How to find Largest, Smallest of three numbers in Golang? Code examples

How to find Largest, Smallest of three numbers in Golang? Code examples

This post covers two programs, the First program is to check the largest of three numbers, and the second program is to check the smallest of three numbers.

To understand these programs, You should have understood the following features

How to check the largest/biggest of three numbers using an if-else statement in Golang

In the below program, Read the three input numbers from the user using the Scanln function and store them in number1,numer2, and number3 variables

To check the largest of the three numbers,

The following conditions are checked using the if-else statement.

  • if a number1 is greater than or equal to number2 and number3, number1 is the largest number
  • if a number2 is greater than or equal to a number1 and number3, the number2 is the largest number
  • else number 3 is the largest
package main

import (
    "fmt"
)

func main() {
    var number1, number2, number3 int
    fmt.Print("Enter First Number:")
    fmt.Scanln( & number1)
    fmt.Print("Enter Second Number:")
    fmt.Scanln( & number2)
    fmt.Print("Enter Third Number:")
    fmt.Scanln( & number3)

    fmt.Printf("The Entered three numbers are %d %d %d \n", number1, number2, number3)

    if number1 >= number2 && number1 >= number3 {
        fmt.Println("Largest of three numbers: ", number1)
    } else if number2 >= number1 && number2 >= number3 {
        fmt.Println("Largest of three numbers: ", number2)
    } else {
        fmt.Println("Largest of three numbers: ", number3)
    }
}

The output of the above code is

Enter First Number:25  
Enter Second Number:96  
Enter Third Number:745  
The Entered three numbers are 25 96 745  
Largest of three numbers: 745

How to find the smallest/lesser of three numbers in Golang?

The following program takes three numbers from user input and stores them in number1,number2,number3

To check the smallest of three numbers, the following conditions are checked using the if-else statement

  • if a number1 is lesser than or equal to number2 and number3, the number1 is the smallest number
  • if a number2 is lesser than or equal to a number1 and number3, the number2 is the smallest number
  • else number 3 is the smallest
package main

import (
    "fmt"
)

func main() {
    var number1, number2, number3 int
    fmt.Print("Enter First Number:")
    fmt.Scanln( & number1)
    fmt.Print("Enter Second Number:")
    fmt.Scanln( & number2)
    fmt.Print("Enter Third Number:")
    fmt.Scanln( & number3)

    fmt.Printf("The Entered three numbers are %d %d %d \n", number1, number2, number3)

    if number1 <= number2 && number1 <= number3 {
        fmt.Println("Smallest of three numbers: ", number1)
    } else if number2 <= number1 && number2 <= number3 {
        fmt.Println("Smallest of three numbers: ", number2)
    } else {
        fmt.Println("Smallest of three numbers: ", number3)
    }
}

Output is 4

Enter First Number:5
Enter Second Number:78
Enter the Third Number:1
The Entered three numbers are 5 78 1
Smallest of three numbers:  1

Conclusion

In this tutorial, Check the largest and smallest of three numbers in Golang.