What are the values of s and n after the following loops?

Explain the difference between:

s = 0;

If (x > 0) s++;

If (y > 0) s++;

and

s = 0;

if (x > 0) s++;

else if (y > 0) s++;
Part B

What are the values of s and n after the following loops?:

a. int s = 1;

int n = 1;

while (x < 10)

s = s + n;

n++;

b. int s = 1;

int n;

for (n = 1; n < 5; n++)

s = s + n;

c. int s = 1;

int n = 1;

do

{

s = s + n;

n++;

}

while (s < 10 * n);
Part C

Write a program that accepts four grades, calculates the average of the four grades, and then converts the average from a number grade into a letter grading using the following grading scale:

A 100 – 90

B 89 – 80

C 79 – 70

D 69 – 60

F 59 – 0

Output the final grade average along with the letter grade.

Submit a screenshot of the executed program and the code of the program.

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