| IBM |
Two Sum |
Easy |
4 |
0 - 3 months |
https://leetcode.com/problems/two-sum |
| IBM |
Longest Substring Without Repeating Characters |
Medium |
9 |
0 - 3 months |
https://leetcode.com/problems/longest-substring-without-repeating-characters |
| IBM |
Longest Palindromic Substring |
Medium |
7 |
6 months ago |
https://leetcode.com/problems/longest-palindromic-substring |
| IBM |
Reverse Integer |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/reverse-integer |
| IBM |
Integer to Roman |
Medium |
2 |
0 - 3 months |
https://leetcode.com/problems/integer-to-roman |
| IBM |
Roman to Integer |
Easy |
5 |
0 - 3 months |
https://leetcode.com/problems/roman-to-integer |
| IBM |
Longest Common Prefix |
Easy |
3 |
0 - 6 months |
https://leetcode.com/problems/longest-common-prefix |
| IBM |
3Sum |
Medium |
2 |
0 - 3 months |
https://leetcode.com/problems/3sum |
| IBM |
Letter Combinations of a Phone Number |
Medium |
5 |
6 months ago |
https://leetcode.com/problems/letter-combinations-of-a-phone-number |
| IBM |
Valid Parentheses |
Easy |
4 |
0 - 6 months |
https://leetcode.com/problems/valid-parentheses |
| IBM |
Find the Index of the First Occurrence in a String |
Easy |
2 |
6 months ago |
https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string |
| IBM |
Rotate Image |
Medium |
13 |
6 months ago |
https://leetcode.com/problems/rotate-image |
| IBM |
Group Anagrams |
Medium |
5 |
6 months ago |
https://leetcode.com/problems/group-anagrams |
| IBM |
N-Queens |
Hard |
2 |
6 months ago |
https://leetcode.com/problems/n-queens |
| IBM |
Maximum Subarray |
Medium |
4 |
6 months ago |
https://leetcode.com/problems/maximum-subarray |
| IBM |
Spiral Matrix |
Medium |
5 |
6 months ago |
https://leetcode.com/problems/spiral-matrix |
| IBM |
Merge Intervals |
Medium |
12 |
0 - 3 months |
https://leetcode.com/problems/merge-intervals |
| IBM |
Plus One |
Easy |
2 |
6 months ago |
https://leetcode.com/problems/plus-one |
| IBM |
Add Binary |
Easy |
2 |
6 months ago |
https://leetcode.com/problems/add-binary |
| IBM |
Climbing Stairs |
Easy |
4 |
6 months ago |
https://leetcode.com/problems/climbing-stairs |
| IBM |
Minimum Window Substring |
Hard |
4 |
0 - 3 months |
https://leetcode.com/problems/minimum-window-substring |
| IBM |
Subsets |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/subsets |
| IBM |
Word Search |
Medium |
2 |
0 - 6 months |
https://leetcode.com/problems/word-search |
| IBM |
Gray Code |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/gray-code |
| IBM |
Validate Binary Search Tree |
Medium |
3 |
6 months ago |
https://leetcode.com/problems/validate-binary-search-tree |
| IBM |
Best Time to Buy and Sell Stock |
Easy |
9 |
0 - 6 months |
https://leetcode.com/problems/best-time-to-buy-and-sell-stock |
| IBM |
Longest Consecutive Sequence |
Medium |
5 |
6 months ago |
https://leetcode.com/problems/longest-consecutive-sequence |
| IBM |
Gas Station |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/gas-station |
| IBM |
Candy |
Hard |
2 |
6 months ago |
https://leetcode.com/problems/candy |
| IBM |
Linked List Cycle |
Easy |
2 |
6 months ago |
https://leetcode.com/problems/linked-list-cycle |
| IBM |
Reverse Words in a String |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/reverse-words-in-a-string |
| IBM |
Find Minimum in Rotated Sorted Array |
Medium |
3 |
6 months ago |
https://leetcode.com/problems/find-minimum-in-rotated-sorted-array |
| IBM |
Majority Element |
Easy |
3 |
6 months ago |
https://leetcode.com/problems/majority-element |
| IBM |
Course Schedule II |
Medium |
3 |
6 months ago |
https://leetcode.com/problems/course-schedule-ii |
| IBM |
Contains Duplicate |
Easy |
2 |
6 months ago |
https://leetcode.com/problems/contains-duplicate |
| IBM |
Product of Array Except Self |
Medium |
4 |
6 months ago |
https://leetcode.com/problems/product-of-array-except-self |
| IBM |
Sliding Window Maximum |
Hard |
3 |
0 - 6 months |
https://leetcode.com/problems/sliding-window-maximum |
| IBM |
Valid Anagram |
Easy |
3 |
0 - 6 months |
https://leetcode.com/problems/valid-anagram |
| IBM |
Meeting Rooms II |
Medium |
2 |
0 - 6 months |
https://leetcode.com/problems/meeting-rooms-ii |
| IBM |
3Sum Smaller |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/3sum-smaller |
| IBM |
Missing Number |
Easy |
3 |
6 months ago |
https://leetcode.com/problems/missing-number |
| IBM |
Move Zeroes |
Easy |
3 |
6 months ago |
https://leetcode.com/problems/move-zeroes |
| IBM |
Find the Duplicate Number |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/find-the-duplicate-number |
| IBM |
Coin Change |
Medium |
2 |
0 - 6 months |
https://leetcode.com/problems/coin-change |
| IBM |
Intersection of Two Arrays |
Easy |
2 |
6 months ago |
https://leetcode.com/problems/intersection-of-two-arrays |
| IBM |
Intersection of Two Arrays II |
Easy |
2 |
6 months ago |
https://leetcode.com/problems/intersection-of-two-arrays-ii |
| IBM |
Fizz Buzz |
Easy |
4 |
0 - 3 months |
https://leetcode.com/problems/fizz-buzz |
| IBM |
String Compression |
Medium |
6 |
6 months ago |
https://leetcode.com/problems/string-compression |
| IBM |
Sort Characters By Frequency |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/sort-characters-by-frequency |
| IBM |
Minimum Moves to Equal Array Elements |
Medium |
12 |
6 months ago |
https://leetcode.com/problems/minimum-moves-to-equal-array-elements |
| IBM |
Heaters |
Medium |
2 |
0 - 6 months |
https://leetcode.com/problems/heaters |
| IBM |
Subarray Sum Equals K |
Medium |
4 |
6 months ago |
https://leetcode.com/problems/subarray-sum-equals-k |
| IBM |
Big Countries |
Easy |
2 |
6 months ago |
https://leetcode.com/problems/big-countries |
| IBM |
Exclusive Time of Functions |
Medium |
24 |
6 months ago |
https://leetcode.com/problems/exclusive-time-of-functions |
| IBM |
Valid Palindrome II |
Easy |
2 |
0 - 3 months |
https://leetcode.com/problems/valid-palindrome-ii |
| IBM |
Count Binary Substrings |
Easy |
8 |
6 months ago |
https://leetcode.com/problems/count-binary-substrings |
| IBM |
Degree of an Array |
Easy |
2 |
6 months ago |
https://leetcode.com/problems/degree-of-an-array |
| IBM |
Subarray Product Less Than K |
Medium |
4 |
6 months ago |
https://leetcode.com/problems/subarray-product-less-than-k |
| IBM |
Find Pivot Index |
Easy |
6 |
6 months ago |
https://leetcode.com/problems/find-pivot-index |
| IBM |
Reach a Number |
Medium |
8 |
0 - 3 months |
https://leetcode.com/problems/reach-a-number |
| IBM |
Reorganize String |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/reorganize-string |
| IBM |
Flipping an Image |
Easy |
3 |
6 months ago |
https://leetcode.com/problems/flipping-an-image |
| IBM |
Backspace String Compare |
Easy |
4 |
6 months ago |
https://leetcode.com/problems/backspace-string-compare |
| IBM |
Longest Mountain in Array |
Medium |
7 |
0 - 6 months |
https://leetcode.com/problems/longest-mountain-in-array |
| IBM |
Middle of the Linked List |
Easy |
2 |
6 months ago |
https://leetcode.com/problems/middle-of-the-linked-list |
| IBM |
Online Stock Span |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/online-stock-span |
| IBM |
Minimum Add to Make Parentheses Valid |
Medium |
2 |
0 - 6 months |
https://leetcode.com/problems/minimum-add-to-make-parentheses-valid |
| IBM |
Flip String to Monotone Increasing |
Medium |
3 |
6 months ago |
https://leetcode.com/problems/flip-string-to-monotone-increasing |
| IBM |
Max Consecutive Ones III |
Medium |
2 |
0 - 3 months |
https://leetcode.com/problems/max-consecutive-ones-iii |
| IBM |
Numbers With Repeated Digits |
Hard |
7 |
6 months ago |
https://leetcode.com/problems/numbers-with-repeated-digits |
| IBM |
Minimum Cost to Connect Sticks |
Medium |
2 |
0 - 6 months |
https://leetcode.com/problems/minimum-cost-to-connect-sticks |
| IBM |
Height Checker |
Easy |
4 |
6 months ago |
https://leetcode.com/problems/height-checker |
| IBM |
Grumpy Bookstore Owner |
Medium |
2 |
0 - 6 months |
https://leetcode.com/problems/grumpy-bookstore-owner |
| IBM |
Minimum Absolute Difference |
Easy |
14 |
6 months ago |
https://leetcode.com/problems/minimum-absolute-difference |
| IBM |
Get Equal Substrings Within Budget |
Medium |
2 |
0 - 6 months |
https://leetcode.com/problems/get-equal-substrings-within-budget |
| IBM |
Find the Smallest Divisor Given a Threshold |
Medium |
4 |
6 months ago |
https://leetcode.com/problems/find-the-smallest-divisor-given-a-threshold |
| IBM |
Number of Operations to Make Network Connected |
Medium |
3 |
0 - 6 months |
https://leetcode.com/problems/number-of-operations-to-make-network-connected |
| IBM |
Activity Participants |
Medium |
3 |
6 months ago |
https://leetcode.com/problems/activity-participants |
| IBM |
Minimum Value to Get Positive Step by Step Sum |
Easy |
2 |
6 months ago |
https://leetcode.com/problems/minimum-value-to-get-positive-step-by-step-sum |
| IBM |
Water Bottles |
Easy |
6 |
0 - 6 months |
https://leetcode.com/problems/water-bottles |
| IBM |
Kth Missing Positive Number |
Easy |
3 |
6 months ago |
https://leetcode.com/problems/kth-missing-positive-number |
| IBM |
Alert Using Same Key-Card Three or More Times in a One Hour Period |
Medium |
2 |
0 - 6 months |
https://leetcode.com/problems/alert-using-same-key-card-three-or-more-times-in-a-one-hour-period |
| IBM |
Maximum Units on a Truck |
Easy |
8 |
6 months ago |
https://leetcode.com/problems/maximum-units-on-a-truck |
| IBM |
Check if Array Is Sorted and Rotated |
Easy |
2 |
6 months ago |
https://leetcode.com/problems/check-if-array-is-sorted-and-rotated |
| IBM |
Merge Strings Alternately |
Easy |
4 |
6 months ago |
https://leetcode.com/problems/merge-strings-alternately |
| IBM |
Single-Threaded CPU |
Medium |
2 |
0 - 6 months |
https://leetcode.com/problems/single-threaded-cpu |
| IBM |
Minimum Number of Flips to Make the Binary String Alternating |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/minimum-number-of-flips-to-make-the-binary-string-alternating |
| IBM |
Remove All Occurrences of a Substring |
Medium |
3 |
6 months ago |
https://leetcode.com/problems/remove-all-occurrences-of-a-substring |
| IBM |
Minimum Time to Type Word Using Special Typewriter |
Easy |
3 |
6 months ago |
https://leetcode.com/problems/minimum-time-to-type-word-using-special-typewriter |
| IBM |
Remove Colored Pieces if Both Neighbors are the Same Color |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/remove-colored-pieces-if-both-neighbors-are-the-same-color |
| IBM |
Minimum Swaps to Group All 1's Together II |
Medium |
4 |
6 months ago |
https://leetcode.com/problems/minimum-swaps-to-group-all-1s-together-ii |
| IBM |
Largest Number After Digit Swaps by Parity |
Easy |
4 |
6 months ago |
https://leetcode.com/problems/largest-number-after-digit-swaps-by-parity |
| IBM |
Removing Stars From a String |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/removing-stars-from-a-string |
| IBM |
Optimal Partition of String |
Medium |
2 |
0 - 3 months |
https://leetcode.com/problems/optimal-partition-of-string |
| IBM |
Divide Intervals Into Minimum Number of Groups |
Medium |
3 |
6 months ago |
https://leetcode.com/problems/divide-intervals-into-minimum-number-of-groups |
| IBM |
The Employee That Worked on the Longest Task |
Easy |
3 |
6 months ago |
https://leetcode.com/problems/the-employee-that-worked-on-the-longest-task |
| IBM |
Average Value of Even Numbers That Are Divisible by Three |
Easy |
2 |
6 months ago |
https://leetcode.com/problems/average-value-of-even-numbers-that-are-divisible-by-three |
| IBM |
Odd String Difference |
Easy |
3 |
6 months ago |
https://leetcode.com/problems/odd-string-difference |
| IBM |
Maximum Sum of Distinct Subarrays With Length K |
Medium |
7 |
6 months ago |
https://leetcode.com/problems/maximum-sum-of-distinct-subarrays-with-length-k |
| IBM |
Count Pairs Of Similar Strings |
Easy |
5 |
6 months ago |
https://leetcode.com/problems/count-pairs-of-similar-strings |
| IBM |
Sort the Students by Their Kth Score |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/sort-the-students-by-their-kth-score |
| IBM |
Count Ways to Group Overlapping Ranges |
Medium |
18 |
6 months ago |
https://leetcode.com/problems/count-ways-to-group-overlapping-ranges |
| IBM |
Rearrange Array to Maximize Prefix Score |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/rearrange-array-to-maximize-prefix-score |
| IBM |
Smallest Missing Non-negative Integer After Operations |
Medium |
4 |
6 months ago |
https://leetcode.com/problems/smallest-missing-non-negative-integer-after-operations |
| IBM |
Count Vowel Strings in Ranges |
Medium |
10 |
6 months ago |
https://leetcode.com/problems/count-vowel-strings-in-ranges |
| IBM |
Find the Array Concatenation Value |
Easy |
2 |
6 months ago |
https://leetcode.com/problems/find-the-array-concatenation-value |
| IBM |
Minimum Operations to Make All Array Elements Equal |
Medium |
17 |
6 months ago |
https://leetcode.com/problems/minimum-operations-to-make-all-array-elements-equal |
| IBM |
Minimum String Length After Removing Substrings |
Easy |
5 |
6 months ago |
https://leetcode.com/problems/minimum-string-length-after-removing-substrings |
| IBM |
Lexicographically Smallest String After Substring Operation |
Medium |
6 |
6 months ago |
https://leetcode.com/problems/lexicographically-smallest-string-after-substring-operation |
| IBM |
Shortest and Lexicographically Smallest Beautiful String |
Medium |
5 |
6 months ago |
https://leetcode.com/problems/shortest-and-lexicographically-smallest-beautiful-string |
| IBM |
Minimum Number of Changes to Make Binary String Beautiful |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/minimum-number-of-changes-to-make-binary-string-beautiful |
| IBM |
Maximum Profitable Triplets With Increasing Prices I |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/maximum-profitable-triplets-with-increasing-prices-i |
| IBM |
Maximum Profitable Triplets With Increasing Prices II |
Hard |
2 |
6 months ago |
https://leetcode.com/problems/maximum-profitable-triplets-with-increasing-prices-ii |
| IBM |
Make Lexicographically Smallest Array by Swapping Elements |
Medium |
3 |
6 months ago |
https://leetcode.com/problems/make-lexicographically-smallest-array-by-swapping-elements |
| IBM |
Number of Divisible Substrings |
Medium |
5 |
6 months ago |
https://leetcode.com/problems/number-of-divisible-substrings |
| IBM |
Count the Number of Incremovable Subarrays II |
Hard |
10 |
6 months ago |
https://leetcode.com/problems/count-the-number-of-incremovable-subarrays-ii |
| IBM |
Number of Divisible Triplet Sums |
Medium |
6 |
6 months ago |
https://leetcode.com/problems/number-of-divisible-triplet-sums |
| IBM |
Type of Triangle |
Easy |
2 |
6 months ago |
https://leetcode.com/problems/type-of-triangle |
| IBM |
Minimum Levels to Gain More Points |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/minimum-levels-to-gain-more-points |
| IBM |
Taking Maximum Energy From the Mystic Dungeon |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/taking-maximum-energy-from-the-mystic-dungeon |
| IBM |
Minimum Operations to Make Median of Array Equal to K |
Medium |
3 |
6 months ago |
https://leetcode.com/problems/minimum-operations-to-make-median-of-array-equal-to-k |
| IBM |
Find All Possible Stable Binary Arrays II |
Hard |
2 |
6 months ago |
https://leetcode.com/problems/find-all-possible-stable-binary-arrays-ii |
| IBM |
Find Products of Elements of Big Array |
Hard |
2 |
6 months ago |
https://leetcode.com/problems/find-products-of-elements-of-big-array |
| IBM |
Find The First Player to win K Games in a Row |
Medium |
3 |
6 months ago |
https://leetcode.com/problems/find-the-first-player-to-win-k-games-in-a-row |
| IBM |
Find Occurrences of an Element in an Array |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/find-occurrences-of-an-element-in-an-array |
| IBM |
Find Longest Calls |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/find-longest-calls |
| IBM |
Minimum Length of String After Operations |
Medium |
2 |
6 months ago |
https://leetcode.com/problems/minimum-length-of-string-after-operations |
| IBM |
Report Spam Message |
Medium |
3 |
6 months ago |
https://leetcode.com/problems/report-spam-message |
| IBM |
Minimum Operations to Make Columns Strictly Increasing |
Easy |
10 |
6 months ago |
https://leetcode.com/problems/minimum-operations-to-make-columns-strictly-increasing |