Problem p02747 (python)

Fixed submission:
hitachi = input()
#type(hitachi)
flag = 0
if(len(hitachi) == 1):
    hitachi += " "
elif(len(hitachi) >= 11):
    hitachi = " "
elif(len(hitachi) % 2 ==1):
    hitachi += " "
for x in range(len(hitachi)):
    if(hitachi[x] == " "):
        break
    if(x %2 == 0):
        if(hitachi[x] + hitachi[x+1] == "hi"):
            #print(hitachi[x] + hitachi[x+1])
            flag += 1
        else:
            #print(hitachi[x] + hitachi[x+1])
            print("No")
            break
if(not len(hitachi) == 0):
    if(flag == len(hitachi)//2):
        print("Yes")

Buggy submission (verdict: Runtime Error):
hitachi = input()
#type(hitachi)
flag = 0
if(len(hitachi) == 1):
    hitachi += " "
elif(len(hitachi) >= 11):
    hitachi = " "
for x in range(len(hitachi)):
    if(hitachi[x] == " "):
        break
    if(x %2 == 0):
        if(hitachi[x] + hitachi[x+1] == "hi"):
            #print(hitachi[x] + hitachi[x+1])
            flag += 1
        else:
            #print(hitachi[x] + hitachi[x+1])
            print("No")
            break
if(not len(hitachi) == 0):
    if(flag == len(hitachi)//2):
        print("Yes")

Buggy submission (verdict: Runtime Error):
hitachi = input()
#type(hitachi)
flag = 0
if(len(hitachi) == 1):
    hitachi += " "
for x in range(len(hitachi)):
    if(hitachi[x] == " "):
        break
    if(x %2 == 0):
        if(hitachi[x] + hitachi[x+1] == "hi"):
            #print(hitachi[x] + hitachi[x+1])
            flag += 1
        else:
            #print(hitachi[x] + hitachi[x+1])
            print("No")
            break
if(not len(hitachi) == 0):
    if(flag == len(hitachi)//2):
        print("Yes")

Buggy submission (verdict: Runtime Error):
hitachi = input()
#type(hitachi)
flag = 0
if(len(hitachi) == 1):
    hitachi += " "
for x in range(len(hitachi)):
    if(x %2 == 0):
        if(hitachi[x] + hitachi[x+1] == "hi"):
            #print(hitachi[x] + hitachi[x+1])
            flag += 1
        else:
            #print(hitachi[x] + hitachi[x+1])
            print("No")
            break
if(flag == len(hitachi)/2):
    print("Yes")

Buggy submission (verdict: Runtime Error):
hitachi = input()
flag = 0
for x in range(len(hitachi)):
    if(x %2 == 0):
        if(hitachi[x] + hitachi[x+1] == "hi"):
            #print(hitachi[x] + hitachi[x+1])
            flag += 1
        else:
            #print(hitachi[x] + hitachi[x+1])
            print("No")
            break
if(flag == len(hitachi)/2):
    print("Yes")

Buggy submission (verdict: Runtime Error):
hitachi = input()
flag = 0
for x in range(len(hitachi)):
    if(x %2 == 0):
        if(hitachi[x] + hitachi[x+1] == "hi"):
            print(hitachi[x] + hitachi[x+1])
            flag += 1
        else:
            print(hitachi[x] + hitachi[x+1])
            print("No")
            break
print(flag)
print(int(len(hitachi)/2))
if(flag == len(hitachi)/2):
    print("Yes")

Buggy submission (verdict: Runtime Error):
hitachi = input()
print(hitachi)
flag = 0
for x in range(len(hitachi)):
    if(x %2 == 0):
        if(hitachi[x] + hitachi[x+1] == "hi"):
            flag = 1
        else:
            print(hitachi[x] + hitachi[x+1])
            print("No")
            break

if(flag == len(hitachi)/2):
    print("Yes")