Introduction to Computer Science - Fall 2009
CSCI 151
Lab 8
  
Objectives:
increment and decrement operators
assignment operators for abbreviating assignment expressions
loop for
types int, float, double
logic operators
compiling and executing C code.   
Only Lab Practice Today
  • Create a new directory lab8 under your CSCI151 directory
  • Save all your work in the directory lab8
    1. Program 1
      • Write a program that reads one float number and one integer number. The program prints the float number the amount of time that equals to the input integer numbers. You have to use loop WHILE to solve this problem.
      • Compile and run your program.
      • Show me the program
    2. Program 2
      • Write a program sumPositiveEven.c that first reads one positive integer that will indicate an amount of input integer number that will come after that. The program will read the series of the integer numbers (amount of integer numbers will be equal to the first input number) and will find the sum of the positive even input numbers.
        Fore example is the input was 5, 3, -2, 4 -5 6 the program should output 10 (explanation: there are 2 even positive numbers, 4 and 6, their sum is 10), the first input number, 5, indicates the amount of the input numbers that will be entered after that number. Your program should use loop WHILE
      • Compile and run your program. Show me the result

    3. Program 3
      • Write a program SumProduct.c that sums and products a sequence of integers. Assume that the first integer read with scanf specifies the number of values remaining to be entered. For example if the input was 4 1 4 2 3, where 4 indicates that subsequent four values are to be summed and multiplied. The output should be
        sum equals 10
        product equals 24
        Your program should use loop WHILE
      • Compile and run your program a few times
      • Show me the result
    4. Program 4
      • Write a program DivThreeOdd.c that inputs a series of non-negative integers, a first negative integer indicates the end of the input sequence. Assume that the input is not empty. The program determines and prints the amount of input numbers that are ODD and divisible by 3 and their average.
        Your program should use loop WHILE .
      • compile and run your program to test your results.
      • Show me the result
      Have a good evening.