CODEWITHSUNDEEP
go
curiouscoder
curiouscoder

Reputation: 29

How to find the sum of cells in go?

Implement the function SumCells(cells).

Input: an arbitrary collection cells of Cell variables.

Return: a single Cell variable corresponding to summing corresponding elements in every cell in cells. enter image description here

type Cell [2]float64

func SumCells(cells ...Cell) Cell {
    sum := 0.0
    var c Cell
    c = append(c, cells)
    for rowIndex, row := range cells { // loop through rows
        for cellIndex := range row {
        sum += [rowIndex][cellIndex]
        }
    }
    return c
}

Could someone explain how to write this function?

Upvotes: 1

Views: 99

Answers (3)

Arda Basoglu
Arda Basoglu

Reputation: 1620

// Cell is a 2D point
type Cell [2]float64

// SumCells adds a bunch of cells together
func SumCells(cells ...Cell) Cell {
    var sum Cell
    for _, cell := range cells {
        sum = sum.Add(cell)
    }
    return sum
}

// Cell.Add adds two cells together
// This is a method on the Cell type
func (c Cell) Add(other Cell) Cell {
    return Cell{
        c[0] + other[0], 
        c[1] + other[1],
    }
}

Upvotes: 0

Nicholas Carey
Nicholas Carey

Reputation: 74345

Something like this should do you:

func SumCells(cells ...Cell) (sum Cell) {
    for _, c := range cells {
        sum[0] += c[0]
        sum[1] += c[1]
    }
    return sum
}

type Cell [2]float64

Or, if you wanted to future-proof yourself in case the number of elements in a Cell changes:

func SumCells(cells ...Cell) (sum Cell) {
    for _, c := range cells {
        for i, v := range c {
            sum[i] += v
        }
    }
    return sum
}

type Cell [2]float64

Upvotes: 0

Manjeet Singh
Manjeet Singh

Reputation: 2398

Cell is a single dimensional array or simple array and in SumCells ...Cell or []Cell want's an array of Cells []Cell{{1,3}, {3, 4}} so you can simply do this Go Playground

func SumCells(cells []Cell) float64 {
    var sum float64
    for _, cell := range cells {
        sum += cell[0] + cell[1]
    }
    return sum
}

Upvotes: 1

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