Buggy python submission (verdict: Time Limit Exceeded):
N=input()
X=len(N)
INF=10**100
dp=[[INF,INF] for i in range(0,X+1)]
dp[0][0]=0
dp[0][1]=1
for j in range(1,X+1):
    dp[j][0]=min(dp[j-1][0]+int(N[j-1])%10,dp[j-1][1]+10-int(N[j-1])%10)
    if int(N[j-1])%10!=9:
        dp[j][1]=min(dp[j-1][1]+9-int(N[j-1])%10,dp[j-1][0]+int(N[j-1])%10+1)
    else:
        dp[j][1]=dp[j-1][1]+9-int(N[j-1])%10
print(dp[X][0])

Fixed submission:
def main():
    N=input()
    X=len(N)
    INF=10**100
    dp=[[INF,INF] for i in range(0,X+1)]
    dp[0][0]=0
    dp[0][1]=1
    for j in range(1,X+1):
        dp[j][0]=min(dp[j-1][0]+int(N[j-1])%10,dp[j-1][1]+10-int(N[j-1])%10)
        if int(N[j-1])%10!=9:
            dp[j][1]=min(dp[j-1][1]+9-int(N[j-1])%10,dp[j-1][0]+int(N[j-1])%10+1)
        else:
            dp[j][1]=dp[j-1][1]+9-int(N[j-1])%10
    print(dp[X][0])

if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
N=int(input())
X=len(str(N))
INF=10**100
dp=[[INF,INF] for i in range(0,X+1)]
dp[0][0]=0
dp[0][1]=1
for j in range(1,X+1):
    i=N//(10**(X-j))
    dp[j][0]=min(dp[j-1][0]+i%10,dp[j-1][1]+10-i%10)
    if i%10!=9:
        dp[j][1]=min(dp[j-1][1]+9-i%10,dp[j-1][0]+i%10+1)
    else:
        dp[j][1]=dp[j-1][1]+9-i%10
print(dp[X][0])

Fixed submission:
def main():
    N=input()
    X=len(N)
    INF=10**100
    dp=[[INF,INF] for i in range(0,X+1)]
    dp[0][0]=0
    dp[0][1]=1
    for j in range(1,X+1):
        dp[j][0]=min(dp[j-1][0]+int(N[j-1])%10,dp[j-1][1]+10-int(N[j-1])%10)
        if int(N[j-1])%10!=9:
            dp[j][1]=min(dp[j-1][1]+9-int(N[j-1])%10,dp[j-1][0]+int(N[j-1])%10+1)
        else:
            dp[j][1]=dp[j-1][1]+9-int(N[j-1])%10
    print(dp[X][0])

if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
N=int(input())
X=len(str(N))
INF=10**100
dp=[[INF,INF] for i in range(0,X+1)]
dp[0][0]=0
dp[0][1]=1
for j in range(1,X+1):
    i=N//(10**(X-j))
    dp[j][0]=min(dp[j-1][0]+i%10,dp[j-1][1]+10-i%10)
    if i%10!=9:
        dp[j][1]=min(dp[j-1][1]+9-i%10,dp[j-1][0]+i%10+1)
    else:
        dp[j][1]=dp[j-1][1]+9-i%10
print(dp[X][0])

Fixed submission:
def main():
    N=input()
    X=len(N)
    INF=10**100
    dp=[[INF,INF] for i in range(0,X+1)]
    dp[0][0]=0
    dp[0][1]=1
    for j in range(1,X+1):
        dp[j][0]=min(dp[j-1][0]+int(N[j-1])%10,dp[j-1][1]+10-int(N[j-1])%10)
        if int(N[j-1])%10!=9:
            dp[j][1]=min(dp[j-1][1]+9-int(N[j-1])%10,dp[j-1][0]+int(N[j-1])%10+1)
        else:
            dp[j][1]=dp[j-1][1]+9-int(N[j-1])%10
    print(dp[X][0])

if __name__ == '__main__':
    main()

Buggy python submission (verdict: Runtime Error):
from itertools import groupby

def fivefunction(num):
    if num>=5:
        return 1
    else:
        return 0

N=input()
A=[int(N[i]) for i in range(0,len(N))]
fiveonlyzone=0
for i in range(0,len(N)):
    if i==0:
        if A[i]==5 and A[i+1]<5:
            fiveonlyzone+=1
    elif i==len(N)-1:
        if A[i-1]<5 and A[i]==5:
            fiveonlyzone+=1
    else:
        if A[i-1]<5 and A[i]==5 and A[i+1]<5:
            fiveonlyzone+=1

Ndigitsum=sum(A)
data=[fivefunction(A[i]) for i in range(0,len(N))]
Adigitsum=0
for i in range(0,len(N)):
    if fivefunction(A[i])==0:
        Adigitsum+=A[i]
X=groupby(data)
zone=0
digit=0
for key,group in X:
    g=len(list(group))
    if key==1:
        zone+=1
        digit+=g
print(9*digit+2*zone+2*Adigitsum-Ndigitsum-fiveonlyzone)

Fixed submission:
def main():
    N=input()
    X=len(N)
    INF=10**100
    dp=[[INF,INF] for i in range(0,X+1)]
    dp[0][0]=0
    dp[0][1]=1
    for j in range(1,X+1):
        dp[j][0]=min(dp[j-1][0]+int(N[j-1])%10,dp[j-1][1]+10-int(N[j-1])%10)
        if int(N[j-1])%10!=9:
            dp[j][1]=min(dp[j-1][1]+9-int(N[j-1])%10,dp[j-1][0]+int(N[j-1])%10+1)
        else:
            dp[j][1]=dp[j-1][1]+9-int(N[j-1])%10
    print(dp[X][0])

if __name__ == '__main__':
    main()

Buggy python submission (verdict: Runtime Error):
from itertools import groupby

def fivefunction(num):
    if num>=5:
        return 1
    else:
        return 0

N=input()
A=[int(N[i]) for i in range(0,len(N))]
fiveonlyzone=0
for i in range(0,len(N)):
    if i==0:
        if A[i]==5 and A[i+1]<5:
            fiveonlyzone+=1
    elif i==len(N)-1:
        if A[i-1]<5 and A[i]==5:
            fiveonlyzone+=1
    else:
        if A[i-1]<5 and A[i]==5 and A[i+1]<5:
            fiveonlyzone+=1

Ndigitsum=sum(A)
data=[fivefunction(A[i]) for i in range(0,len(N))]
Adigitsum=0
for i in range(0,len(N)):
    if fivefunction(A[i])==0:
        Adigitsum+=A[i]
    else:
        A[i]=0
X=groupby(data)
zone=0
digit=0
for key,group in X:
    g=len(list(group))
    if key==1:
        zone+=1
        digit+=g
print(zone,digit,A)
print(9*digit+2*zone+2*Adigitsum-Ndigitsum-fiveonlyzone)

Fixed submission:
def main():
    N=input()
    X=len(N)
    INF=10**100
    dp=[[INF,INF] for i in range(0,X+1)]
    dp[0][0]=0
    dp[0][1]=1
    for j in range(1,X+1):
        dp[j][0]=min(dp[j-1][0]+int(N[j-1])%10,dp[j-1][1]+10-int(N[j-1])%10)
        if int(N[j-1])%10!=9:
            dp[j][1]=min(dp[j-1][1]+9-int(N[j-1])%10,dp[j-1][0]+int(N[j-1])%10+1)
        else:
            dp[j][1]=dp[j-1][1]+9-int(N[j-1])%10
    print(dp[X][0])

if __name__ == '__main__':
    main()