first semester files

1st-Semester-Fall-2021/CSNP/CSNP-04103-Lab-#8/Lab8-1ASharpe.cpp

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+/***************************************************************
+* Name: Aidan Sharpe
+* Course: Computer Science & Programming
+* Class: CS04103 Section: 6
+* Assignment Date: 11.10.2021
+* File Name: Lab8-1ASharpe.cpp
+*****************************************************************
+* ID: Lab 8 Problem 1
+* Purpose: Get and sort a list of speeds from the user
+*****************************************************************/
+
+#include <iostream>
+#include <string>
+
+using namespace std;
+
+void sort(float[], int);
+float mean(float[], int);
+
+int main()
+{
+    int numSpeeds;
+
+    cout << string(37, '*') << endl
+         << "*  WELCOME TO THE DMV SPEED CENTER  *" << endl
+         << string(37,'*') << endl;
+
+    // get number of speed values
+    do
+    {
+        cout << "Number of speeds to store: ";
+        cin >> numSpeeds;
+    } while (numSpeeds <= 0);
+    float speeds[numSpeeds];
+
+
+    // get all speed values
+    for(int i=0; i < numSpeeds; i++)
+    {
+        do
+        {
+            cout << "Speed " << i + 1 << ": ";
+            cin >> speeds[i];
+        } while (speeds[i] < 0);
+    }
+
+    // sort the speeds and display the sorted array
+    sort(speeds, numSpeeds);
+    cout << "\nSorted speeds are:" << endl;
+    for(int i=0; i<numSpeeds; i++)
+        cout << speeds[i] << ' ';
+
+    cout << "\n\nAverage of " << numSpeeds << " speeds is: " << mean(speeds, numSpeeds);
+    return 0;
+}
+
+// use selection sort to sort an array of floats of length <size> from least to greatest
+void sort(float array[], int size)
+{
+    int minIndex;
+    float minValue;
+
+    for(int start = 0; start < (size - 1); start++)
+    {
+        minIndex = start;
+        minValue = array[start];
+        for(int index = start + 1; index < size; index++)
+        {
+            if(array[index] < minValue)
+            {
+                minValue = array[index];
+                minIndex = index;
+            }
+        }
+
+        // swap
+        float temp = array[minIndex];
+        array[minIndex] = array[start];
+        array[start] = temp;
+    }
+}
+
+// find and return the mean of an array of floats of length size
+float mean(float array[], int length)
+{
+    float sum = 0;
+    for(int i=0; i<length; i++)
+        sum += array[i];
+
+    return sum / length;
+}