Please test the correctness of your programs in Q-1, Q-2 and Q-3 using PASS.
Q-1.
Write a program which reads a positive integer n and outputs all the factors of n, total factors and sum of factors. A number i is a factor of n if i divides n, and 1<i<n.
Let’s use for-loop in your program.
Hint: Write a for-loop with an integer counter i. In each iteration, check if n is divisible by i (one way to perform such check is to use the modulo operator).
Expected Output:
| Example 1 | Example 2 |
| Enter a Number in Range [2 to N]: -10
Error! Input can’t be a negative number. |
Enter a Number in Range [2 to N]: 17
No Factor for the Number 17 Total Factors are: 0 Sum of Factors is: 0 |
| Example 3 | Example 4 |
| Enter a Number in Range [2 to N]:
0 Error! Input can’t be zero. |
Enter a Number in Range [2 to N]:
1 Error! Input can’t be one. |
| Example 5 | Example 6 |
| Enter a Number in Range [2 to N]: 12
The Factor(s) of 12 are: 2 3 4 6 Total Factors are: 4 Sum of Factors is: 15
|
Enter a Number in Range [2 to N]:
2 No Factor for the Number 2 Total Factors are: 0 Sum of Factors is: 0
|
NOTE: Your program MUST follow the EXACT input/output format! Otherwise, you may not pass the test cases even your calculation is correct.
Q-2.
Write a program which reads numbers until -999 is entered and compute the following.
- How many positive numbers are entered?
- How many negative numbers are entered?
- How many zeros are entered?
- Sum of positive numbers
- Sum of negative numbers
- Average of positive numbers
Hints: 1) Exclude -999 from all computations.
2) Use while-loop in your program.
Expected Output:
| Example 1 | Example 2 |
| Enter Numbers! Enter -999 to Stop:
-999 Total Positive Numbers are: 5 Total Negative Numbers are: 3 Total Zeros are: 2 Sum of Positive Numbers is: 15 Sum of Negative Numbers is: -6 Average of Positive Numbers is: 3
|
Enter Numbers! Enter -999 to Stop:
-999 Total Positive Numbers are: 0 Total Negative Numbers are: 0 Total Zeros are: 0 Sum of Positive Numbers is: 0 Sum of Negative Numbers is: 0 Average of Positive Numbers is: 0 |
| Example 3 | Example 4 |
| Enter Numbers! Enter -999 to Stop:
Total Positive Numbers are: 0 Total Negative Numbers are: 7 Total Zeros are: 2 Sum of Positive Numbers is: 0 Sum of Negative Numbers is: -17 Average of Positive Numbers is: 0
|
Enter Numbers! Enter -999 to Stop:
Total Positive Numbers are: 4 Total Negative Numbers are: 3 Total Zeros are: 2 Sum of Positive Numbers is: 10 Sum of Negative Numbers is: -7 Average of Positive Numbers is: 2.5 |
Q-3. (to be marked)
Write a program to produce a square matrix with 0’s down the main diagonal, 1’s in the entries just above and below the main diagonal, 2’s above and below that, etc.
- 1 2 3 4
- 0 1 2 3
- 1 0 1 2
- 2 1 0 1
- 3 2 1 0
| Example 1 | Example 2 |
| Enter the number of rows: 5
0 1 2 3 4 1 0 1 2 3 2 1 0 1 2 3 2 1 0 1 4 3 2 1 0 |
Enter the number of rows: 8
0 1 2 3 4 5 6 7 1 0 1 2 3 4 5 6 2 1 0 1 2 3 4 5 3 2 1 0 1 2 3 4 4 3 2 1 0 1 2 3 5 4 3 2 1 0 1 2 6 5 4 3 2 1 0 1 7 6 5 4 3 2 1 0 |
| Example 3 | Example 4 |
| Enter the number of rows: 0
Please enter positive integer. |
Enter the number of rows: 3
0 1 2 1 0 1 2 1 0 |
