Answer:
Systems modeling or system modeling is the interdisciplinary study of the use of models to conceptualize and construct systems in business and IT development. A common type of systems modeling is function modeling, with specific techniques such as the Functional Flow Block Diagram and IDEF0.
Explanation:
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<span>There could be more than one item with the same expiration date, and primary keys must be unique.</span>
Answer:
It depends on the features of the Calculator but most mobile phones are computers.
Explanation:
A computer is an electronic device that can accept data (Both can), process the data (both can), produce the results of the processed data (both can) and store both result and initial data (some calculators can, some cannot but most mobile phones can).
In my opinion, they are computers but that's dependent on their features especially storage.
Answer:
// Assume that all variables a, n, temp have been declared.
// Where a is the array, n is the array length, temp is a temporary
// storage location.
// Cycle through the array a.
// By the time the loop gets halfway,
// The array would have been reversed.
// The loop needs not get to the end of the array.
// Hence, the loop ends halfway into the array i.e n/2.
for (int k = 0; k < n / 2; k++) {
// Swap first and last, second and next-to-the-last and so on
temp = a[k];
a[k] = a[n - k - 1];
a[n - k - 1] = temp;
}
Explanation:
Explanation has been given in the code in form of comments. Please go through the comments in the code carefully.
Hope this helps!