PASS Week 8: Math, Random Numbers

Pastebin for KAHOOT quiz answers: https://pastebin.com/dWChiCgq













PROBLEM #1: Nested Loop Review

Construct a program that uses two nested for loops to produce 10 lines of 10
integers that shows the row and column position. The first loop represents the rows
and the nested loop represents each column in a row. The first number is the row
and the second is the column position. Your output should look something like this:

[0,0] [0,1] [0,2] [0,3] [0,4] [0,5] [0,6] [0,7] [0,8] [0,9]
[1,0] [1,1] [1,2] [1,3] [1,4] [1,5] [1,6] [1,7] [1,8] [1,9]
[2,0] [2,1] [2,2] [2,3] [2,4] [2,5] [2,6] [2,7] [2,8] [2,9]
[3,0] [3,1] [3,2] [3,3] [3,4] [3,5] [3,6] [3,7] [3,8] [3,9]
[4,0] [4,1] [4,2] [4,3] [4,4] [4,5] [4,6] [4,7] [4,8] [4,9]
[5,0] [5,1] [5,2] [5,3] [5,4] [5,5] [5,6] [5,7] [5,8] [5,9]
[6,0] [6,1] [6,2] [6,3] [6,4] [6,5] [6,6] [6,7] [6,8] [6,9]
[7,0] [7,1] [7,2] [7,3] [7,4] [7,5] [7,6] [7,7] [7,8] [7,9]
[8,0] [8,1] [8,2] [8,3] [8,4] [8,5] [8,6] [8,7] [8,8] [8,9]
[9,0] [9,1] [9,2] [9,3] [9,4] [9,5] [9,6] [9,7] [9,8] [9,9]






















PROBLEM #2: Calculating Area

Write a program that prompts the user to enter in a value for the
base of a square. Compute the area using the pow() function in the
math.h library. Print out the area of the square with a minimum
width of 8 and precision of 2 decimal places to the right.

NOTE TO Repl.it users... note the compiler commands in the Console window
uses -lm for the math linker. When executing your code on the Osprey server,
you will have to use -lm in your gcc command if you use math functions.












PROBLEM #2.5: Calculating Area of Circle

Similar to problem #2, write a program that calculates area. This time,
prompt the user for the diameter of a circle, and calculate the area of
the circle.
















PROBLEM #3: Random Number Generator

Write a program that generates a random number and prints it to the screen.
Run the program 2-3 times and observe the results.
Now add the srand() call with the time(NULL) argument to add
randomness to the numbers. YOU ONLY NEED TO CALL srand() ONCE in the program
before the rand() calls.

(Not required to complete this problem) If you want to know more on WHY random numbers need a seed, here is a link:
https://stats.stackexchange.com/questions/354373/what-exactly-is-a-seed-in-a-random-number-generator
Fair warning, there is some HEAVY math involved.





















PROBLEM #4: Random Number Generator Continued

Create a program that will generate a random set of numbers between 10 and
20 inclusively. Print the number(s) to the screen to confirm the range works.

HERE IS A GUIDE TO MAKING A RANGE:
yourRandomNumber = rand() % (max_number + 1 - minimum_number) + minimum_number























PROBLEM #5: Coin Flipping and Probability

Write a program that simulates flipping a coin 1000 times
and report the AMOUNT OF TIMES it hit heads or tails. Use a for
loop to control the random number generation and two variables
to store the heads vs tails counts.

Challenge: How could you cheat to make the heads have a 2/3 probability?