Fibonacci Series using for loop in Swift. Fibonacci is a series of numbers in which each number is the sum of the two preceding numbers. This program prints the first 10 numbers in the Fibonacci Series.
var x = -1 ,y = 1, sum = 0;
for i in 0..<10 {
sum = x+y;
x = y;
y = sum;
print(sum);
}
0 1 1 2 3 5 8 13 21 34
Initially assign -1 to x and 1 to y.
Now iterate from 0 to 10.
Add the x and y values and assign it to the sum
Replace the value of x by y and y by sum. Hence the Fibonacci Series can be done with the help of for loop.
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