Question

How to find the max and min of a subset of an array in Go

Answer 1

package main

import (
    "fmt"
    "math"
)

func main() {
    // Define the array
    arr := []int{1, 3, 7, 9, 2, 8, 5, 4}

    // Get the subset of the array (slice from index 1 to 5, exclusive of 5)
    subset := arr[1:5] // This gives [3, 7, 9, 2]

    // Find the maximum value in the subset
    max := math.Inf(-1) // Initialize to negative infinity
    for _, value := range subset {
        if float64(value) > max {
            max = float64(value)
        }
    }

    // Find the minimum value in the subset
    min := math.Inf(1) // Initialize to positive infinity
    for _, value := range subset {
        if float64(value) < min {
            min = float64(value)
        }
    }

    fmt.Printf("Max: %.0f\n", max) 
    fmt.Printf("Min: %.0f\n", min) 
}



/*
run:

Max: 9
Min: 2

*/

 

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Answer 2

package main

import (
    "fmt"
    "math"
)

// Function to find the maximum value in a slice
func findMax(slice []int) int {
    max := math.MinInt // Initialize to the smallest possible integer value
    for _, value := range slice {
        if value > max {
            max = value
        }
    }
    return max
}

// Function to find the minimum value in a slice
func findMin(slice []int) int {
    min := math.MaxInt // Initialize to the largest possible integer value
    for _, value := range slice {
        if value < min {
            min = value
        }
    }
    return min
}

func main() {
    // Define the array
    arr := []int{1, 3, 7, 9, 2, 8, 5, 4}

    // Get the subset of the array (slice from index 1 to 5, exclusive of 5)
    subset := arr[1:5] // This gives [3, 7, 9, 2]

    // Find the maximum and minimum values using functions
    max := findMax(subset)
    min := findMin(subset)

    // Print the results
    fmt.Printf("Max: %d\n", max)
    fmt.Printf("Min: %d\n", min)
}



/*
run:

Max: 9
Min: 2

*/

 

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