Practice
1948 problems, in the order the course teaches them. Every one runs on a real compiler against real test cases.
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1. Print Hello World
Fundamentals · Foundation
0 / 1948
solved
26 of 1948
Stack
0 of 26- Not tried149Stack OperationsFoundationno data
- Not tried150Reverse a String With a StackFoundationno data
- Not tried151Balanced ParenthesesCoreno data
- Not tried152Balanced BracketsCoreno data
- Not tried153Redundant BracketsChallengeno data
- Not tried154Next Greater ElementChallengeno data
- Not tried155Next Smaller ElementCoreno data
- Not tried156Previous Greater ElementCoreno data
- Not tried157Stock SpanChallengeno data
- Not tried158Evaluate a Postfix ExpressionCoreno data
- Not tried159Evaluate a Prefix ExpressionCoreno data
- Not tried160Infix to PostfixChallengeno data
- Not tried161Sort a StackChallengeno data
- Not tried162Reverse a StackCoreno data
- Not tried163Delete the Middle of a StackCoreno data
- Not tried164Stack With a MinimumChallengeno data
- Not tried165Remove Adjacent DuplicatesCoreno data
- Not tried166Decode a Nested StringChallengeno data
- Not tried167Was This Pop Order Possible?Challengeno data
- Not tried168Asteroid CollisionChallengeno data
- Not tried169Largest Rectangle in a HistogramChallengeno data
- Not tried170Trapping Rain WaterChallengeno data
- Not tried171Longest Valid ParenthesesChallengeno data
- Not tried172Remove K DigitsChallengeno data
- Not tried173Simplify a File PathCoreno data
- Not tried174Two Stacks in One ArrayChallengeno data