Uber 2025 Internship OA Latest Questions. oavoservice helps you pass the screening and get an interview.
📋 Question 1: String Matching
Implement a simple string matching algorithm supporting * and ? wildcards.
def isMatch(s, p):
m, n = len(s), len(p)
dp = [[False] * (n + 1) for _ in range(m + 1)]
dp[0][0] = True
# Handle * at start
for j in range(1, n + 1):
if p[j-1] == '*':
dp[0][j] = dp[0][j-1]
for i in range(1, m + 1):
for j in range(1, n + 1):
if p[j-1] == '*':
dp[i][j] = dp[i-1][j] or dp[i][j-1]
elif p[j-1] == '?' or s[i-1] == p[j-1]:
dp[i][j] = dp[i-1][j-1]
return dp[m][n]
📋 Question 2: Largest Rectangle Area
def largestRectangleArea(heights):
stack = []
max_area = 0
heights.append(0)
for i, h in enumerate(heights):
while stack and heights[stack[-1]] > h:
height = heights[stack.pop()]
width = i if not stack else i - stack[-1] - 1
max_area = max(max_area, height * width)
stack.append(i)
return max_area
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