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VRAAG 4: PROBLEEMOPLOSSINGSPROGRAMMERING Stappers gebruik 'n afstandskaart om hulle staproetes te beplan - NSC Information Technology - Question 4 - 2021 - Paper 1
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VRAAG 4: PROBLEEMOPLOSSINGSPROGRAMMERING Stappers gebruik 'n afstandskaart om hulle staproetes te beplan. Kontrolepunte versus rasplike of omgeplakte op 'n staproet... show full transcript
Worked Solution & Example Answer:VRAAG 4: PROBLEEMOPLOSSINGSPROGRAMMERING Stappers gebruik 'n afstandskaart om hulle staproetes te beplan - NSC Information Technology - Question 4 - 2021 - Paper 1
Step 1
Knoppie [4.1 - Vertoon afstandskaart]
Answer
To display the distance map:
- Initialize an index variable to loop through the
arrNamearray, which contains the control points. - Print the title/header for the distance chart.
- Iterate through the
arrNamearray and print each control point name. - For each corresponding distance in the
arrAfstandearray, iterate through the column indexes; print the distance values with proper formatting. - Ensure the distances are represented in kilometers with two decimal places for clarity.
Example Output:
Morgan Haga Haga Cintsa Beacon Gonubie
0.00 62.00 13.00 24.63 16.20
62.00 0.00 61.00 59.87 26.00
13.00 61.00 0.00 66.62 24.63
24.63 59.87 66.62 0.00 15.20
16.20 26.00 24.63 15.20 0.00
Step 2
Knoppie [4.2 - Validering]
Answer
To validate the distance values:
- Loop through all distance values in the
arrAfstandearray. - For each value, check if it corresponds accurately to its symmetrical position (i.e.,
arrAfstande[iRow][iCol]should equalarrAfstande[iCol][iRow]). - If a mismatch is detected, replace the value with the correct distance.
- Build a string representation for output that shows both indices and their accurate distances.
Example Output:
Vervang die afstand by:
Byv: 1,1 met 9.57
Byv: 2,3 met 15.2
Step 3
Knoppie [4.3 - Roetebepalner]
Answer
To select and display the route:
- Initialize a variable to hold selected route choices from a combo box.
- Extract the selected route from the combo box, initializing the total distance variable to zero.
- Loop through the selected route, and for each segment of the route, retrieve the corresponding distances from the
arrAfstandearray. - Update the total distance by adding the individual segments' distances.
- Format and output the details of each segment along with the total distance for clarity.
Example Output:
Roete: 4,3,1,2,5
Beacon na Cintsa: 9.63 (192.6 minute)
Totale afstand: 38.3 km