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Factorial of 0 and 1 must be 0. #67

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Factorial of 0 and 1 must be 0. #67

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23 changes: 13 additions & 10 deletions Java/Fibonacci_no.java
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Original file line number Diff line number Diff line change
Expand Up @@ -2,22 +2,25 @@
// Take as input "n", the count of fibonacci numbers to print.
// Print first n fibonacci numbers

import java.util.*;
import java.util.Scanner;

public class Fibonacci_no {

public static void main(String[] args) {
Scanner scn = new Scanner(System.in);
System.out.print("Enter a number: ");
int n = scn.nextInt();
scn.close();
int a = 0;
int b = 1;
for (int i = 0; i < n; i++) {
System.out.println(a);
int c = a + b;
a = b;
b = c;

}
// the factorial of 0 and 1 is 0 by default
if(n==0||n==1){
System.out.println("Factorial of "+n+" is: "+0);
return; // the main function will return and program will exit
}
int fact = 1;
for(int i = 1; i < n;i++){
fact = fact + (fact*i);
}
System.out.println("Factorial of "+n+" is: "+fact);
}
}
}