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Hard

Problems with tag Hard

783 found, showing 30 to 60

2

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Build a Matrix With Conditions ->

Hard, #2392, 2 solutions

Build Binary Expression Tree From Infix Expression ->

Hard, #1597, 2 solutions

Building Boxes ->

Hard, #1739, 3 solutions

Build Array Where You Can Find The Maximum Exactly K Comparisons ->

Hard, #1420, 2 solutions

Bricks Falling When Hit ->

Hard, #803, 3 solutions

Burst Balloons ->

Hard, #312, 5 solutions

Build the Equation ->

Hard, #2118, 1 solutions

Building H2O ->

Medium, #1117, 2 solutions

Building Outline ->

Hard, #131, 2 solutions

Calculate Trapping Rain Water ->

Hard, #3061, 1 solutions

Cat and Mouse II ->

Hard, #1728, 2 solutions

Cat and Mouse ->

Hard, #913, 3 solutions

Chalkboard XOR Game ->

Hard, #810, 2 solutions

Bus Routes ->

Hard, #815, 3 solutions

Candy ->

Hard, #135, 5 solutions

Check If It Is a Good Array ->

Hard, #1250, 2 solutions

Car Fleet II ->

Hard, #1776, 2 solutions

Check If String Is Transformable With Substring Sort Operations ->

Hard, #1585, 2 solutions

Check if There Is a Valid Parentheses String Path ->

Hard, #2267, 2 solutions

Check if an Original String Exists Given Two Encoded Strings ->

Hard, #2060, 2 solutions

Checking Existence of Edge Length Limited Paths ->

Hard, #1697, 2 solutions

Check for Contradictions in Equations ->

Hard, #2307, 2 solutions

Cherry Pickup ->

Hard, #741, 3 solutions

Choose Numbers From Two Arrays in Range ->

Hard, #2143, 2 solutions

Check if Point Is Reachable ->

Hard, #2543, 2 solutions

Checking Existence of Edge Length Limited Paths II ->

Hard, #1724, 2 solutions

Closest Nodes Queries in a Binary Search Tree ->

Medium, #2476, 2 solutions

Closest Binary Search Tree Value II ->

Hard, #272, 2 solutions

Closest Node to Path in Tree ->

Hard, #2277, 2 solutions

Cherry Pickup II ->

Hard, #1463, 3 solutions