liqiang
b119135836
9.9 KiB
Cursor Chat: ai-agent-book
Metadata
- Project: ai-agent-book
- Path:
/Users/boj - Date: 2025-10-18 17:28:58
- Session ID:
b9829137-f1d6-4b11-b6b7-d08b9e5d293c
Conversation
👤 You
JSON streaming Problem statement To improve application responsiveness, we sometimes want to begin processing JSON responses before the entire payload is received. This requires special parsers that support JSON streaming, since standard JSON parsers cannot handle incomplete input.
However, it is always possible to convert a partial JSON into a valid one by appending additional characters. In most cases, there are infinitely many ways to do so.
{"For":"example → {"For":"example"}
Here's your task: for each input line representing the beginning of a valid JSON, output the minimum number of characters needed to complete the JSON.
You are not expected to handle all edge cases. Try to cover as many as possible within the time limit. When in doubt, check json.org or the ECMA-404 JSON specification.
Constraints
Each input line is either a valid JSON or the beginning of a valid JSON without line breaks (\n).
JSON objects, if present, have no duplicate keys.
Sample input
true
nul
[2,
{"a"
Expected output
0
1
2
3
Explanation
true is already a complete JSON, so no extra characters need to be added.
nul can be completed by adding l (i.e. null).
[2, can be completed by adding a digit and ] (e.g. [2,2]).
{"a" can be completed by adding :, a digit, and } (e.g. {"a":4}).
Input
true
nul
[2,
{"a"
tru
tr
t
false
fals
fal
fa
f
null
nu
n
1
0.
3.14
2.18e
6.28E
5e+
7.9E-
""
"
"0.
""
"\n\u
"tr\ue
"tr\uce
"d\uece
"\u263A
"\t\u263B\r"
[]
[ ]
[1.23,false]
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🤖 Cursor Assistant
Looking at this JSON streaming problem, I need to parse partial JSON strings and determine the minimum number of characters needed to complete them.
Let me analyze the problem:
- Track the parsing state (in string, number, keyword, etc.)
- Track open structures (arrays, objects)
- Determine what's needed to complete the JSON
I'll create a solution:
🤖 Cursor Assistant
Let me test this solution with the provided input:
🤖 Cursor Assistant
Perfect! The basic tests pass. Now let me test with the full input file:
Exported from Cursor View