Step by Step solution about How to resolve the algorithm Price fraction step by step in the Go programming language

The provided Go code calculates the potential fee (pf) for a given value (v). It uses a series of switch cases to determine the fee based on the value provided. Here's a detailed explanation of the code:

1. package main: This line indicates that the code is part of the main package, which is the entry point for executable Go programs.

2. import "fmt": This line imports the "fmt" package, which provides functions for formatted I/O operations.

3. func pf(v float64) float64: This function takes a single float64 parameter, v, and returns a float64 value, representing the potential fee.

4. Inside the pf function, there's a switch statement that uses the v parameter to determine the potential fee. Each case checks if v is less than a specific threshold and returns a corresponding fee value. Here's a breakdown of the cases:

   • case v < .06: If v is less than 0.06, it returns 0.10.
   • case v < .11: If v is less than 0.11, it returns 0.18.
   • case v < .16: If v is less than 0.16, it returns 0.26.
   • case v < .21: If v is less than 0.21, it returns 0.32.
   • case v < .26: If v is less than 0.26, it returns 0.38.
   • case v < .31: If v is less than 0.31, it returns 0.44.
   • case v < .36: If v is less than 0.36, it returns 0.50.
   • case v < .41: If v is less than 0.41, it returns 0.54.
   • case v < .46: If v is less than 0.46, it returns 0.58.
   • case v < .51: If v is less than 0.51, it returns 0.62.
   • case v < .56: If v is less than 0.56, it returns 0.66.
   • case v < .61: If v is less than 0.61, it returns 0.70.
   • case v < .66: If v is less than 0.66, it returns 0.74.
   • case v < .71: If v is less than 0.71, it returns 0.78.
   • case v < .76: If v is less than 0.76, it returns 0.82.
   • case v < .81: If v is less than 0.81, it returns 0.86.
   • case v < .86: If v is less than 0.86, it returns 0.90.
   • case v < .91: If v is less than 0.91, it returns 0.94.
   • case v < .96: If v is less than 0.96, it returns 0.98.
   • Default case: If none of the above cases match, it returns 1.0.

5. func main(): This function is the starting point of the program, which defines the main logic and is automatically called when the program runs.

6. Inside the main function:

   • tests := []float64{0.3793, 0.4425, 0.0746, 0.6918, 0.2993, 0.5486, 0.7848, 0.9383, 0.2292, 0.9760}: This line creates a slice called tests with ten float64 values representing the test input values.

7. for _, v := range tests: This loop iterates over each element in the tests slice and assigns it to the v variable.

8. fmt.Printf("%0.4f -> %0.2f\n", v, pf(v)): Inside the loop, it uses the fmt.Printf function to print the formatted output. It prints the test value with four decimal places (%0.4f), followed by an arrow (->), and then the result of the pf function with two decimal places (%0.2f).

In summary, this code defines a function, pf, that calculates the potential fee based on an input value using a series of case statements. The main function tests the pf function using various input values and prints the results.

package main

import "fmt"

func pf(v float64) float64 {
    switch {
    case v < .06:
        return .10
    case v < .11:
        return .18
    case v < .16:
        return .26
    case v < .21:
        return .32
    case v < .26:
        return .38
    case v < .31:
        return .44
    case v < .36:
        return .50
    case v < .41:
        return .54
    case v < .46:
        return .58
    case v < .51:
        return .62
    case v < .56:
        return .66
    case v < .61:
        return .70
    case v < .66:
        return .74
    case v < .71:
        return .78
    case v < .76:
        return .82
    case v < .81:
        return .86
    case v < .86:
        return .90
    case v < .91:
        return .94
    case v < .96:
        return .98
    }
    return 1
}

func main() {
    tests := []float64{0.3793, 0.4425, 0.0746, 0.6918, 0.2993,
        0.5486, 0.7848, 0.9383, 0.2292, 0.9760}
    for _, v := range tests {
        fmt.Printf("%0.4f -> %0.2f\n", v, pf(v))
    }
}