Question

Need help on C Programming

Answer 1

Imagine a turtle crawling around aimlessly so that it turns to the left or to the right (by 90 degrees) and then walks forward 25 units exactly 100 times. Create a flowchart or write pseudocode for accomplishing this dizzying task.

Answer 2

@jango_IN_DTOWN

Answer 3

Have you worked this one out?

Answer 4

I have to use these for choosing the random movement of going left or right:
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main(void) {
srand(time(NULL)); /* Seed the random number generator */
`int answer = rand() % 100 + 1; /* Randomly select a number */` this can be changed

Answer 5

Nope. I am confused on how I can make the computer choose randomly whether to go left/right.

Answer 6

you dont have to create a program, it said to create flowchart or pseudocode

Answer 7

But I was thinking of assigning left a number and right another number. For example left = 0 and right = 1. Then I can perhaps use:
int answer = rand() % 100 + 1; /
to order to randomly select a number

Answer 8

Well in another part it says for me to implement the flowchart or pseudocode by writing it out as a C program

Answer 9

It will be better if you post this question in computer science portion, I will be studying string functions in a later course. Right now I am not acquainted with it properly. I know those portions of C in which numerical methods are involved in mathematics

Answer 10

I am honestly not so sure about string functions myself. My teacher just said to use that whenever we're asking the computer to choose something random.

Answer 11

For example, let's say we have `int n`
Can I say `int n = rand() % 2;`
I learned that when choosing the random numbers n will subtract 1. Therefore, by choosing 2 and subtracting 1 I will get the number 1. And I designated that left = 0 and right = 1

Answer 12

ok, so when you declare int n, it will takes integer values only and since you operate modulus by 2, it will have answers 0 or 1, nothing else. This part is correct

Answer 13

OK

Answer 14

So can we start creating the program?

Answer 15

But how do you show the turtle moves 25 units 100 times, I am not familiar with this stuff

Answer 16

I guess with while loop?

Answer 17

we can use this perhaps?

while (time=100)
{
turtle_forward(25);
}

Answer 18

Your program worked?

Answer 19

I am still writing it. It's almost done

Answer 20

Good

Answer 21

How do I move a file from one directory to the other?

Answer 22

I accidentally wrote my program one directory "experiments" but it's supposed to be in another one named "turtle"

Answer 23

GO in the directory you wrote, find the file name. It will have the extension .CPP. Just copy and paste it

Answer 24

in the required directory

Answer 25

OK did it !

Answer 26

paste the program code here..

Answer 27

I accidentally deleted while compiling it!

Answer 28

you type ctrl and v at once

Answer 29

it will be back

Answer 30

It's not working

Answer 31

undo option not working?

Answer 32

Nope!

Answer 33

then you have to work it out again...

Answer 34

Yeah I guess so. Just give me like 5 minutes plz

Answer 35

ok sure.:)

Answer 36

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "turtle.h"

int main(void)
{
int times;

srand(time(NULL));
while (times<=100)
{
int left_or_right = rand() % 2;
if (left_or_right==1)
{
turtle_turn_left(90);
}
else
{
turtle_turn_right(90);
}

turtle_forward(200);
times++;
}

turtle_save_bmp("drawing.bmp");
turtle_cleanup();

return 0;
}

Answer 37

When I try to run it Preview says that the file cannot be opened

Answer 38

#include<turtle.h>

Answer 39

they say it needs to be
#include "turtle.h"

Answer 40

wait a bit, I dont know about drawing.. Which book are you reading?

Answer 41

What do you mean by what book I am reading?

Answer 42

I mean, reference book, which you follow to learn C++

Answer 43

It's an elective class I am taking at my school

Answer 44

So you dont read from any other refenrence book? /i am not acquainted with drawing in C++

Answer 45

This is supposed to be only C

Answer 46

Yeah, C or C++ you may use same software package, only a few commands are different

Answer 47

OK thank you for helping though :)