Sorting an array of strings with respect to an array of integers

July 21, 2023

am a beginner in coding and still learning, i have two arrays , first one for cars and second one for the cars speeds

string[] cars = {"Volvo", "BMW","Ford", "Mazda"};

Int[] speeds = {150,130,200,110}

So that the speed of volvo is 150 , speed of bmw is 130 speed of ford is 300 ..etc

Is there a method in c# to rearrange the arrays with respect to speed from highest to lowest speed so that the arrays become as follows

String[] cars = {"ford","volvo","bmw","mazda"};

Int[] speeds = {300,150,130,110};

>Solution :

A concise way to do this is to "zip" the two arrays together into one array of tuples, sort the tuples by speed, and then split the tuples back into two arrays:

var tuples = cars.Zip(speeds, (car, speed) => (car, speed))
    .OrderByDescending(tuple => tuple.speed)
    .ToList();
string[] sortedCars = tuples.Select(tuple => tuple.car).ToArray();
int[] sortedSpeeds = tuples.Select(tuple => tuple.speed).ToArray();