(Project Euler, problem 2)
Determine the sum of all even Fibonacci numbers that are less than 4,000,000.
Write a program that reads a string on a single line and prints "vowels" if the string contains any vowels, otherwise "no vowels".
Read a string and print it backwards.
Enter string: zyzzyva avyzzyz
Read a string and write it out with a space between each adjacent pair of characters.
Enter string: waffle w a f f l e
Read a string and print 'double' if any two adjacent characters are the same, or 'nothing' otherwise.
Enter string: abacuses nothing === Enter string: lionesses double
Write a program that reads a string and capitalizes all words in the string. For this exercise, words are sequences of characters separated by one or more spaces. Do not use the built-in method title(), which does the same thing.
Enter string: one fine day One Fine Day
Write a program that reads a series of lines, terminated by ctrl+D or ctrl+Z. The program should print the lines out in reverse order.
Each card in a standard deck has a rank (2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen, King, or Ace) and a suit (clubs, diamonds, hearts, or spades).
Write a program that prints a random card such as "9 of hearts" or "king of spades".
Write a program that generates a random password with 10 lowercase letters. The password should contain alternating consonants and vowels.
Sample outputs:
kimolonapo ritilenora
Write a program that reads two string S and T, each on its own line. The program should print the string that is lexicographically greater, i.e. the string that appears later in dictionary order. Do not use the built-in string comparison operator '>'.
Enter S: limerick Enter T: limeade limerick
Write a program that reads a string and makes all lowercase
letters uppercase without using the library function upper.
Sample input:
100 Spires and Towers
Sample output:
100 SPIRES AND TOWERS
Write a program that reads a month and day, and prints a number from 1 to 365 representing a day of the year. Assume that the current year is not a leap year. For example:
Enter month: 3 Enter day: 7 Day number: 62
Explanation: March 7th is the 66th day of the year, since there are 31 days in January and 28 days in February, and 31 + 28 + 7 = 66.