Programming in D: The Ultimate Guide for Software Engineers/

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Solution: Halve the Elements of the Array

Solution: Halve the Elements of the Array

Here is a solution to the coding challenge given in the previous lesson.

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Solution #

Here is the code that halves all the elements of the array which are greater than 10.

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import std.stdio;
void Halve() {
    double[] array = [ 1, 20, 2, 30, 7, 11 ];
    double[] slice = array;    // Start with a slice that
                               // provides access to all of
                               // the elements of the array
    while (slice.length) {     // As long as there is at least
                               // one element in that slice
        if (slice[0] > 10) {   // Always use the first element
            slice[0] /= 2;     // in the expressions
        }
        slice = slice[1 .. $]; // Shorten the slice from the
                               // beginning
    }
    int i = 0;
    while(i<array.length) {
    
        write(array[i]," ");
        ++i;
    }
}

Solution explanation

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