Write a program that prints the sum of all integers in the range 0 ≤ i ≤ 1,000,000 such that i is not divisible by any of the numbers {3, 5, 7}.
What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20? Either write a program to determine the answer, or compute it mathematically.
Write a program that reads a string from the console and prints "palindrome" if it is a palindrome, otherwise "not"'.
Write a program that reads a string and writes it back out, capitalizing the first letter of every word.
A hailstone sequence of integers Hi starting from any integer H1 is defined as follows: If Hi is even, then Hi + 1 = Hi / 2; otherwise Hi + 1 = 3 Hi + 1. For example, the sequence starting from H1 = 10 is 10, 5, 16, 8, 4, 2, 1, 4, 2, 1, ...
Write a program that determines and prints the first value k for which the hailstone sequence starting at k rises above 1,000,000,000.
Write a program that reads two strings S and T, each on its own line. The program should print "true" if S starts with T, "false" otherwise.
Write a program that reads an integer A and an integer B ≥ 0 and prints the value of AB. Implement exponentiation using repeated multiplication.
Write a program that reads a decimal integer and prints it out in base 2, i.e. binary.
Read a price in Czech crowns. Print out a combination of 20-Kč, 10-Kč, 5-Kč and 1-Kč coins that add up to the price, using the smallest possible number of coins.
Enter price: 67 20 Kc: 3 10 Kc: 0 5 Kc: 1 1 Kc: 2