Question

What is the output from each of the following segments of C++ code? Record the output after the “Answer” prompt at the end of each program fragment. Assume all variables have been suitably declared. (Each problem is worth 3 points.)

1. for (int j = 25; j > 16; j -= 3)

       cout << setw(5) << j;

    Answer:

2. int sum = 0;

      for (int k = -2; k <= 2; k++)

        sum = sum + k;

      cout << sum;

Answer:

for (int k = 2; k < 5; k++)                

   {

      for (int j = 3; j < 6; j++)

      cout << setw(4) << (k + j) << " ";

      cout << endl;

   }

    Answer:

int sum = 0;                              

    int a = 6;

    while(a < 9)

    {

      for (int k = a; k < 8; k++)

        sum = sum + k;

      a = a + 1;

     }

     

    cout << sum << endl;

     Answer:

int k = 0;

for (k = 4; k < 1; k++)                     

   {

     for (int counter = 1; counter <=10; counter++)

       cout << setw(5) << counter;

     cout << endl;

   }

    cout << k << endl;

         Answer:

6. int k = 0;

   for (k = 1; k <= 10; k++)                   

   {

     for (int counter = 1; counter <= 10; counter--)

        cout << counter << endl;

     cout << " " << endl;

   }

    cout << k << endl;

Answer:

Assuming all variables have been properly declared and all source code has been properly setup in a compiler, what is the output from each of the following fragments of C++ code? Record the output after the “Answer” prompt at the end of each program fragment. (2 points each)

                

a. int answer = 5;

   int number = 8;

   number = number + ++answer;

   cout << answer << " " << number;

          

    

              

//Answer:

b. int answer = 5;

   int number = 8;

   number = number + answer--;

   cout << answer << " " << number;

              

         

   //Answer:

Answer 1

1. for (int j = 25; j > 16; j -= 3)        cout << setw(5) << j;     Answer: Explanation Prints number in the width of 5

2. int sum = 0;       for (int k = -2; k <= 2; k++)         sum = sum + k;       cout << sum; Answer: 0 Explanation -2 -1 + 0 + 1 + 2 = 0

for (int k = 2; k < 5; k++)                    {       for (int j = 3; j < 6; j++)       cout << setw(4) << (k + j) << " ";       cout << endl;    } Answer:

int sum = 0;                                   int a = 6;     while(a < 9)     {       for (int k = a; k < 8; k++)         sum = sum + k;       a = a + 1;      }           cout << sum << endl; Answer: 20

// Note: 4 sub parts at a time please -- Policy of Chegg