Where it gets cut off FLUE EPIDEMIC PREDICTIONS BASED ON ELA

Where it gets cut off***

FLUE EPIDEMIC PREDICTIONS BASED ON ELAPSED DAYS SINCE FIRST CASE REPORT

Enter day number>> 7

by day 7, model predicts 5 cases total.

Enter day number>>10

by day 10, model predicts 11 cases total

enter day number>> 20

by day 20, model predicts 138 cases total

(using printf and scan f statements along with the normal #include math.h and stdio.h and such) for example it would be

printf(\"Enter day number >> \");

scanf(\"%d\", &day);

printf(\"By day %d, model preducts %d cases total\", day, cases);

An epidemic of a new strain of flu (i.e., one for which a vaccine is not available) begins with a single case on a college campus of 40,000 faculty, staff, and students. Three days later a second case is reported, and in the following days the reported cases are as shown in the table below The day of the initial case report is noted as day 0 Day # 035678910 11 Total cases 12 3 45 791115 A math professor observes that the number of cases seems to be increasing by about 28% per day and proposes the following model to predict the total number of cases by day number x: 40000 1+39999(e06i) Cases(x) = 0.2468 Write a function that implements diis model. Test your function with a main function that prompts die user diree times to enter a day number and dien calculates and displays the number of cases predicted for each day number entered Sample run FLU EPIDEMIC PREDICTIONS BASED ON ELAPSED DAYS SINCE FIRST CASE REPORTEnte

Solution

#include <stdio.h>
#include <math.h> //importing to use exp function

//declaring prototype of the function
int cases(int x);

//main method
int main(){

    //declaring variables for day and number of cases
    int day;
    int numOfCases;

    //taking input number of days from the user
    printf(\"Enter day number >> \");
    scanf(\"%d\", &day);

    //calling the function cases
    numOfCases = cases(day);

    //printing out the value of number of cases returned using the cases(day) function
    printf(\"By day %d, model preducts %d cases total.\ \", day, numOfCases);
}

//cases function
int cases(int x){

    //return the number of days in integer
    return 40000.0/(1.0+39999.0*(exp(-0.24681*x)));
}