CS 151: Lab 1 problems 

Probem 1: Write a program to input the length, width and depth of a rectangular 
swimming pool and calculate the time it takes to fill it. Assume that the rate 
of the flow of water into the pool is 70 gallons per minute, and a cubic foot of 
water has a capacity of 7.48 gallons. 

Constants that we need:

    FlowRate = 70
    Capacity = 7.48

Input:

    length, width, depth (assume these are integers)

Output:

    TimeInMin

Formulas that we need:

    volume = length * width * depth
    poolCapacity = Capacity * volume
    timeInMin = poolCapacity / FlowRate

Therefore, we also need to declare volume and poolCapacity as variables where we 
will store intermediate results.


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Problem 2: Given the length and the width of a rectangular yard, and the length 
and the width of a rectangural house situated in this yard, write a program to 
compute the time required to cut the grass at the rate of 2 square meters per 
second. Assume that all input data are given in yards.

Constants that we need:

    YardsToMeters = 0.8

Input:   
 
    yardWidth, yardLength, houseWidth, houseLength (assume these are integers)

Output:

    time needed to cut the grass, timeInMin

Formulas that we need:

   yardArea = yardWidth * yardLength
   houseArea = houseWidth * houseLength
   grassArea = yardArea - houseArea
   grassAreaInSqM = grassArea * YardsToMeters
   timeInSec = grassAreaInSqM / 2
   timeInMin = timeInSec / 60

Therefore, we also need to declare the following variables: yardArea, houseArea, 
grassArea, grassAreaInSqM, timeInSec, where we will store intermediate results.