This C program simulates the game “snake” which is usually available in old mobile phones. A string of characters moves on the screen according to arrow keys pressed by user. If it touches itself or screen boundary, the program terminates. When the snake moves, in arbitrary screen positions some digit (1-9) appears. The objective of the game is to make the snake eat the said digit, so that it is added to the score. When a digit is eaten, the size of the snake increases by the number of characters equal to the value of the digit.
This C program prints out the first Fibonacci series of N numbers. In mathematics, the Fibonacci numbers are a sequence of numbers named after Leonardo of Pisa, known as Fibonacci. The first number of the sequence is 0, the second number is 1, and each subsequent number is equal to the sum of the previous two numbers of the sequence itself, thus creating the sequence 0, 1, 1, 2, 3, 5, 8, etc. The standard form of writing Fibonacci series is: