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FibonacciDynamic.java
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40 lines (33 loc) · 1.06 KB
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import java.util.Arrays;
import java.util.Scanner;
public class fibo {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("How many Fibonacci digits do you want?: ");
int digits = sc.nextInt();
// Normal Fibonacci
int a = 0;
int b = 1;
int ab = a + b;
System.out.print("0 ");
System.out.print("1 ");
for (int i = 0; i < digits; i++) {
System.out.printf("%d ", ab);
a = b;
b = ab;
ab = a + b;
}
// Dynamic Programming Fibonacci,
System.out.println(Arrays.toString(FibonacciDynamic(digits)));
sc.close();
}
public static int[] FibonacciDynamic(int size) { // bottom up approach
int[] fibonacciDigits = new int[size + 1];
fibonacciDigits[0] = 0;
fibonacciDigits[1] = 1;
for (int i = 2; i <= size; i++) {
fibonacciDigits[i] = fibonacciDigits[i - 1] + fibonacciDigits[i - 2];
}
return fibonacciDigits;
}
}