23. What is the output of the following code? int main() { int x = 10; int y = 3
ID: 3871427 • Letter: 2
Question
23.
What is the output of the following code?
int main() {
int x = 10; int y = 30;
if (x < 0) {
y = 0;
}
else if (x < 10) {
y = 10;
}
else {
y = 20;
}
cout << y;
return 0;
}
Select one:
a. 0
b. 10
c. 20
d. 300
24..
What is the output of the following code?
int main() {
int i = 6;
while (i > 2) {
i = i - 2;
cout << i << " ";
}
return 0;
}
Select one:
a. 4 2
b. 6 4 2
c. 6 4
d. 4 2 0
34...
Given the following, which line of code stores 40 into the 4th column of the 6th row of array dataVals?
const int rows = 7;
const int cols = 5;
int dataVals[rows][cols];
Select one:
a. dataVals[5, 3] = 40;
b. dataVals[5 * 3] = 40;
c. dataVals[3][5] = 40;
d. dataVals[5][3] = 40;
36..
What is the output of the following code?
int main() {
string cityName = “La Jolla”;
cout << cityName.length();
return 0;
}
Select one:
a. 8
b. 9
c. 7
d. Cannot be determined.
38..
What is the output of the following code?
// before’s elements set to: 0, 4, 8, then 12
after.at(0) = before.at(0);
for(i = 1; i < before.size(); ++i) {
tmp = before.at(i-1) + before.at(i);
after.at(i) = tmp / 2;
cout << after.at(i) << " ";
}
Select one:
a. 0 4 8 12
b. 4 8 12
c. 0 2 6 10
d. 2 6 10
39..
What is a line of code?
Select one:
a. Used to denote a list of statements.
b. A row of text.
c. Represents a particular memory location.
d. Textual representation of a program.
40..
Which line of code will cause an error when added to the following program?
int main() {
const int numCtry=16;
vector<string> ctryNames(numCtry);
vector<int> ctryMins(numCtry);
// line of code here
return 0;
}
Select one:
a. ctryNames.at(0) = ctryMins.at(0);
b. ctryNames = "Germany";
c. ctryNames.at(5) = ctryNames.at(0);
d. ctryMins.at(0) = 223;
Explanation / Answer
23.
What is the output of the following code?
int main() {
int x = 10; int y = 30;
if (x < 0) {
y = 0;
}
else if (x < 10) {
y = 10;
}
else {
y = 20;
}
cout << y;
return 0;
}
Answer: Option c. 20
Explanation:
Program:
#include <iostream>
using namespace std;
int main() {
int x = 10; int y = 30;
if (x < 0) { // Here 10 > 0 so this condition Fails
y = 0;
}
else if (x < 10) { //Here 10 < 10 so this condition also Fails
y = 10;
}
else {
y = 20; // Here above two conditions becomes false so the Final value of y becomes 20
}
cout << y; // Here we are Printing the value of y
return 0;
}
Output: 20
24..
What is the output of the following code?
int main() {
int i = 6;
while (i > 2) {
i = i - 2;
cout << i << " ";
}
return 0;
}
Answer: Option a. 4 2?
Explanation:
Program:
#include <iostream>
using namespace std;
int main() {
int i = 6;
while (i > 2) { // Here the condition 6>2 and 4>2 becomes True
i = i - 2; // Here the value of i becomes 4 and 2
cout << i << " "; // Here we are Printing the i values
}
return 0;
}
Output:
4 2
34...
Given the following, which line of code stores 40 into the 4th column of the 6th row of array dataVals?
const int rows = 7;
const int cols = 5;
int dataVals[rows][cols];
Answer: Option d. dataVals[5][3] = 40;
Explanation:
Program:
#include <iostream>
using namespace std;
int main() {
const int rows = 7;
const int cols = 5;
int dataVals[rows][cols];
dataVals[5][3] = 40;
cout<< dataVals[5][3] <<endl;
return 0;
}
Output: 40
36..
What is the output of the following code?
int main() {
string cityName = “La Jolla”;
cout << cityName.length();
return 0;
}
Answer: Option a. 8?
Explanation:
Program:
#include <iostream>
using namespace std;
int main() {
string cityName = "La Jolla";
cout << cityName.length();
return 0;
}
Output: 8
38..
What is the output of the following code?
// before’s elements set to: 0, 4, 8, then 12
after.at(0) = before.at(0);
for(i = 1; i < before.size(); ++i) {
tmp = before.at(i-1) + before.at(i);
after.at(i) = tmp / 2;
cout << after.at(i) << " ";
}
Answer: Option d. 2 6 10?
Explanation:
4/2 = 2
12/2 = 6
20/2 = 10
39..
What is a line of code?
Answer: Option d. Textual representation of a program.?
40..
Which line of code will cause an error when added to the following program?
int main() {
const int numCtry=16;
vector<string> ctryNames(numCtry);
vector<int> ctryMins(numCtry);
// line of code here
return 0;
}
Answer: Option a. ctryNames.at(0) = ctryMins.at(0);
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.