
Weekly Contest #6 - TechXNinjas
Authored by TechXNinjas undefined
Computers
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the time complexity of the following snippet?
for (int i =0;i<n;i++) {
for(int j=i;j<n;j++)
- - - - - - - - - - -
}
}
O [n^2 ]
O [n(n+1)/2 ]
O [n]
O [n^3]
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the time complexity of the following snippet?
for (int i =0;i<n;i++) {
for(int j=0;j<n;j++)
- - - - - - - - - - -
}
}
O [n^2 ]
O [n(n+1)/2 ]
O [n]
O [n^3]
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Consider the following pseudocode using a switch statement:
switch (variable) {
case 1:
print("A");
break;
case 2:
print("B");
case 3:
print("C");
break;
default:
print("D");
}
A
B
BC
CD
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statement is true about the behavior of a switch statement?
Each case in a switch statement must end with a return statement.
If a case does not end with a break statement, execution will continue to the next case until a break is encountered or the end of the switch is reached.
The default case in a switch statement is executed only if all other case labels are skipped.
The switch statement can only be used with integer values or enumerations.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Consider the following pseudocode using a do-while loop:
int count = 0;
do {
print(count);
count++;
} while (count < 3);
What will be the output of this code snippet?
0 1 2
0 1 2 3
1 2 3
0 1 2 3 4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Consider the following pseudocode using a do-while loop:
int count = 2;
do {
print(count);
count++;
} while (count < 2);
What will be the output of this code snippet?
ERROR
array index out of bound
2
22
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements accurately describes the behavior of a do-while loop?
The loop condition is checked before executing the loop body, so if the condition is false initially, the loop body may not execute at all.
The do-while loop guarantees that the loop body executes at least once, regardless of the loop condition.
A do-while loop can only be used if the loop body has a statement that changes the condition variable.
The do-while loop will execute infinitely if the condition never becomes false, similar to a for loop with no termination condition.
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