How to Generate a Sequence of Ulam Numbers in Golang 1.20
0In this video we are going to generate source code for the GoLang Program, How to Generate a Sequence of Ulam Numbers using chatGPT.
After generating we will verify and run the generated code.
IMPORTANT NOTE on SOURCE CODE: only source code that are acceptable by the youtube description box will be displayed.
In this program I have replaced the angled brackets with > or <. once you copy the source code to editor replace it with greater than or less than symbols respectively.
##############SOURCE CODE#########################
package main
import "fmt"
func ulamSequence(n int) []int {
ulam := []int{1, 2}
for i := 3; i <= n; i++ {
count := 0
for j := 0; j < len(ulam)-1; j++ {
for k := j + 1; k < len(ulam); k++ {
if ulam[j]+ulam[k] == i {
count++
if count > 1 {
break
}
}
}
if count > 1 {
break
}
}
if count == 1 {
ulam = append(ulam, i)
}
}
return ulam
}
func main() {
n := 20
ulam := ulamSequence(n)
fmt.Printf("The Ulam sequence up to %d is %v", n, ulam)
}
##############END OF SOURCE CODE#########################
Below is the explanation for the program:
The ulamSequence function takes an integer parameter n and returns a slice containing the Ulam sequence up to n. The Ulam sequence is a sequence of positive integers such that each number is the sum of exactly two distinct previous members of the sequence.
To generate the Ulam sequence, we start with the first two numbers of the sequence, 1 and 2. We then iterate from 3 to n, and for each number we count the number of distinct pairs of previous Ulam numbers that add up to the current number. If there is only one such pair, then the current number is an Ulam number and is added to the sequence. If there are more than one pair, or no pairs, then the number is not an Ulam number and is skipped.
In the main function, we call ulamSequence with the value 20, and print the result using the fmt.Printf function. You can change the value of n to generate the Ulam sequence up to any other number.
#go #goprogramming #golang #golangtutorial #golanguage