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
40 of 1948
Recursion & Backtracking
0 of 40- Not tried201Factorial by RecursionFoundationno data
- Not tried202Sum to NFoundationno data
- Not tried203CountdownFoundationno data
- Not tried204PowerFoundationno data
- Not tried205Count the Digits by RecursionFoundationno data
- Not tried206Sum of Digits by RecursionFoundationno data
- Not tried207Reverse a Number by RecursionFoundationno data
- Not tried208Greatest Common Divisor by RecursionFoundationno data
- Not tried209FibonacciCoreno data
- Not tried210Sum an ArrayFoundationno data
- Not tried211Largest in an ArrayFoundationno data
- Not tried212Palindrome Number by RecursionFoundationno data
- Not tried213Count a DigitFoundationno data
- Not tried214Multiply Without MultiplyingFoundationno data
- Not tried215Towers of HanoiCoreno data
- Not tried216Binary Search by RecursionCoreno data
- Not tried217Reverse a String by RecursionFoundationno data
- Not tried218Palindrome String by RecursionFoundationno data
- Not tried219How Many SubsetsCoreno data
- Not tried220Climbing StairsCoreno data
- Not tried221Collatz StepsCoreno data
- Not tried222Power With a ModulusChallengeno data
- Not tried223Paths Through a GridChallengeno data
- Not tried224The Josephus RecurrenceChallengeno data
- Not tried225Decimal to BinaryFoundationno data
- Not tried226Count the VowelsFoundationno data
- Not tried227How Many OrderingsCoreno data
- Not tried228N QueensChallengeno data
- Not tried229Does a Subset Add UpChallengeno data
- Not tried230Balanced Bracket StringsChallengeno data
- Not tried231Ways to Make an AmountChallengeno data
- Not tried232Paths Through a MazeChallengeno data
- Not tried233A Row of Pascal’s TriangleCoreno data
- Not tried234Tiling With DominoesCoreno data
- Not tried235Strings With No Two Ones TogetherCoreno data
- Not tried236What Fits in the BagChallengeno data
- Not tried237Longest Common SubsequenceChallengeno data
- Not tried238A Function That Grows Too FastChallengeno data
- Not tried239Sum a Nested ListCoreno data
- Not tried240Print the Digits ForwardsCoreno data