Problems for Beginners

Copycat
Read an integer variable and print it.
Add Them Up
Read two integer variables, calculate their sum, and print it.
Formatted Numbers
Read an integer variable and print it in which the digits are separated into groups of three by comm...
Clock Math
Given a time (hours as H and minutes as M), determine the smaller angle between the two hands of a c...
Divisors
Read an integer variable and print all of its divisors (including 1 and the number itself).
Fibonacci Numbers
Given an integer N, print the N-th Fibonacci number. A Fibonacci series is a series of numbers in wh...
Big Factorials
Given an integer N, print the trailing 4 digits of N! (N factorial). N!=N×(N−1)×(N−2)×...×1 Here are...
Full Pyramid
Given an integer N, print a full pyramid of asterisks. A full pyramid of asterisks of size N has N l...
Byang's Additions
Byang is learning how to add numbers. However, he gets confused whenever there is a carry. To help B...
Decent Arrays
Given N numbers determine if they are in ascending order.
Better Passwords
Byang is creating an account on Toph. He needs your help to create a strong password. Byang will giv...
Caesar Cipher
Byang wants to write a secret message to his friend. He has recently discovered Caesar Cipher. Caesa...
ASCII Progress Bar
In this problem, you need to write a code that prints an ASCII progress bar. In each test case, you ...
BPL Mubarak!
Bangladesh Premier League is in Sylhet for the first time. Today's match is Sylhet Sixers vs the Dha...
Fair Distribution
Mr. Forhad has X children. One day, on his way home, he bought Y chocolates for his children. He doe...
ICPC Is Coming in Hot!
Tanmoy is an ACM ICPC contestant. During practice he came across a problem named ‘OWLLEN’. He has ha...
Goat Research
Goats are interesting creatures. They are incredibly durable and can fall from great heights, be str...
Grid'y Rotations
Consider an M×N grid of numbers and then a series of (r,c) pairs. Each (r,c) pair corresponds to a p...
Cash Change
You have an unlimited number of cash notes of the following denominations: 1, 5, 10, 50, 100, 500. G...
Closest Pair
You will be given N pair of coordinates on a 2D space. You will determine distance between the close...
Black or White
Imagine an infinite chess board. The cell on the bottom-left most corner is labelled (0,0). The cell...
Fibonacci Between
Given two numbers L and R, you must print all the Fibonacci numbers between L and R (inclusive). Alt...
Don't Shout
It is well known on the Internet that you shouldn’t type in all caps. YOU SHOULDN’T. On the Internet...
How Many X's?
Given a string with only X’s you have to print how many X’s there are.
Imagine a Graph 1
Imagine a graph of infinite nodes labelled with positive integers from 1 to ∞. Take every pair of no...
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