Sorting and Searching

Profiling the Selection Sort Algorithm

To measure the performance of a program, one could simply run it and measure how long it takes by using a stopwatch.
Recall that default construction for the Time class initializes the object to the current time.
```
Time now
```

We can use Time objects to measure the performance of the sorting algorithm.

Time before;
selection_sort(v);
Time after;

cout << "Elapsed time = " << after.seconds_from(before)
   << " seconds\n";