Practice Problems

Problem of the Day: Integer Square Root — keep your streak alive!

Practice Problems — sorting

#ProblemTopicsDifficulty
84 Sort the Words strings sorting 900
111 K-th Smallest sorting 1000
112 Lower Median sorting 1000
113 Evens First, Order Kept implementation sorting 1000
184 Closest Two Values greedy sorting 1000
272 Same Multiset sorting 1000
301 Order by Last Digit sorting 1000
302 Shortest Words First strings sorting 1000
480 Sort the Flag sorting two-pointers 1000
114 Sort by Absolute Value sorting 1100
118 Widest Gap sorting 1100
258 Top K Values heap sorting 1100
299 Order by Digit Sum sorting 1100
300 Order by Set Bits sorting 1100
359 Login Streak sorting 1100
189 Content Children greedy sorting 1200
486 One Meeting Room intervals sorting 1200
661 Make Everyone Equal math sorting 1200
117 Rank Transform sorting 1300
124 One Swap Away implementation sorting 1300
192 First Value At Least X binary-search sorting 1300
261 K Most Frequent heap sorting 1300
274 Cover the Demands greedy sorting 1300
326 Wave Arrangement sorting 1300
121 Best Product of Three math sorting 1400
125 Reverse One Segment implementation sorting 1400
136 Merged Interval Count intervals sorting 1400
137 Total Covered Length intervals sorting 1400
182 Best Pairing greedy sorting 1400
269 Best Dot Product greedy sorting 1400
270 Worst Dot Product greedy sorting 1400
418 Closest Pair Sum to Zero sorting two-pointers 1400
419 March to the Median math sorting 1400
483 K Nearest Values sorting two-pointers 1400
484 Merged Timeline intervals sorting 1400
108 Closest Pair Sum sorting two-pointers 1500
116 Minimum Swaps to Sort math sorting 1500
138 The Busiest Moment intervals sorting 1500
336 Three That Sum to T sorting two-pointers 1500
413 All the Gaps math sorting 1500
414 Sum of Pair Minimums math sorting 1500
415 Sum of Pair Maximums math sorting 1500
685 Minimize the Worst Delay greedy sorting 1500
115 Count the Inversions divide-and-conquer sorting 1600
183 Largest Concatenation greedy sorting 1600
190 Smallest Impossible Sum greedy sorting 1600
239 Schedule the Courses graphs sorting 1600
337 Zero Triplets sorting two-pointers 1600
481 Smaller Ones Before Me fenwick sorting 1700