https://paiza.jp/challenges/212/show　動くけど未完成、バイトコード使えば良いのでは？　このまま続けると階層エグくなりそう

paizaB047.py

# coding: utf-8
typeKey = input()

keyLeng = len(typeKey)

flag = 0
ans = 0
for i in range(keyLeng):
    if i == keyLeng - 1 :
        break
    
    print(typeKey[i],typeKey[i+1],ans)
    if typeKey[i] == "t":
       flag = 1
    elif typeKey[i] == "g":
        flag = 2
    elif typeKey[i] == "b":
        flag = 3
        
    if flag == 1 and typeKey[i+1] == "y":
        ans += 1
        if typeKey[i+1] == "u":
            ans += 1
        elif typeKey[i+1] == "h":
            ans += 1
        elif typeKey[i+1] == "y":
            ans +=1
        else :
            flag = 0
    if flag == 2 and typeKey[i+1] == "h":
        ans += 1
        if typeKey[i+1] == "j":
            ans += 1
        elif typeKey[i+1] =="y":
            ans += 1
        elif typeKey[i+1] =="n":
            ans += 1
        elif typeKey[i+1] == "h":
            ans +=1
        else :
            flag = 0
    if flag == 3 and typeKey[i+1] == "n":
        ans += 1
        if typeKey[i+1] == "h":
            ans+=1
        elif typeKey[i+1] == "m":
            ans +=1
        elif typeKey[i+1] == "n":
            ans +=1
        else :
            flag = 0
    
    if typeKey[i] == "y":
        flag = 4
    elif typeKey[i] =="h":
        flag = 5
    elif typeKey[i] == "n":
        flag = 6
        
    if flag == 1 and typeKey[i+1] == "t":
        ans += 1
        if typeKey[i+1] == "r":
            ans += 1
        elif typeKey[i+1] == "g":
            ans += 1
        elif typeKey[i+1] == "t":
            ans += 1
        else :
            flag = 0
    if flag == 2 and typeKey[i+1] == "g":
        ans += 1
        if typeKey[i+1] == "t":
            ans += 1
        elif typeKey[i+1] =="b":
            ans += 1
        elif typeKey[i+1] =="f":
            ans +=1
        elif typeKey[i+1] == "g":
            ans += 1
        else :
            flag = 0
    if flag == 3 and typeKey[i+1] == "b":
        ans += 1
        if typeKey[i+1] == "g":
            ans+=1
        elif typeKey[i+1] == "v":
            ans +=1
        elif typeKey[i+1] == "b":
            ans += 1
        else :
            flag = 0
            
    flag = 0
print(ans)