Thread: Need help!!!

so i was given the assignment where i am suppose to use the random number generator to simulate dice throws and also calculate the probability of the dice landing on a specific facevalue.

Here is my program....

/* put this in a program */

Code:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#define MAX 6 /* symbolic constant */

int main()
{
 int faceValue = 0 ;
 float probability[MAX] = {0} ;
 int run = 0 ;
 int counter = 0 ;

 srand(time(0));/*random number generator*/

 printf("How many times do you want to throw the die? \n");
 scanf("%d",&run);

 faceValue = rand() % 6 + 1;

 switch(faceValue){
    case 1:
       faceValue == 1;
       break;
    case 2:
       faceValue == 2;
       break;
    case 3:
       faceValue == 3;
       break;
    case 4:
       faceValue == 4;
       break;
    case 5:
       faceValue == 5;
       break;
    case 6:
       faceValue == 6;
       break;
     }

   for (counter =1; counter <= MAX; counter++)
    {
       printf(" The probability for number %d is %0.2f %\n", counter, (probability[counter]/12)* 100);

    }
      return 0;

}

the problem is when i compile i don't get the calculations correct for the probability....could someone please point me to the write direction cause i do not no where to go from here

1)
Your switch statement makes no sense. The variable being tested is faceValue, so let's say faceValue is 5:

Now at case 5, you compare faceValue to 5 ?? Of course it's five, that's how your code got to this line!

And please DON'T assign faceValue to 5 either, because faceValue ALREADY IS five (or whatever number).

You need another variable to be altered in the switch statement, not faceValue.

2) You need a for loop wrapped around the switch statement, starting right after the prompt "How many times do you want to throw the dice?"

Code:

for(i = 0; i < throws_wanted; i++)   {

   //other code for the throw here

   //switch statement here
 
} //end of for 

//print up probabilities for all the throws here.