Buggy python submission (verdict: Time Limit Exceeded):
s = input()
keta = len(s)
n = int(s)
infi = 10 ** 10
dp = [[infi] * (2) for _ in range(keta + 1)]
dp[0][0] = 0
s = s[::-1]
for i in range(keta):
    for j in range(2):
        num = int(s[i])
        if j == 1:
            num += 1
        ni = i + 1
        if num == 10:
            nj = 1
            num = 0
            dp[ni][nj] = min(dp[ni][nj], dp[i][j] + num)
        elif num < 5:
            nj = 0
            dp[ni][nj] = min(dp[ni][nj], dp[i][j] + num)
        elif num > 5:
            nj = 1
            dp[ni][nj] = min(dp[ni][nj], dp[i][j] + 10 - num)
        else:
            nj = 0
            dp[ni][nj] = min(dp[ni][nj], dp[i][j] + num)
            nj = 1
            dp[ni][nj] = min(dp[ni][nj], dp[i][j] + 10 - num)
print(min(dp[keta][0], dp[keta][1] + 1))


Fixed submission:
s = "0" + input()
keta = len(s)
dp = [0] * (keta + 1)
kuri = 0
for i in range(keta):
    ni = i + 1
    num = int(s[-i - 1])
    if kuri:
        num += 1
        kuri = 0
    if num == 10:
        kuri = 1
        dp[ni] = dp[i]
    elif num < 5:
        dp[ni] = dp[i] + num
    elif num > 5:
        num %= 10
        kuri = 1
        dp[ni] = dp[i] + 10 - num
    else:
        nn = int(s[-ni - 1])
        if nn < 5:
            dp[ni] = dp[i] + num
        else:
            kuri = 1
            dp[ni] = dp[i] + 10 - num
print(dp[keta] + kuri)

Buggy python submission (verdict: Time Limit Exceeded):
s = input()
keta = len(s)
n = int(s)
infi = 10 ** 10
dp = [0] * (keta + 1)
dp[0] = 0
s = s[::-1] + "0"
kuri = 0
for i in range(keta):
    ni = i + 1
    num = int(s[i])
    if kuri:
        num += 1
        kuri = 0
    if num == 10:
        kuri = 1
        dp[ni] = dp[i]
    elif num < 5:
        dp[ni] = dp[i] + num
    elif num > 5:
        num %= 10
        kuri = 1
        dp[ni] = dp[i] + 10 - num
    else:
        nn = int(s[i + 1])
        if nn < 5:
            dp[ni] = dp[i] + num
        else:
            kuri = 1
            dp[ni] = dp[i] + 10 - num
print(dp[keta] + kuri)


Fixed submission:
s = "0" + input()
keta = len(s)
dp = [0] * (keta + 1)
kuri = 0
for i in range(keta):
    ni = i + 1
    num = int(s[-i - 1])
    if kuri:
        num += 1
        kuri = 0
    if num == 10:
        kuri = 1
        dp[ni] = dp[i]
    elif num < 5:
        dp[ni] = dp[i] + num
    elif num > 5:
        num %= 10
        kuri = 1
        dp[ni] = dp[i] + 10 - num
    else:
        nn = int(s[-ni - 1])
        if nn < 5:
            dp[ni] = dp[i] + num
        else:
            kuri = 1
            dp[ni] = dp[i] + 10 - num
print(dp[keta] + kuri)

Buggy python submission (verdict: Time Limit Exceeded):
s = input()
keta = len(s)
n = int(s)
infi = 10 ** 10
dp = [[infi] * (2) for _ in range(keta + 1)]
dp[0][0] = 0
for i in range(keta):
    num = int(s[-i - 1])
    for j in range(2):
        if j == 1:
            num += 1
        ni = i + 1
        if num == 10:
            nj = 1
            num = 0
            dp[ni][nj] = min(dp[ni][nj], dp[i][j] + num)
        elif num < 5:
            nj = 0
            dp[ni][nj] = min(dp[ni][nj], dp[i][j] + num)
        elif num > 5:
            nj = 1
            dp[ni][nj] = min(dp[ni][nj], dp[i][j] + 10 - num)
        else:
            nj = 0
            dp[ni][nj] = min(dp[ni][nj], dp[i][j] + num)
            nj = 1
            dp[ni][nj] = min(dp[ni][nj], dp[i][j] + 10 - num)
print(min(dp[keta][0], dp[keta][1] + 1))


Fixed submission:
s = "0" + input()
keta = len(s)
dp = [0] * (keta + 1)
kuri = 0
for i in range(keta):
    ni = i + 1
    num = int(s[-i - 1])
    if kuri:
        num += 1
        kuri = 0
    if num == 10:
        kuri = 1
        dp[ni] = dp[i]
    elif num < 5:
        dp[ni] = dp[i] + num
    elif num > 5:
        num %= 10
        kuri = 1
        dp[ni] = dp[i] + 10 - num
    else:
        nn = int(s[-ni - 1])
        if nn < 5:
            dp[ni] = dp[i] + num
        else:
            kuri = 1
            dp[ni] = dp[i] + 10 - num
print(dp[keta] + kuri)

Buggy python submission (verdict: Time Limit Exceeded):
s = input()
keta = len(s)
n = int(s)
infi = 10 ** 10
dp = [[infi] * (2) for _ in range(keta + 1)]
dp[0][0] = 0
s = s[::-1]
for i in range(keta):
    for j in range(2):
        num = int(s[i])
        if j == 1:
            num += 1
        ni = i + 1
        if num == 10:
            nj = 1
            num = 0
            dp[ni][nj] = min(dp[ni][nj], dp[i][j] + num)
        elif num < 5:
            nj = 0
            dp[ni][nj] = min(dp[ni][nj], dp[i][j] + num)
        elif num > 5:
            nj = 1
            dp[ni][nj] = min(dp[ni][nj], dp[i][j] + 10 - num)
        else:
            nj = 0
            dp[ni][nj] = min(dp[ni][nj], dp[i][j] + num)
            nj = 1
            dp[ni][nj] = min(dp[ni][nj], dp[i][j] + 10 - num)
print(min(dp[keta][0], dp[keta][1] + 1))


Fixed submission:
s = "0" + input()
keta = len(s)
dp = [0] * (keta + 1)
kuri = 0
for i in range(keta):
    ni = i + 1
    num = int(s[-i - 1])
    if kuri:
        num += 1
        kuri = 0
    if num == 10:
        kuri = 1
        dp[ni] = dp[i]
    elif num < 5:
        dp[ni] = dp[i] + num
    elif num > 5:
        num %= 10
        kuri = 1
        dp[ni] = dp[i] + 10 - num
    else:
        nn = int(s[-ni - 1])
        if nn < 5:
            dp[ni] = dp[i] + num
        else:
            kuri = 1
            dp[ni] = dp[i] + 10 - num
print(dp[keta] + kuri)