Need help with these study question 1. What is the output? int main(void) { int

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Need help with these study question

1. What is the output?

int main(void)
{
    int fun = 13; int time = 3; int result;
   
    result = fun++ * ++time;
    cout << fun << "***" << time << "***" << result << endl;
    return 0;
}

2. How many times would the following loop be executed?
            int i = 12;
            while (i > 0)
            {
                  cout << 2 * i << endl;
             i += 2;
            }

3. while( n <= 5){
cout << n << " ";
n++;
}

4. How many times would the following loop be executed?
            int i = 3;
            do
            {
                    cout << 2 * i << endl;
              i += 3;
            }while (i < 10);

Explanation / Answer

1. The output is

result = fun++ * ++time;          //here result is computed using fun value before incrementing and time value

                                                 after         incrementing

The statement cout << fun << "***" << time << "***" << result << endl;

prints                            14***4***52

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2.The loop runs infinitely because initially i=12 , and it increments continuously and it is greater than zero.

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3.The loop runs infinitely, if the initial value of n is greater or equal to 6.

Here the initial value of n is not provided.

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4.; The loop runs 4 times.

First time unconditionally executes the loop.

in the second iteration the value of i becomes 6, which is<10,so, it runs again

In the third iteration the value of i becomes 9, which is <10, runs again

In the fourth iteration the value of i becomes 12 which is >10 . so exits from loop.

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