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Greedy

Locally-optimal choices that win globally.

5 stops · 79 problems0/69 on the path done
next ▸ Activity SelectionSilver · 1100
1

Interval scheduling

0/12you are here

Meetings, platforms, arrows, clip cover.

○Activity Selection○Minimum Arrows○Max Attendable Meetings○Minimum Number of Arrows to Burst Balloons○Non-overlapping Intervals○Maximum Number of Events○Video Stitching○Minimum Number of Taps to Water a Garden○Fewest Railway Platforms○Burst Balloons Arrows○Min Clips Cover Range○Smallest Range Covering Elements
2

Exchange & sort

0/14

Sort-then-greedy and monotonic-stack picks.

○Monotone Increasing Digits○Maximum Swap○Two City Scheduling○Largest Triangle Perimeter○Max Chunks To Sort○Assign Mice To Holes○Smallest Subsequence of Distinct Characters○Queue Reconstruction By Height○Two City Travel Cost○Maximize Sum After Negations○Largest Concatenated Number○Remove K Digits Smallest○Queue Reconstruct By Height○Remove Duplicate Letters
3

Allocation

0/15

Coins, units, boats, ropes, fuel, jumps.

○Assign Cookies○Jump Game○Coin Change (Minimum Coins)○Maximum Units on a Truck○Boats To Save People○Max Ice Cream Bars○Canonical Coin Change○Max Units On Truck○Jump Game II○Rescue Boats Two Seats○Gas Station○Jump Game Minimum Jumps○Splice Ropes Cheapest○Min Refuel Stops○Minimum Refueling Stops
4

Counting & parity

0/12

Flips, increments, chunks, balanced splits.

○Minimum Add to Make Parentheses Valid○Maximize Sum After K Negations○Minimum Deletions for Unique Frequencies○Minimum Operations to Non-Decreasing○Split Balanced RL Strings○Min Flips Alternating Bits○Min Parentheses Additions○Wiggle Subsequence○Minimum Insertions to Balance Parentheses○Score After Flipping Matrix○Min Increments Strictly Increasing○Min Deletions Distinct Frequencies
5

More Greedy

0/16 of 26

Everything else that yields to a greedy.

○Eliminate Maximum Number of Monsters○Best Time to Buy and Sell Stock○Car Pooling○Reduce Array Size To Half○Lemonade Change○Best Time to Buy and Sell Stock II○Maximum Length Of Pair Chain○Most Profit Assigning Work○Best Trades Profit○Move Chips Min Cost○Hand Of Straights○Minimum Swaps to Group All 1's○Lemonade Stand Change○Partition Labels○Bag of Tokens○Broken Calculator+10 in the arena
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