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14
Task
Java Collections, level 4, lesson 2
Locked
Fibonacci numbers using recursion
Read about Fibonacci numbers. Implement a recursive fibonacci method, where n is the number of an element in the Fibonacci sequence. Don't create additional fields in the Solution class.
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Task
Java Collections, level 4, lesson 2
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Factorials using recursion
Read about how to calculate factorials. Implement a recursive factorial method, where n is the number whose factorial needs to be calculated. Don't create additional fields in the Solution class.
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Task
Java Collections, level 4, lesson 2
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Factorization using recursion
Separate the whole number n, where n > 1, into its prime factors. Display all of its factors in ascending order, separated by spaces. Write a recursive method to calculate the prime factors. Don't create additional fields in the Solution class.
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14
Task
Java Collections, level 4, lesson 2
Locked
Recursion for mathematical expressions
The input is a mathematical expression in the form of a String. The expression may include whole numbers, fractional numbers, parentheses (), spaces, negative signs -, exponents ^, sin(x), cos(x), and tan(x).
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14
Task
Java Collections, level 4, lesson 2
Locked
Tower of Hanoi
There are three rods. There are numRings rings stacked on rod A. Each ring has a different size and they're stacked from smallest to largest (largest on the bottom). You need to move the pyramid of numRings rings from rod A to rod B in as few moves as possible.