66 lines
1.6 KiB
Go
66 lines
1.6 KiB
Go
// Copyright © 2018 Inanc Gumus
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// Learn Go Programming Course
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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//
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// For more tutorials : https://learngoprogramming.com
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// In-person training : https://www.linkedin.com/in/inancgumus/
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// Follow me on twitter: https://twitter.com/inancgumus
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package main
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import "fmt"
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func main() {
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// ------------------------------------
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// #1 - THE BEST WAY
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// ------------------------------------
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students := [...][3]float64{
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{5, 6, 1},
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{9, 8, 4},
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}
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var sum float64
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for _, grades := range students {
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for _, grade := range grades {
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sum += grade
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}
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}
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const N = float64(len(students) * len(students[0]))
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fmt.Printf("Avg Grade: %g\n", sum/N)
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// ------------------------------------
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// #2 - SO SO WAY
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// ------------------------------------
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// // You don't need to define the types for the inner arrays
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// students := [2][3]float64{
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// [3]float64{5, 6, 1},
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// [3]float64{9, 8, 4},
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// }
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// var sum float64
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// sum += students[0][0] + students[0][1] + students[0][2]
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// sum += students[1][0] + students[1][1] + students[1][2]
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// const N = float64(len(students) * len(students[0]))
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// fmt.Printf("Avg Grade: %g\n", sum/N)
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// ------------------------------------
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// #3 - MANUAL WAY
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// ------------------------------------
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// student1 := [3]float64{5, 6, 1}
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// student2 := [3]float64{9, 8, 4}
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// var sum float64
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// sum += student1[0] + student1[1] + student1[2]
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// sum += student2[0] + student2[1] + student2[2]
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// const N = float64(len(student1) * 2)
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// fmt.Printf("Avg Grade: %g\n", sum/N)
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}
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