COSC 1436 C++ Exam Questions with All Correct Answers
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Course
COSC 1436 C++
Institution
COSC 1436 C++
COSC 1436 C++ Exam Questions with All Correct Answers
Given an int variable count that has already been declared, write a for loop that prints the integers 50 through 1, separated by spaces. Use no variables other than count. - Answer-1. for(count=50;count>0;count--){
2. cout<<count&...
COSC 1436 C++ Exam Questions with
All Correct Answers
Given an int variable count that has already been declared, write a for loop that prints
the integers 50 through 1, separated by spaces. Use no variables other than count. -
Answer-1. for(count=50;count>0;count--){
2. cout<<count<<" ";
3. }
Write a statement that increments the value of the int variable total by the value of the
int variable amount. That is, add the value of amount to total and assign the result to
total. - Answer-total+=amount;
Given that two int variables, total and amount, have been declared, write a sequence of
statements that:
initializes total to 0
reads three values into amount, one at a time.
After each value is read in to amount, it is added to the value in total (that is, total is
incremented by the value in amount). - Answer-1. total=0;
2. for(int i=1;i<=3;i++)
3. {
4. cin>>amount;
5. total+=amount;
6. }
Given that two int variables, total and amount, have been declared, write a loop that
reads integers into amount and adds all the non-negative values into total. The loop
terminates when a value less than 0 is read into amount. Don't forget to initialize total to
0. - Answer-1. total=0;
2. do
3. {
4. cin>>amount;
5. if(amount>0)
6. total+=amount;
7. }
8. while(amount>=0);
Write a for loop that computes the following sum: 5+10+15+20+...+485+490+495+500.
The sum should be placed in a variable sum that has already been declared and
initialized to 0. In addition, there is another variable, num that has also been declared.
You must not use any other variables. - Answer-1. for(int num=1;num<=500;num++)
2. {
, 3. if((num%5)==0)
4. {
5. sum+=num;
6. }
7. }
Given int variables k and total that have already been declared, use a for loop to
compute the sum of the squares of the first 50 counting numbers, and store this value in
total. Thus your code should put 1*1 + 2*2 + 3*3 +... + 49*49 + 50*50 into total. Use no
variables other than k and total. - Answer-1. total=0;f
2. for(k=1;k<=50;k++)
3. total+=k*k;
Given int variables k and total that have already been declared, use a while loop to
compute the sum of the squares of the first 50 counting numbers, and store this value in
total. Thus your code should put 1*1 + 2*2 + 3*3 +... + 49*49 + 50*50 into total. Use no
variables other than k and total. - Answer-1. total=0;
2. k=1;
3. while(k<=50)
4. {
5. total+=k*k;
6. k++;
7. }
Given an int variable n that has been initialized to a positive value and, in addition, int
variables k and total that have already been declared, use a do...while loop to compute
the sum of the cubes of the first n whole numbers, and store this value in total. Thus if n
equals 4, your code should put 1*1*1 + 2*2*2 + 3*3*3 + 4*4*4 into total. Use no
variables other than n, k, and total. - Answer-1. total=0;
2. k=0;
3. do
4. {
5. total+=k*k*k;
6. k++;
7. }while(k<=n);
Given an integer variable strawsOnCamel, write a statement that uses the auto-
increment operator to increase the value of that variable by 1. - Answer-
strawsOnCamel++;
Given an integer variable timer, write a statement that uses the auto-decrement
operator to decrease the value of that variable by 1. - Answer-timer--;
Consider this code: "int v = 20; --v; cout << v++;". What value is printed, what value is v
left with? - Answer-19 is printed, v ends up with 20
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