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Lukegao: by freem.ai...
2025-12-28T05:41:29Z
<p>by freem.ai...</p>
<p><b>New page</b></p><div><br />
{{DISPLAYTITLE:4-digit codes sum 17}}<br />
<br />
''This conversation was exported from ChatGPT''<ref>{{cite web|title=4-digit codes sum 17|url=https://chatgpt.com/share/69508c1f-2064-8012-8f0a-41df99edf034|publisher=ChatGPT|access-date=2025-12-28}}</ref><br />
<br />
== gpt-5-2-thinking ==<br />
=== User: Give me all 4-digit codes such that the sum of the digits is 17 and at least one digit appears twice. ===<br />
Give me all 4-digit codes such that the sum of the digits is 17 and at least one digit appears twice. Use Python to generate and validate.<br />
<br />
=== Assistant: ===<br />
<br />
<br />
=== Assistant: python ===<br />
<syntaxhighlight lang="python">codes = []<br />
for n in range(10000):<br />
s = f"{n:04d}" # includes leading zeros<br />
digits = [int(ch) for ch in s]<br />
if sum(digits) == 17 and len(set(digits)) < 4: # at least one repeated digit<br />
codes.append(s)<br />
<br />
=== validate ===<br />
assert all(sum(int(ch) for ch in c) == 17 for c in codes)<br />
assert all(len(set(c)) < 4 for c in codes)<br />
<br />
print(len(codes))<br />
print("\n".join(codes))<br />
<br />
</syntaxhighlight><br />
<br />
Output (276 codes):<br />
<br />
<syntaxhighlight>0089<br />
0098<br />
0188<br />
0377<br />
0449<br />
0494<br />
0557<br />
0566<br />
0575<br />
0656<br />
0665<br />
0737<br />
0755<br />
0773<br />
0809<br />
0818<br />
0881<br />
0890<br />
0908<br />
0944<br />
0980<br />
1088<br />
1169<br />
1178<br />
1187<br />
1196<br />
1277<br />
1448<br />
1466<br />
1484<br />
1556<br />
1565<br />
1619<br />
1646<br />
1655<br />
1664<br />
1691<br />
1718<br />
1727<br />
1772<br />
1781<br />
1808<br />
1817<br />
1844<br />
1871<br />
1880<br />
1916<br />
1961<br />
2177<br />
2249<br />
2258<br />
2267<br />
2276<br />
2285<br />
2294<br />
2339<br />
2366<br />
2393<br />
2429<br />
2447<br />
2474<br />
2492<br />
2528<br />
2555<br />
2582<br />
2627<br />
2636<br />
2663<br />
2672<br />
2717<br />
2726<br />
2744<br />
2762<br />
2771<br />
2825<br />
2852<br />
2924<br />
2933<br />
2942<br />
3077<br />
3239<br />
3266<br />
3293<br />
3329<br />
3338<br />
3347<br />
3356<br />
3365<br />
3374<br />
3383<br />
3392<br />
3437<br />
3446<br />
3455<br />
3464<br />
3473<br />
3536<br />
3545<br />
3554<br />
3563<br />
3626<br />
3635<br />
3644<br />
3653<br />
3662<br />
3707<br />
3734<br />
3743<br />
3770<br />
3833<br />
3923<br />
3932<br />
4049<br />
4094<br />
4148<br />
4166<br />
4184<br />
4229<br />
4247<br />
4274<br />
4292<br />
4337<br />
4346<br />
4355<br />
4364<br />
4373<br />
4409<br />
4418<br />
4427<br />
4436<br />
4445<br />
4454<br />
4463<br />
4472<br />
4481<br />
4490<br />
4535<br />
4544<br />
4553<br />
4616<br />
4634<br />
4643<br />
4661<br />
4724<br />
4733<br />
4742<br />
4814<br />
4841<br />
4904<br />
4922<br />
4940<br />
5057<br />
5066<br />
5075<br />
5156<br />
5165<br />
5228<br />
5255<br />
5282<br />
5336<br />
5345<br />
5354<br />
5363<br />
5435<br />
5444<br />
5453<br />
5507<br />
5516<br />
5525<br />
5534<br />
5543<br />
5552<br />
5561<br />
5570<br />
5606<br />
5615<br />
5633<br />
5651<br />
5660<br />
5705<br />
5750<br />
5822<br />
6056<br />
6065<br />
6119<br />
6146<br />
6155<br />
6164<br />
6191<br />
6227<br />
6236<br />
6263<br />
6272<br />
6326<br />
6335<br />
6344<br />
6353<br />
6362<br />
6416<br />
6434<br />
6443<br />
6461<br />
6506<br />
6515<br />
6533<br />
6551<br />
6560<br />
6605<br />
6614<br />
6623<br />
6632<br />
6641<br />
6650<br />
6722<br />
6911<br />
7037<br />
7055<br />
7073<br />
7118<br />
7127<br />
7172<br />
7181<br />
7217<br />
7226<br />
7244<br />
7262<br />
7271<br />
7307<br />
7334<br />
7343<br />
7370<br />
7424<br />
7433<br />
7442<br />
7505<br />
7550<br />
7622<br />
7703<br />
7712<br />
7721<br />
7730<br />
7811<br />
8009<br />
8018<br />
8081<br />
8090<br />
8108<br />
8117<br />
8144<br />
8171<br />
8180<br />
8225<br />
8252<br />
8333<br />
8414<br />
8441<br />
8522<br />
8711<br />
8801<br />
8810<br />
8900<br />
9008<br />
9044<br />
9080<br />
9116<br />
9161<br />
9224<br />
9233<br />
9242<br />
9323<br />
9332<br />
9404<br />
9422<br />
9440<br />
9611<br />
9800<br />
<br />
</syntaxhighlight><br />
<br />
== References ==<br />
<references /><br />
<br />
<br />
[[Category:ChatGPT Shares]]<br />
[[Category:openai]]</div>
Lukegao