Wipro

Wipro

Global information technology, consulting and business process services company.

4 Rounds ~21 Days Medium
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The Interview Loop

Recruiter Screen (30 min)

Standard fit check, behavioral questions, and resume overview.

Technical Loop (3-4 Rounds)

Deep dive into domain knowledge, coding, and system design.

Interview Question Bank

Backend Engineer • Coding • easy

Given the head of a linked list, determine if it has a cycle in it.

#Linked List #Two Pointers
Practice
Backend Engineer • Coding • easy

Given two sorted integer arrays, merge them into a single sorted array without using extra space (if modifying in place) or in O(N+M) time.

#Arrays #Two Pointers
Practice
Backend Engineer • Coding • easy

Write a Java program to reverse a string without using any built-in reverse functions.

#Strings #Loops
Practice
Backend Engineer • Coding • easy

Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.

#Strings #Stack
Practice
Backend Engineer • Coding • easy

Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.

#Arrays #Hash Table
Practice
Backend Engineer • Coding • medium

Given a string, find the length of the longest substring without repeating characters.

#Strings #Sliding Window #Hash Set
Practice
Backend Engineer • Coding • medium

Given an array of strings, group the anagrams together.

#Arrays #Strings #Hash Table
Practice
Cloud Engineer • Coding • easy

Given a string containing just the characters '(', ')', '{', '}', '[' and ']', write a function to determine if the input string is valid.

#Data Structures #Stack #Python
Practice
Data Engineer • Coding • medium

Given an array of integers, write a Python function to move all zeros to the end of the array while maintaining the relative order of the non-zero elements. Do this in-place.

#Arrays #Two Pointers #Python
Practice
Data Scientist • Coding • easy

Write a Python function from scratch to calculate the cosine similarity between two lists of numbers.

#Python #Math #Vector Operations
Practice
Frontend Engineer • Coding • medium

Write a function to find the length of the longest substring without repeating characters.

#Sliding Window #Strings #Hash Map
Practice
Frontend Engineer • Coding • medium

Write a JavaScript function to check if two deeply nested objects are equal.

#Recursion #Object Manipulation #Data Structures
Practice
Frontend Engineer • Coding • medium

Write a function to flatten a deeply nested array of integers without using Array.prototype.flat().

#Recursion #Data Structures #Arrays
Practice
Full Stack Engineer • Coding • easy

Write a program to check if a string is a valid palindrome, considering only alphanumeric characters and ignoring cases.

#Strings #Two Pointers
Practice
Full Stack Engineer • Coding • medium

Write a function to find the length of the longest substring without repeating characters.

#Strings #Sliding Window #Hash Map
Practice
Full Stack Engineer • Coding • easy

Given an array of integers, return indices of the two numbers such that they add up to a specific target.

#Arrays #Hash Map
Practice
Full Stack Engineer • Coding • easy

Write a program to reverse a singly linked list.

#Linked Lists #Pointers
Practice
Full Stack Engineer • Coding • hard

Implement an LRU (Least Recently Used) Cache.

#Design #Hash Map #Doubly Linked List
Practice
Full Stack Engineer • Coding • medium

Write a Java program to group anagrams from an array of strings.

#Strings #Hash Map #Sorting
Practice
Full Stack Engineer • Coding • easy

Find the missing number in a given integer array containing numbers from 1 to N.

#Arrays #Math #Bit Manipulation
Practice
Full Stack Engineer • Coding • medium

Merge overlapping intervals in an array of intervals.

#Arrays #Sorting
Practice
Machine Learning Engineer • Coding • medium

Write a Python function from scratch to compute the TF-IDF scores for a given list of text documents.

#Python #NLP #Text Processing
Practice
Machine Learning Engineer • Coding • easy

Given a binary tree, write a Python function to find the maximum depth of the tree.

#Data Structures #Trees #Recursion
Practice
Machine Learning Engineer • Coding • easy

Given an array of integers representing stock prices on consecutive days, write a function to return the maximum profit you can achieve from buying and selling a stock exactly once.

#Arrays #Optimization #Dynamic Programming
Practice
Machine Learning Engineer • Coding • medium

Write a Python program to implement the K-Means clustering algorithm from scratch.

#Python #Clustering #Math
Practice
Software Engineer • Coding • easy

Detect if a linked list has a cycle in it.

#Linked List #Two Pointers
Practice
Software Engineer • Coding • medium

Find the longest substring without repeating characters in a given string.

#Strings #Sliding Window #Hash Set
Practice
Software Engineer • Coding • easy

Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.

#Arrays #Hash Table
Practice
Software Engineer • Coding • medium

Given a binary tree, write a function to perform a level order traversal (Breadth-First Search).

#Trees #BFS #Queue
Practice
Software Engineer • Coding • easy

Find the first non-repeating character in a string and return its index. If it does not exist, return -1.

#Strings #Hash Table
Practice
Software Engineer • Coding • easy

You are climbing a staircase. It takes n steps to reach the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?

#Dynamic Programming #Math
Practice
Software Engineer • Coding • hard

Merge two sorted arrays into a single sorted array without using extra space (O(1) space complexity).

#Arrays #Two Pointers #Sorting
Practice
Software Engineer • Coding • medium

Find the Lowest Common Ancestor (LCA) of a Binary Search Tree.

#Trees #BST #Recursion
Practice
Software Engineer • Coding • easy

Check if two strings are valid anagrams of each other.

#Strings #Hash Table #Sorting
Practice
Software Engineer • Coding • easy

Find the missing number in an array containing n distinct numbers taken from 0, 1, 2, ..., n.

#Arrays #Math #Bit Manipulation
Practice

Difficulty Radar

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Meet Your Interviewers

The "Standard" Interviewer

Senior Engineer

Focuses on core competencies, system constraints, and clear communication.

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Unwritten Rules

Think Out Loud

Always explain your thought process before writing code or drawing architecture.

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