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Issue darpanjbora#1: Add Fibonacci Dynamic Programming
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/** | ||
* This is a algorithm to implement the Fibonacci Nth element problem | ||
* using dynamic programming paradigm. This version I am using the memoization | ||
* strategy to going top-down to find all needed values and store on the fiboMemo array. | ||
* | ||
* @author Augusto Baltazar ([email protected]) | ||
*/ | ||
public class Fibonacci { | ||
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private int[] fiboMemo; | ||
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private int findNthElement(int n) { | ||
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if (this.fiboMemo == null) { | ||
fiboMemo = new int[n + 1]; | ||
} | ||
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if (n <= 1) { | ||
fiboMemo[n] = n; | ||
} else { | ||
fiboMemo[n] = findNthElement(n - 1) + findNthElement(n - 2); | ||
} | ||
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return fiboMemo[n]; | ||
} | ||
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/** | ||
* Tests the function to the given number passed as argument | ||
* @param args | ||
*/ | ||
public static void main(String[] args) { | ||
try { | ||
int arg = Integer.parseInt(args[0]); | ||
System.out.println(new Fibonacci().findNthElement(arg)); | ||
} catch (Exception e) { | ||
System.out.println("The argument entered is not a valid integer number."); | ||
} | ||
} | ||
} |