Weekly Challenge #1 – Loops & Arrays

Test your skills with fundamental programming problems focusing on loops, arrays, and basic algorithms. Perfect for beginners!

Active

Start: 7 January 2026 at 04:38 am

End: 14 January 2026 at 04:38 am

Your Performance

Score

0 / 135

Problems Solved

0 / 10

Progress

Contest Rules

# Contest Rules 1. **Time Limit**: Contest runs for 7 days from start time 2. **Scoring**: Each problem has a base score. You earn points when you mark it as solved 3. **Languages**: You can solve problems in C, C++, Java, or Python 4. **Submission**: Use the "Mark as Solved" button after solving a problem 5. **Scoring Window**: You can only earn points during the active contest period 6. **Multiple Attempts**: You can attempt problems multiple times, but points are awarded only once per problem 7. **Leaderboard**: Currently stored locally in your browser. Cloud leaderboards coming soon! ## Tips - Read problem statements carefully - Check sample input/output - Use hints if you're stuck - Test your code with the provided sample cases - Use online compilers to verify your solution before marking as solved

Problems

Problem 1: Sum of Two NumbersBeginnerC

Write a C program to read two numbers from the user and print their sum.

Score: +10 pts

Basic I/OArithmetic

Problem 2: Factorial of a NumberBeginnerC

Write a C program to calculate the factorial of a given number using loops.

Score: +15 pts

LoopsRecursion

Problem 3: Fibonacci SeriesBeginnerC

Write a C program to generate Fibonacci series up to n terms.

Score: +15 pts

LoopsSequences

Problem 4: Find Maximum and Minimum in ArrayIntermediateC

Write a C program to find the maximum and minimum elements in an array.

Score: +20 pts

ArraysLoops

Problem 5: Sum of Two NumbersBeginnerC++

Write a C++ program to read two numbers and print their sum using cin and cout.

Score: +10 pts

Basic I/OArithmetic

Problem 6: Factorial Using FunctionsBeginnerC++

Write a C++ program to calculate factorial using a separate function.

Score: +15 pts

FunctionsLoops

Problem 7: Hello World with ClassBeginnerJava

Write a Java program to print "Hello, World!" using a class and main method.

Score: +10 pts

Basic I/OClasses

Problem 8: Sum of Array ElementsBeginnerJava

Write a Java program to calculate the sum of all elements in an array.

Score: +15 pts

ArraysLoops

Problem 9: Sum of Two NumbersBeginnerPython

Write a Python program to read two numbers and print their sum.

Score: +10 pts

Basic I/OArithmetic

Problem 10: List OperationsBeginnerPython

Write a Python program to perform list operations: append, remove, and find maximum.

Score: +15 pts

ListsData Structures