Close()
rows, err := csv.NewReader(bufio.NewReader(file)).ReadAll()
if err != nil {
panic(err)
}
dt := []int{-1, 0, 1, 0, -1}
for p := 0; p < 2; p++ {
cnt := make(map[int]int)
minAcRating := 9999
maxAcRating := -9999
minCfRating := 9999
maxCfRating := -9999
for _, row := range rows[1:] {
acRating, err := strconv.Atoi(row[1+p])
if err != nil {
panic(err)
}
cfRating, err := strconv.Atoi(row[4+p])
if err != nil {
panic(err)
}
minAcRating = Min(minAcRating, acRating)
maxAcRating = Max(maxAcRating, acRating)
minCfRating = Min(minCfRating, cfRating)
maxCfRating = Max(maxCfRating, cfRating)
acRating += 1000
acRating /= 5
cfRating += 1000
cfRating /= 5
key := acRating*10000 + cfRating
if c, ok := cnt[key]; ok {
cnt[key] = c + 1
} else {
cnt[key] = 1
}
}
fmt.Println("minAcRating", minAcRating)
fmt.Println("maxAcRating", maxAcRating)
fmt.Println("minCfRating", minCfRating)
fmt.Println("maxCfRating", maxCfRating)
fmt.Println("uniq", len(cnt))
max := 0
for _, c := range cnt {
if c > max {
max = c
}
}
fmt.Println("maxCount", max)
img := image.NewRGBA(image.Rect(0, 0, 1000, 1000))
for k, c := range cnt {
acRating := k / 10000
cfRating := k % 10000
r := uint8(255 * c / max)
img.Set(cfRating, 999-acRating, color.RGBA{r, 0, 0, 0xff})
r = r * 95 / 100
for i := 0; i < 4; i++ {
ac := acRating + dt[i]
cf := cfRating + dt[i+1]
if ac < 0 || ac >= 1000 || cf < 0 || cf >= 1000 {
continue
}
if _, _, _, a := img.At(cf, 999-ac).RGBA(); a == 0 {
img.Set(cf, 999-ac, color.RGBA{r, 0, 0, 0xff})
}
}
}
gray := color.RGBA{60, 60, 60, 0xff}
for i := 0; i < 1000; i++ {
if _, _, _, a := img.At(200, i).RGBA(); a == 0 {
img.Set(200, i, gray)
}
if _, _, _, a := img.At(i, 999-200).RGBA(); a == 0 {
img.Set(i, 999-200, gray)
}
}
lightgray1 := color.RGBA{190, 190, 190, 0xff}
lightgray2 := color.RGBA{235, 235, 235, 0xff}
for i := 0; i < 800; i++ {
for j := 0; j < 800; j += 20 {
if _, _, _, a := img.At(200+i, 999-200-j).RGBA(); a == 0 {
if j%80 == 0 {
img.Set(200+i, 999-200-j, lightgray1)
} else {
img.Set(200+i, 999-200-j, lightgray2)
}
}
if _, _, _, a := img.At(200+j, 999-200-i).RGBA(); a == 0 {
col := lightgray2
for _, r := range cfRatingBorders {
if r/5 == j {
col = lightgray1
break
}
}
img.Set(200+j, 999-200-i, col)
}
}
}
for i, col := range acColors {
for x := 190; x < 200; x++ {
for dy := 0; dy < 80; dy++ {
y := i*80 + dy
if _, _, _, a := img.At(x, 999-200-y).RGBA(); a == 0 {
img.Set(x, 999-200-y, col)
}
}
}
}
for y := 190; y < 200; y++ {
for x := 0; x < 800; x++ {
if _, _, _, a := img.At(200+x, 999-y).RGBA(); a != 0 {
continue
}
col := color.RGBA{0, 0, 0, 0xff}
for i, r := range cfRatingBorders {
if x < r/5 {
col = cfColors[i]
break
}
}
img.Set(200+x, 999-y, col)
}
}
graph, err := os.Create(fmt.Sprintf("graph%d.png", p))
if err != nil {
panic(err)
}
defer graph.Close()
err = png.Encode(graph, img)
if err != nil {
panic(err)
}
}
}