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Competitive programming - take the quiz

A vibrant illustration of a computer programmer surrounded by code snippets, algorithms, and data structures, with a focus on competitive programming concepts.

Competitive Programming Challenge

Test your skills with our Competitive Programming Quiz! This quiz consists of 23 carefully crafted questions designed to assess your knowledge in various programming concepts and algorithms.

Join us and see how well you fare against other programmers!

Multiple Choice Questions
Checkbox Options
For All Skill Levels

23 Questions6 MinutesCreated by CodingEagle57

What is the time complexity of a linear search algorithm?

O(n)

O(log n)

O(1)

O(n^2)

Which data structure uses First-In-First-Out (FIFO) ordering?

Queue

Stack

Heap

Tree

Which sorting algorithm has an average time complexity of O(n log n)?

Merge Sort

Bubble Sort

Insertion Sort

Selection Sort

What is the output of the following code snippet? Int x = 5; int y = x++ + ++x; printf("%d", y);

Which of the following is NOT a valid data type in C++?

String

Float

Boolean

Character

Integer

What is the output of the following code snippet? Int arr[] = {1, 2, 3, 4, 5}; printf("%d", *(arr+2));

Which of the following is NOT a valid loop control statement in C++?

For-each

For

While

Do-while

Break

What is the output of the following code snippet? Int x = 10; if (x > 5 && x < 15) { printf("Hello"); } else { printf("World"); }

Hello

World

Hello World

No output

Which of the following is NOT a valid complexity class?

O(n^3)

O(log n)

O(2^n)

O(1)

O(n!)

What is the output of the following code snippet? Int x = 5; int y = 2; printf("%d", x / y);

2.5

2.0

Which of the following is NOT a valid bitwise operator in C++?

What is the output of the following code snippet? Int x = 5; int y = 3; printf("%d", x % y);

0.6667

What is the output of the following code snippet? Int arr[] = {1, 2, 3, 4, 5}; printf("%d", sizeof(arr) / sizeof(arr[0]));

Which of the following is NOT a valid control structure in C++?

If-else

Switch-case

For

While

Do-while

Goto

What is the output of the following code snippet? Int x = 5; int y = 3; printf("%f", (float)x / y);

1.6667

1.0

Which of the following is NOT a valid complexity class for algorithms?

O(n^2)

O(log n)

O(2^n)

O(1)

O(n!)

O(n log n)

What is the output of the following code snippet? Int x = 5; int y = 2; printf("%d", x * y + x / y);

What is the output of the following code snippet? Int x = 10; int y = 5; printf("%d", x - y * 2);

-10

-5

Which of the following is NOT a valid data structure in competitive programming?

Stack

Heap

Graph

Queue

Tree

Array

What is the time complexity of a binary search algorithm?

O(log n)

O(n)

O(1)

O(n^2)

What is the output of the following code snippet? Int x = 7; int y = 3; printf("%d", x % y);

0.3333

What is the output of the following code snippet? Int arr[] = {1, 2, 3, 4, 5}; printf("%d", *(arr+3));

What is the output of the following code snippet? Int x = 8; int y = 3; printf("%d", x / y);

2.6667

2.0

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