Recent Uber Online Assessment questions. oavoservice compiles questions and solutions to help you better prepare.
📝 Problem 1: Valid String Check
Description
Check if a string is valid based on:
- Digits only
- Must contain at least one
7 - Length must be a multiple of 3
Solution (oavoservice Guidance)
def is_valid_string(s):
if len(s) % 3 != 0:
return False
if not s.isdigit():
return False
if '7' not in s:
return False
return True
Complexity: O(N)
📝 Problem 2: Command Frequency Statistics
Description
Count the frequency of each command in a list.
Example:
Input: ["start", "stop", "start", "pause"]
Output: {"start": 2, "stop": 1, "pause": 1}
Solution
from collections import Counter
def count_commands(commands):
return dict(Counter(commands))
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Tags: #Uber #OA #OnlineAssessment #StringProcessing #HashMap #OAHelp #InterviewPrep #1point3acres
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