HW 9/19/2018


1

#include<stdio.h>

#include <stdlib.h>

int roll();

int main() {

unsigned int i, n, seed,die1,die2,sum,Count=0;

double percent;

printf("Enter seed value: ");

scanf("%d", &seed);

srand(seed);

printf("Enter number of rolls of Dice: ");

scanf("%d", &n);

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

die1 = roll();

die2 = roll();

sum = die1+die2;

if (sum==8){

Count++;

}

 

}

percent=(Count)*100/n;

printf("Number of rolls: %d\n", n);

printf("Percent with sum of 8 : %4.2f %\n", percent);

return 0;

}

int roll(){

return rand()%(1) ;

}

2

#include <stdio.h>

#include <stdlib.h>

#include <math.h>

#define e 2.718282

#define pi 3.141593

int main(void) {

int n_val;

int n_val_fact(int n_val);

printf("Enter n:\n");

scanf("%d",&n_val);

while (n_val<0)

{

printf("The n value must not be negative \n");

printf("Enter the value of n:\n");

scanf("%d",&n_val);

}

printf("n! stiring approximation value about %i is %i \n",n_val,n_val_fact(n_val));

return 0;

}

int n_val_fact(int n_val)

{

if (n_val==0)

{return 0;}

else

{return (int)((sqrt(2*pi*n_val))*pow((n_val/e),n_val)+0.5);}}