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Jagannath8/Problem-Of-The-Day-GFG

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Problem Of The Day (POTD) GFG

S.No Question Date
01. Maximum Sub Array November 28
02. Count the Number of Full Binary Trees November 29
03. Reorder List November 30
04. Rearrange Array Alternately December 01
05. if it is possible to convert one string into another with given constraints December 02
06. Aggressive Cows December 03
07. Alternate Vowel and Consonant String December 04
08. Shortest Path by Removing K walls December 05
09. Distance of nearest cell having 1 December 06
10. k-th smallest element in BST December 07
11. 3 Divisors December 08
12. Black and White December 09
13. Build the smallest December 10
14. Array Pair Sum Divisibility Problem December 11
15. Subarray with given sum December 12
16. Split Array Largest Sum December 13
17. Complement December 14
18. Balanced string December 15
19. 2D Hopscotch December 16
20. Break a number December 17
21. A Game of LCM December 18
22. Alex Travelling December 19
23. A difference of values and indexes December 20
24. Absolute List Sorting December 21
25. Zero Sum Subarrays December 22
26. Burst Balloons December 23
27. Wine Buying and Selling December 24
28. Missing number in matrix December 25
29. Akku and Binary Numbers December 26
30. Container With Most December 27
31. Largest subtree sum in a tree December 28
32. Asteroid Collision December 29
33. Single valued subtree December 30
34. Find minimum number of Laptops required December 31
35. Count even length January 01
36. Maximum Value January 02
37. Minimize number of Students to be removed January 03
38. Maximum Profit By Choosing A Subset Of Intervals January 04
39. Find the longest string January 05
40. Shortest Prime Path January 06
41. Flattening a Linked List January 07
42. Absolute difference divisible by K January 08
43. Last modified ball January 09
44. Transform to Sum Tree January 10
45. Make array elements unique January 11
46. Minimize the sum January 12
47. Count Lucky Permutations January 13
48. Maximum Number of Toys January 14
49. Count the Substring January 15
50. Next Greater Element January 16
51. Find the maximum GCD of the siblings of a Binary Tree January 17
52. Find the first node of loop in linked list January 18
53. Carpet into Box January 19
54. Maximum Weight Node January 20
55. Minimum X (xor) A January 21
56. GCD Array January 22
57. Geeks And The String January 23
58. Convert an array to reduced form January 24
59. Type it! January 25
60. Case-specific Sorting of Strings January 26
61. Total Decoding Messages January 27
62. Scrambled String January 28
63. Min operations January 29
64. Select Nodes January 30
65. Minimum times A has to be repeated such that B is a substring of it January 31
66. Distinct Coloring February 01
67. Largest Sum Cycle February 02
68. Last cell in a Matrix February 03
69. Max Sum without Adjacents February 04
70. Intersection Point in Y Shaped Linked Lists February 05
71. BST Downward Traversal February 06
72. Length of the longest subarray with positive product February 07
73. Count number of free cell February 08
74. Maximum Bipartite Matching February 09
75. Balloon Everywhere February 10
76. Minimum Days February 11
77. Prime List February 12
78. Arithmetic Number February 13
79. Walls Coloring February 14
80. Geeks Island February 15
81. Good Stones February 16
82. Is it Fibonacci February 17
83. Apple Sequences February 18
84. Fixing Two swapped nodes of a BST February 19
85. Count Cyclic Paths February 20
86. Fill the Matrix February 21
87. Connect Nodes at Same Level February 22
88. Unique Paths in a Grid February 23
89. Shortest Path Using Atmost One Curved Edge February 24
90. Valid Compressed String February 25
91. Number of Good Components February 26
92. Reverse both parts February 27
93. Optimal Array February 28
94. Update Queries March 01
95. Walls Coloring II March 02
96. Cutting Rectangles March 03
97. Best Node March 04
98. Avoid Explosion March 05
99. Geek hates too many 1s March 06
100. Max Level Sum in Binary Tree March 07
101. Max min Height March 08
102. Find anagrams in linked list March 09
103. Maximum Triplet product March 10
104. Yet another query problem March 11
105. Binary matrix having maximum number of 1s March 12
106. Maximum Possible Value March 13
107. Maximum Number of coins March 14
108. Special Palindrome Substrings March 15
109. Second smallest number March 16
110. Number of Subarrays of 0's March 17
111. Median of the Subarrays March 18
112. Distinct Difference March 19
113. Shortest XY distance in Grid March 20
114. Taxi Booking March 21
115. String rp or pr March 22
116. BST Maximum Difference March 23
117. Remove and Reverse March 24
118. Redundant Parenthesis March 25
119. Frogs and Jumps March 26
120. Divide in Incremental Groups March 27
121. Shy Geek March 28
122. Count the Substrings March 29
123. Minimum Integer March 30
124. Even Swap March 31
125. Make Array Elements Equal April 01
126. Knight in Geekland April 02
127. Remainder on dividing by 11 April 03
128. Minimum Steps Required April 04
129. Count Special Numbers April 05
130. Equal Left and Right Subarray Sum April 06
131. Add Minimum Characters April 07
132. Make the array beautiful April 08
133. Special Digits April 09
134. Maximum Intersecting Lines April 10
135. Maximum Length April 11
136. Dominant Pairs April 12
137. Partition the Array April 13
138. Remove the balls April 14
139. Find Total Time Taken April 15
140. Unequal Arrays April 16
141. Job Sequencing Problem April 17
142. Minimum BST Sum Subtree April 18
143. Wifi Range April 19
144. Bheem Wants Ladoos April 20
145. Prefix Suffix String April 21
146. Smaller Sum April 22
147. Minimum Number April 23
148. Nearest smaller tower April 24
149. Game Of Subsets April 25
150. Seating Arrangement April 26
151. Easy Task April 27
152. Geek's Village and Wells April 28
153. Find Number April 29
154. Powerfull Integer April 30
155. Subtree In N-ary Tree May 01
156. Cake Distribution Problem May 02
157. Make Palindrome May 03
158. Max Coins May 04
159. Good Subtrees May 05
160. Another Coin Change Problem May 06
161. String Mirror May 07
162. Binary Modulo May 08
163. Count Binary Strings With No Consecutive 1s May 09
164. Total Cuts May 10
165. Palindrome with minimum sum May 11
166. Array Operations May 12
167. Bit Magic May 13
168. Maximum subset sum May 14
169. Count Total Setbits May 15
170. Cutting Binary String May 16
171. Trace Path May 17
172. Find number of closed islands May 18
173. Find k-th smallest element in given n ranges May 19
174. Hands of Straights May 20
175. Bus Conductor May 21
176. Tree Transformation May 22
177. Construct a Full Binary Tree May 23
178. Maximum Identical Bowls May 24
179. Expression Add Operators May 25
180. Express as sum of power of natural numbers May 26
181. Modify Linked List-1 May 27
182. Nth node from end of linked list May 28
183. CamelCase Pattern Matching May 29
184. Word Search May 30
185. Frequency Game May 31
186. Topological sort June 01
187. Santa Banta June 02
188. Find Maximum Equal sum of Three Stacks June 03
189. Reversing the equation June 04
190. Find the Closest Element in BST June 05
191. Predecessor and Successor June 06
192. Least Prime Factor June 07
193. Find Kth permutation June 08
194. Permutations of a given string June 09
195. Arranging the array June 10
196. Adding Ones June 11
197. Rod Cutting June 12
198. k largest elements June 13
199. Maximum Diamonds June 14
200. Longest Palindrome in a String June 15
201. Min Time June 16
202. Queue Operations June 17
203. Ticket Counter June 18
204. Rearrange an array with O(1) extra space June 19
205. Matchsticks game June 20
206. Reverse Coding June 21
207. Lemonade Change June 22
208. Task Scheduler June 23
209. Prefix match with other strings June 24
210. Unique rows in boolean matrix June 25
211. nCr June 26
212. Union of Two Linked Lists June 27
213. Maximum Depth Of Binary Tree June 28
214. Next Happy Number June 29
215. Is Binary Number Multiple of 3 June 30
216. Number of 1 Bits July 01
217. Copy Set Bits in Range July 02
218. Maximum Index July 03
219. Count the subarrays having product less than k July 04
220. Stock buy and sell II July 05
221. Quick Sort July 06
222. Merge Without Extra Space July 07
223. Find triplets with zero sum July 08
224. Smallest Positive missing number July 09
225. Transpose of Matrix July 10
226. Find kth element of spiral matrix July 11
227. Power Of Numbers July 12
228. Unique Number of Occurrences July 13
229. Implement two stacks in an array July 14
230. Delete middle element of a stack July 15
231. Queue Reversal July 16
232. First non-repeating character in a stream July 17
233. Longest Repeating Subsequence July 18
234. Longest Palindromic Subsequence July 19
235. Non Repeating Character July 20
236. Reverse a Linked List in groups of given size July 21
237. Remove duplicates from an unsorted linked list July 22
238. Given a linked list of 0s, 1s and 2s, sort it July 23
239. Right View of Binary Tree July 24
240. Level order traversal in spiral form July 25
241. Kth Ancestor in a Tree July 26
242. Heap Sort July 27
243. Lowest Common Ancestor in a BST July 28
244. Median of BST July 29
245. Inorder Successor in BST July 30
246. BFS of graph July 31
247. DFS of Graph August 01
248. Shortest Source to Destination Path August 02
249. Shortest path in Directed Acyclic Graph August 03
250. Reverse a Stack August 04
251. Chocolate Distribution Problem August 05
252. String Permutations August 06
253. Solve the Sudoku August 07
254. Fraction pairs with sum 1 August 08
255. Largest prime factor August 09
256. Longest Common Subsequence August 10
257. Coin Change August 11
258. Longest Increasing Subsequence August 12
259. Nth Fibonacci Number August 13
260. Non Repeating Numbers August 14
261. Flip Bits August 15
262. Nth catalan number August 16
263. Next Smallest Palindrome August 17
264. Leaders in an array August 18
265. Subarray with given sum August 19
266. Number of occurrence August 20
267. Surround the 1's August 21
268. Make Matrix Beautiful August 22
269. Find the string in grid August 23
270. Multiply two strings August 24
271. Palindrome String August 25
272. Longest K unique characters substring August 26
273. Reverse a String August 27
274. Remove duplicate element from sorted Linked List August 28
275. Delete nodes having greater value on right August 29
276. Delete a Node in Single Linked List August 30
277. AVL Tree Deletion August 31
278. Leftmost and rightmost nodes of binary tree September 01
279. Leaf under budget September 02
280. Check if Tree is Isomorphic September 03
281. Replace O's with X's September 04
282. Print adjacency list September 05
283. Mother Vertex September 06
284. Minimum Multiplications to reach End September 07
285. Binary Tree to BST September 08
286. Kth largest element in BST September 09
287. Insert a node in a BST September 10
288. Lucky Numbers September 11
289. Perfect Numbers September 12
290. Largest number possible September 13
291. Perfect Sum Problem September 14
292. Partition Equal Subset Sum September 15
293. Count number of hops September 16
294. Print first n Fibonacci Numbers September 17
295. Power of 2 September 18
296. Find first set bit September 19
297. Rotate Bits September 20
298. Stickler Thief September 21
299. First and last occurrences of x September 22
300. Equilibrium Point September 23
301. Find duplicates in an array September 24
302. Maximum Sum Combination September 25
303. Find All Four Sum Numbers September 26
304. Find the closest pair from two arrays September 27
305. Wave Array September 28
306. Number Of Enclaves September 29
307. Boolean Matrix September 30
308. Boundary traversal of matrix October 01
309. Number of distinct subsequences October 02
310. Column name from a given column number October 03
311. Roman Number to Integer October 04
312. Count number of substrings October 05
313. Reverse alternate nodes in Link List October 06
314. Pairwise swap elements of a linked list October 07
315. Insert in a Sorted List October 08
316. Height of Binary Tree October 09
317. Nodes at given distance in binary tree October 10
318. Check for Balanced Tree October 11
319. Duplicate subtree in Binary Tree October 12
320. Floor in BST October 13
321. Find Common Nodes in two BSTs October 14
322. Normal BST to Balanced BST October 15
323. Making A Large Island October 16
324. Transitive closure of a Graph October 17
325. Eventual Safe States October 18
326. Level of Nodes October 19
327. Form a number divisible by 3 using array digits October 20
328. Sum of all divisors from 1 to n October 21
329. Number of paths October 22
330. Maximum sum increasing subsequence October 23
331. Palindromic Partitioning October 24
332. Knapsack with Duplicate Items October 25
333. Minimum Operations October 26
334. Minimum Deletions October 27
335. Bleak Numbers October 28
336. Check whether K-th bit is set or not October 29
337. Sum of XOR of all pairs October 30
338. Move all zeroes to end of array October 31
339. Frequencies of Limited Range Array Elements November 01
340. Minimum distance between two numbers November 02
341. Pythagorean Triplet November 03
342. Find Transition Point November 04
343. Top K Frequent Elements in Array November 05
344. Letters Collection November 06
345. Sum of upper and lower triangles November 07
346. Print Matrix in snake Pattern November 08
347. Predict the Column November 09
348. Number following a pattern November 10
349. Isomorphic Strings November 11
350. Check if string is rotated by two places November 12
351. Shortest Common Supersequence November 13
352. Check if strings are rotations of each other or not November 14
353. Better String November 15
354. Find the String November 16
355. Binary Tree to CDLL November 17
356. Reverse a Doubly Linked List November 18
357. Intersection of two sorted Linked lists November 19
358. K Sum Paths November 20
359. Determine if Two Trees are Identical November 21
360. Symmetric Tree November 22
361. AVL Tree Insertion November 23
362. Pascal Triangle November 24
363. Shuffle integers November 25
364. Print Pattern November 26
365. Detect Cycle using DSU November 27
366. Sum of dependencies in a graph November 28
367. Euler circuit and Path November 29
368. Shortest path from 1 to n November 30
369. Check whether BST contains Dead End December 01
370. Inorder Traversal and BST December 02
371. Brothers From Different Roots December 03
372. Sum-string December 04
373. Minimize the Heights II December 05
374. How Many X's? December 06
375. Number of subarrays with maximum values in given range December 07
376. Transform to prime December 08
377. Smith Number December 09
378. Subarray with 0 sum December 10
379. Max Sum Subarray of size K December 11
380. Gold Mine Problem December 12
381. Consecutive 1's not allowed December 13
382. Painting the Fence December 14
383. Reach the Nth point December 15
384. String's Count December 16
385. Max Sum without Adjacents December 17
386. Game of XOR December 18
387. Rightmost different bit December 19
388. Modified Game of Nim December 20
389. Candy December 21
390. Maximum Meetings in One Room December 22
391. Count More than n/k Occurences December 23
392. Buy Maximum Stocks if i stocks can be bought on i-th day December 24
393. Determinant of a Matrix December 25
394. Largest rectangular sub-matrix whose sum is 0 December 26
395. Anti Diagonal Traversal of Matrix December 27
396. Wildcard string matching December 28
397. Check if a string is repetition of its substring of k-length December 29
398. Winner of an election December 30
399. New Year Resolution December 31

Languages

Java100.0%

Contributors

JA
Created November 29, 2022
Updated June 10, 2025
Jagannath8/Problem-Of-The-Day-GFG | GitHunt