Hội thi Tin học trẻ toàn quốc

THAY ĐỔI CHỮ SỐ

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Points: 100.00 (partial)

Time limit: 1.0s

Memory limit: 512M

Input: stdin

Output: stdout

Problem type

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Python, Scratch

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khoasadnhan commented on April 15, 2025, 9:26 p.m.

from itertools import combinations, product

def is_valid(s): return s[0] != '0' and int(s[-2:]) % 4 == 0

def smallestdivisibleby4(N): Nstr = str(N) length = len(Nstr) minnum = None

for k in range(3):  
    for positions in combinations(range(length), k):  
        digits_choices = [list("0123456789") if i in positions else [N_str[i]] for i in range(length)]
        for candidate_digits in product(*digits_choices):
            candidate = ''.join(candidate_digits)
            if is_valid(candidate):
                if min_num is None or int(candidate) < int(min_num):
                    min_num = candidate

return min_num

N = int(input()) print(smallestdivisibleby_4(N))

0

hainam4b commented on April 14, 2025, 4:16 p.m.

nhìn gì

-1

phambahuy5ddl commented on April 11, 2025, 5:14 p.m.

hello

-1

phambahuy5ddl commented on April 11, 2025, 5:12 p.m.

eeeeee

0

phambahuy5ddl commented on April 11, 2025, 5:12 p.m.

nguyên

-1

nguyentrungnguyen5ddl commented on April 11, 2025, 5:12 p.m.

huy

-1

nguyentrungnguyen5ddl commented on April 11, 2025, 5:10 p.m. ← edited →

1//1//1/1/11//1/1 khó

-1

nguyentrungnguyen5ddl commented on April 11, 2025, 5:08 p.m. ← edited →

1\

-1

nguyentrungnguyen5ddl commented on April 11, 2025, 5:08 p.m. ← edited →

khó quá có ai vhir ko

-1

nguyentrungnguyen5ddl commented on April 11, 2025, 5:08 p.m.

b evdfcaeb

-1

leducanh5b_thqp2 commented on April 10, 2025, 2:08 p.m. ← edit 2 →

.

-1

phamngocthai commented on March 26, 2025, 3:42 p.m. ← edit 2 →

:0

-1

Meoxin1138E commented on Nov. 29, 2024, 5:55 p.m.

duybaothcq

-5

Meoxin1138E commented on Nov. 29, 2024, 5:55 p.m.

tao đã quay trở lại

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-1

tinhoctretqc commented on Nov. 13, 2024, 3:57 p.m.

có bạn nào giải scratch cho xin tham khảo với,xin cảm ơn

-1

SK24_A560 commented on July 29, 2024, 11:23 a.m.

code python cho ai bí idea: n = int(input()) s = list(map(int, str(n))) if len(s) > 2: k = 2 if n % 4 != 0: if n % 2 == 0: s[len(s) - 2] = 0 if s[len(s) - 1] % 4 == 0 else 1 else: s[len(s) - 1] = 0 if s[len(s) - 2] % 2 == 0 else 1 k -= 1 i = 1 if s[0] != 1: s[0] = 1 k -= 1 while k > 0 and i < len(s): if s[i] != 0: s[i] = 0 k -= 1 i += 1 print("".join([str(x) for x in s])) elif len(s) == 2: print(12) else: print(0)

-1

thienthansanga2k13 commented on July 5, 2024, 9:09 a.m.

Có bạn nào có code của scratch không? chỉ mik với, mình làm bị sai hoài à T^T Mắc kẹt ở bài này hơn 5 ngày rồi

-1

tranquocdat2k13 commented on July 6, 2024, 8:37 a.m.

tui có nè

2

tanpahtth commented on May 28, 2024, 8:03 p.m. ← edit 2 →

solve: https://codebeautify.org/alleditor/y240053b6

0

tranquocdat2k13 commented on July 2, 2024, 9:02 a.m.

cảm ơn nhen!

-5

lolphjwgfy4 commented on May 9, 2024, 10:12 p.m.

admin ơi em bị người xấu vô acc anhducthcp

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11

admin commented on May 10, 2024, 8:17 a.m.

Bạn có thể cung cấp thêm thông tin về tình trạng tài khoản bị người xấu sử dụng thông qua email của Ban Tổ chức Hội thi tại tainangviet.twd@gmail.com để được xem xét. Trân trọng cảm ơn.

-13

truongphat commented on May 8, 2024, 7:13 p.m.

??!

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-5

truongphat commented on May 8, 2024, 7:12 p.m.

mọi người giúp mình làm bài này với

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-4

CLMOKJS commented on May 8, 2024, 1:16 p.m. ← edited →

ACC duybaothcq của tôi tự nhiên bị khoá tôi không làm gì hết có thằng tự nhiên vào acc phá tôi nhá admin hãy trả lại acc cho tôi được không?

12

admin commented on May 8, 2024, 2:09 p.m.

Bạn có thể cung cấp thêm thông tin về tình trạng tài khoản bị người xấu sử dụng thông qua email của Ban Tổ chức Hội thi tại tainangviet.twd@gmail.com để được xem xét. Trân trọng cảm ơn.

-1

khanhngocc1 commented on May 7, 2024, 6:27 p.m.

ai bt làm ko cứu tui

8

anhtuthcq commented on May 7, 2024, 4:04 p.m.

ai biết làm không vậy

1

doanngocgiahung_2004 commented on May 24, 2024, 8:43 p.m.

tui biết , cần code python không tôi gửi cho

-4

DucKien2014 commented on June 29, 2024, 4:13 p.m.

Tui

-2

tranquocdat2k13 commented on July 4, 2024, 8:34 a.m.

def xuli(s, pos, kitu): sy = s[pos + 1:]; sx = s[:pos]; return sx + str(kitu) + sy; s = input(); n = len(s) s1 = s; res = 10**18; for i in range(1, 10): s1 = xuli(s1, 0, i) temp = s1; for j in range(1, n): s1 = temp; for k in range(10): s1 = xuli(s1, j, k); if int(s1) % 4 == 0: res = min(res, int(s1)); s1 = s; for t in range(1, n): s1 = s; for i in range(10): s1 = xuli(s1, t, i) temp = s1; for j in range(1, n): s1 = temp; for k in range(10): if int(s1) % 4 == 0: res = min(res, int(s1)); s1 = xuli(s1, j, k); print(res)

3

anhtuthcq commented on May 7, 2024, 4:04 p.m.

ai biết làm không vậy

4

anhtuthcq commented on May 7, 2024, 4:04 p.m.

hi

-2

anhtuthcq commented on May 7, 2024, 4:03 p.m.

xin chào

-26

duybaothcq commented on May 7, 2024, 7:31 a.m. ← edited →

XIN CHÀO CHO TÔI 1 VOTE ĐÊ

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-4

anhtuthcq commented on May 5, 2024, 8:54 a.m. ← edited →

làm thế nào vậy

-33

duybaothcq commented on May 4, 2024, 9:01 p.m.

HaHaHa

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-27

anhducthcq commented on May 3, 2024, 4:34 p.m.

nha mọi người

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-33

anhducthcq commented on May 3, 2024, 4:34 p.m.

Cho xin một vote nha

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-24

anhducthcq commented on May 3, 2024, 4:34 p.m.

Hello mọi người

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-30

anhducthcq commented on May 3, 2024, 4:30 p.m.

Hế lu

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