Shruti Dubey

MCA student | Web Development Enthusiast | Passionate about solving problems with Data Structures and Algorithms.

[News Matrix @NewsMatrixIND]

Arrest Abhijeet Dipke

Repeat after me.

[Shruti Dubey @shuruupmaneu]

Day 51 of GFG 160 Days Of Problem Solving
Solved "Find Only Repetitive Element from 1 to n-1" using XOR-based bit manipulation.
Clean and efficient O(n) time, O(1) space solution.
#gfg160 #gfgstreak2025 @geeksforgeeks

[Shruti Dubey @shuruupmaneu]

Day 50 of GFG 160 Days Of Problem Solving
Solved the "Implement Pow" problem using recursion with exponentiation by squaring. Learned to handle negative exponents and optimized the solution to O(log n) time complexity.
#gfg160 #gfgstreak2025 @geeksforgeeks

[Shruti Dubey @shuruupmaneu]

Day 49 of my coding journey on GeeksforGeeks.

Today I solved the "Permutations of a String" problem.
Consistency is key, and every line of code is a step forward.

#gfg160 #gfgstreak2025 @geeksforgeeks

[Shruti Dubey @shuruupmaneu]

Day 48 of my 160 Days of Problem Solving on GeeksforGeeks.
Solved a problem using binary search to find the k-th missing positive number in a sorted array. Efficient use of index math and logical conditions.
#gfg160 #gfgstreak2025 @geeksforgeeks

[Shruti Dubey @shuruupmaneu]

Day 47 of my GFG 160 Days of Problem Solving challenge.
Solved: “Remove Loop in Linked List”
Learned to handle edge cases in Floyd’s Cycle Detection and avoid NullPointerException by careful pointer checks.
More to learn ahead.
#gfg160 #gfgstreak2025 @geeksforgeeks

[Shruti Dubey @shuruupmaneu]

Completed Day 46 of the 160-day problem-solving journey on GeeksforGeeks.
Today's challenge was "Find the first node of loop in linked list".
Implemented Floyd’s Cycle Detection Algorithm to identify and locate the start of the loop.
#gfg160 #gfgstreak2025 @geeksforgeeks

[Shruti Dubey @shuruupmaneu]

Day 45 of my 160-day problem solving journey on GeeksforGeeks.
Solved the "Detect Loop in Linked List" problem using Floyd’s Cycle Detection Algorithm .
@geeksforgeeks #gfg160 #gfgstreak2025

[Shruti Dubey @shuruupmaneu]

Day 44 of solving on GFG 💻
Solved Clone List with Next and Random Pointer – used an optimized approach without extra space. Practiced pointer manipulation & deep copying techniques.
#gfg160 #gfgstreak2025 @geeksforgeeks

[Shruti Dubey @shuruupmaneu]

Day 43 of GFG’s 160 Days of Problem Solving.

Today, I solved the problem “Add Number Linked Lists,” which focuses on adding two numbers represented by linked lists, accounting for leading zeros and proper digit-wise addition logic.

#gfg160 #gfgstreak2025 @geeksforgeeks

[Shruti Dubey @shuruupmaneu]

Day 42 of GFG 160 Days of Problem Solving:
Solved the "Reverse a Linked List in Groups of Given Size" problem using an iterative approach. Focused on optimizing time complexity to O(n) and maintaining constant space.
#gfg160 #gfgstreak2025 @geeksforgeeks

[Shruti Dubey @shuruupmaneu]

Day 41 of GFG 160 Days of Problem Solving
Solved the "Merge Two Sorted Linked Lists" problem today. It was a good exercise in handling edge cases and practicing linked list manipulation with proper pointer updates.

#gfg160 #gfgstreak2025 @geeksforgeeks

[Shruti Dubey @shuruupmaneu]

Day 40 of GFG 160 Days of Problem Solving

Solved "Rotate a Linked List" using pointer manipulation and traversal logic. Practiced optimizing rotations with modulus and edge case handling. Strengthened grasp of linked list fundamentals.

#gfg160 #gfgstreak2025 @geeksforgeeks

[Shruti Dubey @shuruupmaneu]

Day 39 of the GFG 160 Days of Problem Solving: Solved the "Reverse a Linked List" problem using recursion. A great reminder of the power of clean logic in manipulating data structures.
#gfg160 #gfgstreak2025 @geeksforgeeks

[Shruti Dubey @shuruupmaneu]

Day 38 – GFG 160 Days of Problem Solving

Solved “Product of Array Except Self” using a two-pass approach. Handled edge cases like one or multiple zeros to avoid divide-by-zero errors while maintaining O(n) time.
#gfg160 #gfgstreaak2025 @geeksforgeeks

[Shruti Dubey @shuruupmaneu]

@geeksforgeeks 37 days completed

[Shruti Dubey @shuruupmaneu]

Day 37 of GFG 160 Days of Problem Solving ✅
Solved the problem “Largest Subarray of 0’s and 1’s” today.
Grateful to be learning and refining problem-solving strategies through consistent practice.
#gfg160 #gfgstreak2025 @geeksforgeeks

[Shruti Dubey @shuruupmaneu]

Day 36 of GFG 160 Days of Problem Solving
Solved the problem "Longest Subarray with Sum K" using a brute-force approach without using a HashMap.

#gfg160 #gfgstreak2025 @geeksforgeeks

[Shruti Dubey @shuruupmaneu]

Day 35 of the GeeksforGeeks 160-day streak
Focused on the Equilibrium Point problem—an important exercise in array and prefix sum logic.
#gfg160 #gfgstreak2025 @geeksforgeeks

[Shruti Dubey @shuruupmaneu]

Day 34 of GFG 160 Days of Problem Solving

Solved the problem "Longest substring with distinct characters"
It was a good refresher on sliding window techniques and character index tracking for efficient substring analysis.
#gfg160 #gfgstreak2025 @geeksforgeeks