Set 19
Mixed Practice Contest — Round A
Seven problems, ramping from Very Easy to Extreme.
Progress · 0/7 solved
- VERY EASYQ1Ticket Number (warm-up)
- EASYQ2Minimum Deletions to Make Frequency Unique
- MEDIUMQ3Smallest Window Containing All Characters of Pattern
- MEDIUM-HARDQ4Maximum Product Subarray
- HARDQ5K Closest Points to Origin, then Path Feasibility
- VERY HARDQ6Sliding Window Maximum, With Sum-of-Maximums Twist
- EXTREMEQ7Trapping Rain Water in 2D (advanced grid + priority queue)