DSA SUPREME QUESTIONS WEEK   WISE
Q	QUESTION	T.C	S.C	LINK
WEEK   3  ARRAYS & VECTORS
1	Sort Colors(Leetcode Q75)			https://leetcode.com/problems/sort-colors/
2	Move All Negative Numbers to Left of Array	n		https://github.com/rohillanishant/DSA-Cpp/blob/master/ArrayQues/MoveNegativeToLeft.cpp
3	Find Duplicate Number (LeetCode Q287)	n		https://leetcode.com/problems/find-the-duplicate-number/
4	Missing Elements from an array With Duplicates	n		https://github.com/rohillanishant/DSA-Cpp/blob/master/ArrayQues/FindMissing.cpp
5	First Repeating Element	n		https://github.com/rohillanishant/DSA-Cpp/blob/master/ArrayQues/FstRptElmnt.cpp
6	Common Elements in 3 Sorted Array	n1+n2+n3		https://practice.geeksforgeeks.org/problems/common-elements1132/1?utm_source=gfg&utm_medium=article&utm_campaign=bottom_sticky_on_article
7	Wave Print A Matrix	mn		https://github.com/rohillanishant/DSA-Cpp/blob/master/2DArray/WavePrintMatrix.cpp
8	Spiral Print A Matrix	mn		https://github.com/rohillanishant/DSA-Cpp/blob/master/2DArray/SpiralOrder.cpp
9	Factorial of a Large Number
WEEK   4  SEARCHING & SORTING
1	Linear Search	n	1	https://github.com/rohillanishant/DSA-Cpp/blob/master/Searching.cpp
2	Binary Search	logn	logn	https://github.com/rohillanishant/DSA-Cpp/blob/master/BinarySearch/BinarySearch.cpp
3	First & Last Occurrence (LeetCode Q34)	logn		https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/
4	Peak Index in Mountain Array (LeetCode Q852)	logn		https://leetcode.com/problems/peak-index-in-a-mountain-array/
5	Find Missing Element in range 1 to n
6	Find Pivot Element
7	Search in Rotated & Sorted Array(LeetCode Q33)	logn		https://leetcode.com/problems/search-in-rotated-sorted-array/
8	Square Root using Binary Search			https://github.com/rohillanishant/DSA-Cpp/blob/master/BinarySearch/SquareRoot.cpp
9	Binary Search in 2d Matrix			https://github.com/rohillanishant/DSA-Cpp/blob/master/BinarySearch/BinarySearchMatrix.cpp
10	Search in Nearly/Almost Sorted Array			https://github.com/rohillanishant/DSA-Cpp/blob/master/BinarySearch/SearchNearlySortedArray.cpp
11	Divide using binary search			https://github.com/rohillanishant/DSA-Cpp/blob/master/BinarySearch/Divide.cpp
12	Find element with odd occurence			https://github.com/rohillanishant/DSA-Cpp/blob/master/BinarySearch/OddOccurence.cpp
13	Selection Sort			https://github.com/rohillanishant/DSA-Cpp/blob/master/SelectionSort.cpp
14	Bubble Sort			https://github.com/rohillanishant/DSA-Cpp/blob/master/BubbleSort.cpp
15	Insertion Sort			https://github.com/rohillanishant/DSA-Cpp/blob/master/InsertionSort.cpp
1	K-diff Pairs in an Array (LeetCode Q532)			https://leetcode.com/problems/k-diff-pairs-in-an-array/
2	Find K Closest Elements (LeetCode Q658)			https://leetcode.com/problems/find-k-closest-elements/
3	Exponential Search			https://github.com/rohillanishant/DSA-Cpp/blob/master/BinarySearch/ExponentialSearch.cpp
4	Book Allocation Problem			https://practice.geeksforgeeks.org/problems/allocate-minimum-number-of-pages0937/1?utm_source=gfg&utm_medium=article&utm_campaign=bottom_sticky_on_article
5	Painter Partition Problem			https://practice.geeksforgeeks.org/problems/the-painters-partition-problem1535/1
6	Aggressive Cows			https://practice.geeksforgeeks.org/problems/aggressive-cows/1
7	EKO SPOJ			https://www.spoj.com/problems/EKO/
				https://github.com/rohillanishant/DSA-Cpp/blob/master/BinarySearch/EkoSpoj.cpp
8	PRATA SPOJ			https://www.spoj.com/problems/PRATA/
				https://github.com/rohillanishant/DSA-Cpp/blob/master/BinarySearch/PrataSpoj.cpp
WEEK   5 CHAR ARRAYS & STRINGS
1	Length of a Char Array			https://github.com/rohillanishant/DSA-Cpp/blob/master/CharArrays/LengthCharArray.cpp
2	Getline USE			https://github.com/rohillanishant/DSA-Cpp/blob/master/CharArrays/getline.cpp
3	Reverse of a Char Array			https://github.com/rohillanishant/DSA-Cpp/blob/master/CharArrays/Reverse.cpp
4	Replace all spaces by @			https://github.com/rohillanishant/DSA-Cpp/blob/master/CharArrays/Replace.cpp
5	Palindrome			https://github.com/rohillanishant/DSA-Cpp/blob/master/CharArrays/Palindrome.cpp
6	UpperCase to LowerCase			https://github.com/rohillanishant/DSA-Cpp/blob/master/CharArrays/UpperToLowerCase.cpp
7	LowerCase to Uppercase			https://github.com/rohillanishant/DSA-Cpp/blob/master/CharArrays/LowerToUpperCase.cpp
8	String Basic Functions			https://github.com/rohillanishant/DSA-Cpp/blob/master/String/Functions.cpp
9	Remove All Adjacent Duplicates In String (1047)			https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string/description/
10	Remove  All Occurrences   of a substring (1910)			https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string/description/
11	Valid palindrome II (680)			https://leetcode.com/problems/valid-palindrome-ii/
12	Minimum Time Difference (539)			https://leetcode.com/problems/minimum-time-difference/
13	Palindromic Substring (647)			https://leetcode.com/problems/palindromic-substrings/
1	Valid Anagram (242)	m+n		https://leetcode.com/problems/valid-anagram/
2	Reverse Only Letters (917)			https://leetcode.com/problems/reverse-only-letters/description/
3	Longest Common Prefix (14)	mn		https://leetcode.com/problems/longest-common-prefix/
4	Reverse Vowels of a String (345)			https://leetcode.com/problems/reverse-vowels-of-a-string/description/
5	Isomorphic Strings (205)			https://leetcode.com/problems/isomorphic-strings/description/
6	Reorganize String (767)			https://leetcode.com/problems/reorganize-string/description/
7	Group Anagrams (49)			https://leetcode.com/problems/group-anagrams/description/
8	Longest Palindromic Substring (5)			https://leetcode.com/problems/longest-palindromic-substring/description/
9	Find the Index of the First Occurrence in a String (28)			https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string/
10	String to Integer (atoi) (8)			https://leetcode.com/problems/string-to-integer-atoi/
11	String Compression (443)			https://leetcode.com/problems/string-compression/description/
12	Integer to Romans (12)			https://leetcode.com/problems/integer-to-roman/
13	Zig Zag Conversion			https://leetcode.com/problems/zigzag-conversion/
14	Largest Number (179)			https://leetcode.com/problems/largest-number/
WEEK   6 BASIC MATHS & POINTERS
1	Pointers
2	Count Primes (204)   [using Sieve   of Eratosthenes]	n(log(logn))		https://leetcode.com/problems/count-primes/description/
3	GCD/HCF			https://practice.geeksforgeeks.org/problems/gcd-of-two-numbers3459/1?utm_source=gfg&utm_medium=article&utm_campaign=bottom_sticky_on_article
4	Fast Exponent	log b		https://github.com/rohillanishant/DSA-Cpp/blob/master/FastExponent.cpp
5	Modular Exponentiation of large numbers	log b		https://practice.geeksforgeeks.org/problems/modular-exponentiation-for-large-numbers5537/1
6	Prime No in Range using Segmented Sieve	n(log(logn))		https://github.com/rohillanishant/DSA-Cpp/blob/master/SieveOfEratosthenes/SegmentedSieve.cpp
7	Product of Primes	n(log(logn))		https://practice.geeksforgeeks.org/problems/product-of-primes5328/1
WEEK   7 RECURSION
1	Climbing Stairs (70)			https://leetcode.com/problems/climbing-stairs/
2	Array Print			https://github.com/rohillanishant/DSA-Cpp/blob/master/Recursion/ArrayPrint.cpp
3	Find Maximum Element in Array using Recursion			https://github.com/rohillanishant/DSA-Cpp/blob/master/Recursion/MaxElementinArray.cpp
4	Search Key in String using Recursion			https://github.com/rohillanishant/DSA-Cpp/blob/master/Recursion/SearchCharInString.cpp
5	Print All Digits of a Number			https://github.com/rohillanishant/DSA-Cpp/blob/master/Recursion/PrintAllDigits.cpp
6	Check if array is Sorted			https://github.com/rohillanishant/DSA-Cpp/blob/master/Recursion/isSortedArray.cpp
7	Binary Search			https://github.com/rohillanishant/DSA-Cpp/blob/master/Recursion/BinarySearch.cpp
8	Print All Subsequences			https://github.com/rohillanishant/DSA-Cpp/blob/master/Recursion/Subsequence.cpp
9	Minimum no of elements whose sum=target			https://github.com/rohillanishant/DSA-Cpp/blob/master/Recursion/TargetSum.cpp
10	Cut into Segments			https://github.com/rohillanishant/DSA-Cpp/blob/master/Recursion/CutIntoSegments.cpp
11	Maximum sum by using  non adjacent elements			https://github.com/rohillanishant/DSA-Cpp/blob/master/Recursion/MaxSumNonAdjacentElements.cpp
1	Last Occurrence of a Char in String	n		https://github.com/rohillanishant/DSA-Cpp/blob/master/Recursion/LastOccurenceinString.cpp
2	Reverse a String	n		https://github.com/rohillanishant/DSA-Cpp/blob/master/Recursion/ReverseString.cpp
3	Add Strings (415)	n		https://leetcode.com/problems/add-strings/description/
4	Palindrome	n		https://github.com/rohillanishant/DSA-Cpp/blob/master/Recursion/Palindrome.cpp
5	Remove All Occurrences of a Substring	nm		https://leetcode.com/problems/remove-all-occurrences-of-a-substring/submissions/991734158/
6	Print All Subarrays	n^2
7	Best time to buy and sell stocks	n		https://leetcode.com/problems/best-time-to-buy-and-sell-stock/description/
8	House Robber (198)	2^n		https://leetcode.com/problems/house-robber/
9	Integer to English Words (273)	log10(N)		https://leetcode.com/problems/integer-to-english-words/description/
10	WildCard Matching (44)	2^n		https://leetcode.com/problems/wildcard-matching/
11	Perfect Squares (279)	n^n		https://leetcode.com/problems/perfect-squares/
12	Minimum Cost For Tickets(983)	3^n		https://leetcode.com/problems/minimum-cost-for-tickets/
13	Number of Dice Rolls With Target Sum (1155)	k^n		https://leetcode.com/problems/number-of-dice-rolls-with-target-sum/
WEEK   8 DnC & Backtracking
1	Merge Sort (DnC)	nlogn	n	https://github.com/rohillanishant/DSA-Cpp/blob/master/Recursion/MergeSort.cpp
2	Quick Sort (DnC)	nlogn(worst case- n^2)		https://github.com/rohillanishant/DSA-Cpp/blob/master/Recursion/QuickSort.cpp
3	Permutations (Backtracking)	n!	n	https://github.com/rohillanishant/DSA-Cpp/blob/master/Backtracking/Permutations.cpp
4	Rat in a maze (Backtracking)	4^(row+col)	row*col	https://practice.geeksforgeeks.org/problems/rat-in-a-maze-problem/1
5	N-Queens (Backtracking) (51)	worst-n*n(avg-n!)	n^2	https://leetcode.com/problems/n-queens/
6	Generate paranthesis (backtracking) (22)			https://leetcode.com/problems/generate-parentheses/description/
7	Letter Combinations of a Phone Number (Backtracking)	4^n	4^n	https://leetcode.com/problems/letter-combinations-of-a-phone-number/description/
8	Sudoku Solver (Backtracking) (37)	9^(row+col)	row*col	https://leetcode.com/problems/sudoku-solver/description/
1	Count Inversions : Merge Sort	nlogn	n	https://www.hackerrank.com/challenges/ctci-merge-sort/problem?isFullScreen=true
2	In Place Merge Sort	nlogn	1	https://github.com/rohillanishant/DSA-Cpp/blob/master/Recursion/InPlaceMergeSort.cpp
3	Max Sub Array Sum (53)	nlogn	logn	https://leetcode.com/problems/maximum-subarray/description/
4	QuickSort (last element as pivot) (2nd Method)	nlogn(worst case- n^2)		https://practice.geeksforgeeks.org/problems/quick-sort/1?utm_source=gfg&utm_medium=article&utm_campaign=bottom_sticky_on_article
5	Combination Sum (39)			https://leetcode.com/problems/combination-sum/description/
6	Combination Sum II (40)			https://leetcode.com/problems/combination-sum-ii/description/
7	Permutations II (47)			https://leetcode.com/problems/permutations-ii/
8	Beautiful Arrangment (526)			https://leetcode.com/problems/beautiful-arrangement/description/
9	Distribute Repeating Integers (1655)			https://leetcode.com/problems/distribute-repeating-integers/
Linked   Lists
1	Singly Linked List			https://github.com/rohillanishant/DSA-Cpp/blob/master/LinkedList/LinkedList.cpp
2	Doubly Linked List			https://github.com/rohillanishant/DSA-Cpp/blob/master/LinkedList/DoublyLinkedList.cpp
3	Reverse of Linked List	n	1
4	Middle of Linked List	n	1	https://github.com/rohillanishant/DSA-Cpp/blob/master/LinkedList/MiddleElement.cpp
5	Reverse Nodes in K-Groups (25)	n	1	https://leetcode.com/problems/reverse-nodes-in-k-group/
6	Reverse Nodes in Even length Groups (2074)	n	1	https://leetcode.com/problems/reverse-nodes-in-even-length-groups/description/
	(Not in supreme,but same as above)
7	Detect Loop Start Point (142)	n	1	https://leetcode.com/problems/linked-list-cycle-ii/
8	Palindrome Linked List (234)	n	1	https://leetcode.com/problems/palindrome-linked-list/description/
9	Remove Duplicates from Sorted List (83)	n	1	https://leetcode.com/problems/remove-duplicates-from-sorted-list/description/
10	Remove Duplicates from UnSorted List	n	1	https://practice.geeksforgeeks.org/problems/remove-duplicates-from-an-unsorted-linked-list/1?utm_source=gfg&utm_medium=article&utm_campaign=bottom_sticky_on_article
11	Sort 0's 1's and 2's in linked list	n	1	https://practice.geeksforgeeks.org/problems/given-a-linked-list-of-0s-1s-and-2s-sort-it/1
12	Add two numbers (Reverse) (2)	n	1	https://leetcode.com/problems/add-two-numbers/
13	Add two numbers	n	1	https://practice.geeksforgeeks.org/problems/add-two-numbers-represented-by-linked-lists/1?utm_source=gfg&utm_medium=article&utm_campaign=bottom_sticky_on_article
1	Print/Remove Nth Node from End (19)	n	1	https://leetcode.com/problems/remove-nth-node-from-end-of-list/description/
2	Intersection of two linked lists (160)	n	1	https://leetcode.com/problems/intersection-of-two-linked-lists/submissions/
3	Merge two Sorted Lists (21)	n	1	https://leetcode.com/problems/merge-two-sorted-lists/
4	Sort List (148)	nlogn	n	https://leetcode.com/problems/sort-list/description/
5	Flattening a Linked List	n	1	https://www.geeksforgeeks.org/problems/flattening-a-linked-list/1
6	Copy List with Random Pointer (138)	n	1	https://leetcode.com/problems/copy-list-with-random-pointer/description/
7	Rotate List (61)	n	1	https://leetcode.com/problems/rotate-list/
8	Delete N nodes after M nodes in a list	n	n	https://www.geeksforgeeks.org/problems/delete-n-nodes-after-m-nodes-of-a-linked-list/1
9	Find Min & Max  Nodes Between   Critical Points (2058)	n	1	https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points/
10	Merge Nodes in Between Zeros (2181)	n	1	https://leetcode.com/problems/merge-nodes-in-between-zeros/description/
Stack
1	Stack			https://github.com/rohillanishant/DSA-Cpp/blob/master/Stack/Stack.cpp
2	Stack Using Array			https://github.com/rohillanishant/DSA-Cpp/blob/master/Stack/StackUsingArray.cpp
3	Stack Using Linked List			https://github.com/rohillanishant/DSA-Cpp/blob/master/Stack/StackUsingLinkedList.cpp
4	Double Stack Using Array			https://github.com/rohillanishant/DSA-Cpp/blob/master/Stack/DoubleStackUsingArray.cpp
5	Reverse String	n	n	https://github.com/rohillanishant/DSA-Cpp/blob/master/Stack/ReverseString.cpp
6	Middle Element in Stack	n	n	https://github.com/rohillanishant/DSA-Cpp/blob/master/Stack/MiddleElement.cpp
7	Insert top element at bottom	n	n	https://github.com/rohillanishant/DSA-Cpp/blob/master/Stack/InsertAtBottom.cpp
8	Reverse Stack	n^2	n	https://github.com/rohillanishant/DSA-Cpp/blob/master/Stack/Reverse.cpp
9	Valid Paranthesis (20)	n	n	https://leetcode.com/problems/valid-parentheses/description/
10	Sort Stack	n^2	n	https://github.com/rohillanishant/DSA-Cpp/blob/master/Stack/Sort.cpp
11	Check Redundant Brackets	n	n	https://www.codingninjas.com/studio/problems/redundant-brackets_975473
12	Min Stack (155)	1	1	https://leetcode.com/problems/min-stack/
13	Longest Valid Parentheses	n	n	https://leetcode.com/problems/longest-valid-parentheses/description/
14	Next Smaller Element	n	n	https://github.com/rohillanishant/DSA-Cpp/blob/master/Stack/NextSmallerElement.cpp
15	Previous Smaller Element	n	n	https://github.com/rohillanishant/DSA-Cpp/blob/master/Stack/PreviousSmallerElement.cpp
16	Largest Rectangle in Histogram (84)	n	n	https://leetcode.com/problems/largest-rectangle-in-histogram/
1	Remove All Adjacent Duplicates In String (1047)	n	n	https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string/description/
2	Minimum Bracket Reversal / Count the Reversals	n	n	https://www.geeksforgeeks.org/problems/count-the-reversals0401/1
3	Next Greater Element in LL (1019)	n	n	https://leetcode.com/problems/next-greater-node-in-linked-list/description/
4	Celebrity Problem	n	n	https://www.geeksforgeeks.org/problems/the-celebrity-problem/1
5	N stacks  in an array	n	n	https://www.codingninjas.com/studio/problems/n-stacks-in-an-array_1164271?leftPanelTabValue=PROBLEM
6	Online Stock Span (901)	n	n	https://leetcode.com/problems/online-stock-span/description/
7	Simplify Path (71)	n	n	https://leetcode.com/problems/simplify-path/
8	Check If Word Is Valid After Substitutions	n	n	https://leetcode.com/problems/check-if-word-is-valid-after-substitutions/description/
9	Decode String (394)	n+k	n	https://leetcode.com/problems/decode-string/
10	Maximal Rectangle (85)	m*n	m*n	https://leetcode.com/problems/maximal-rectangle/
11	Car Fleet (853)	nlogn	n	https://leetcode.com/problems/car-fleet/
12	Car Fleet II  (1776)	n	n	https://leetcode.com/problems/car-fleet-ii/
Queue
1	Queue			https://github.com/rohillanishant/DSA-Cpp/blob/master/Queue/Queue.cpp
2	Queue using Array			https://github.com/rohillanishant/DSA-Cpp/blob/master/Queue/QueueUsingArray.cpp
3	Circular Queue			https://github.com/rohillanishant/DSA-Cpp/blob/master/Queue/CircularQueue.cpp
4	Doubly Ended Queue			https://github.com/rohillanishant/DSA-Cpp/blob/master/Queue/DoublyEndedQueue.cpp
5	Reverse Queue	n	1	https://github.com/rohillanishant/DSA-Cpp/blob/master/Queue/ReverseQueue.cpp
6	Reverse first k elements of queue	n	n	https://www.geeksforgeeks.org/problems/reverse-first-k-elements-of-queue/1?itm_source=geeksforgeeks&itm_medium=article&itm_campaign=practice_card
7	Interleave first & second half of Queue	n	n	https://github.com/rohillanishant/DSA-Cpp/blob/master/Queue/InterleaveFirst_SecondHalfQueue.cpp
8	First negative in every window   of size k	n	k	https://www.geeksforgeeks.org/problems/first-negative-integer-in-every-window-of-size-k3345/1
9	First non-repeating character in a stream	n	n	https://www.geeksforgeeks.org/problems/first-non-repeating-character-in-a-stream1216/1
10	Gas Station (134)	n	1	https://leetcode.com/problems/gas-station/
11	Sliding Window Maximum	n	k	https://leetcode.com/problems/sliding-window-maximum/
1	Implement Queue using Stacks			https://leetcode.com/problems/implement-queue-using-stacks/
2	Implement Stack using Queues			https://leetcode.com/problems/implement-stack-using-queues/
3	K Queues in an Array			https://github.com/rohillanishant/DSA-Cpp/blob/master/Queue/KQueuesInArray.cpp
4	Sum of Min & Max elements of all subarray of size k	n	n	https://github.com/rohillanishant/DSA-Cpp/blob/master/Queue/SumMinMaxKSubarray.cpp
Tree
1	Tree	n	n	https://github.com/rohillanishant/DSA-Cpp/blob/master/Tree/tree.cpp
2	Level Order Traversal	n	n	https://github.com/rohillanishant/DSA-Cpp/blob/master/Tree/LevelOrderTraversal.cpp
3	Binary Tree Inorder Traversal (94)	n	n	https://leetcode.com/problems/binary-tree-inorder-traversal/description/
4	Binary Tree Preorder Traversal (144)			https://leetcode.com/problems/binary-tree-preorder-traversal/description/
5	Binary Tree Postorder Traversal (145)			https://leetcode.com/problems/binary-tree-postorder-traversal/description/
6	Maximum Depth of Binary Tree (104)			https://leetcode.com/problems/maximum-depth-of-binary-tree/description/
7	Diameter of Binary Tree (543)			https://leetcode.com/problems/diameter-of-binary-tree/description/
8	Same Tree (100)			https://leetcode.com/problems/same-tree/description/
9	Two Mirror Trees			https://www.geeksforgeeks.org/problems/two-mirror-trees/1
10	Balanced Binary Tree (110)	n	n	https://leetcode.com/problems/balanced-binary-tree/description/
11	Lowest Common Ancestor (236)			https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree/description/
12	Kth Ancestor			https://www.geeksforgeeks.org/problems/kth-ancestor-in-a-tree/1
13	Path Sum II (113)			https://leetcode.com/problems/path-sum-ii/description/
14	Construct Binary Tree from Preorder & Inorder (105)			https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/description/
15	Construct Binary Tree from Postorder & Inorder (106)			https://leetcode.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal/description/
16	Top View of Binary Tree			https://www.geeksforgeeks.org/problems/top-view-of-binary-tree/1
17	Bottom View of Binary Tree			https://www.geeksforgeeks.org/problems/bottom-view-of-binary-tree/1
18	Left View of Binary Tree			https://www.geeksforgeeks.org/problems/left-view-of-binary-tree/1
19	Right View of Binary Tree (199)			https://leetcode.com/problems/binary-tree-right-side-view/description/
20	Tree Boundary Traversal			https://www.geeksforgeeks.org/problems/boundary-traversal-of-binary-tree/1