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In this program i am trying to find numbers that are multiples of 7,11, or 13,

also if the total of the numbers is even or odd

also the square root value of each number

also if there are any prime numbers in the list

```
#include<iostream>
#include<iomanip>
#include<fstream>
#include<cmath>
#include<conio.h>
// Associating program identifiers with external file names
#define in_file "data.txt"//input file name
#define out_file "result.txt"//output file name
using namespace std;
void multiple(int);
void even_odd(int);
void square_root(double);
void prime(int);
int temp_a;
double temp_c;
int total;
int num;
ifstream ins;// associates ins as an input stream
ofstream outs;// associates outs as an output stream
int main()
{
ins.open(in_file);// associates ins as an input stream
outs.open(out_file);// associates outs as an output stream
multiple(temp_a);
even_odd(total);
square_root(temp_c);
prime(num);
ins.close();// closing input file
outs.close();// closing output file
return 0;
}
void multiple(int temp_a)//function to find multiples(7, 11, 13)
{
int a=7;
int b=11;
int c=13;
int m7, m11, m13;
while(!ins.eof())
{
ins>>temp_a;
if(temp_a>-1)
{
m7=temp_a%a;
m11=temp_a%b;
m13=temp_a%c;
if((m7==0)&&(m11!=0)&&(m13!=0))
outs<<temp_a<<" is a multiple of 7."<<endl;
else if((m11==0)&&(m7!=0)&&(m13!=0))
outs<<temp_a<<" is a multiple of 11."<<endl;
else if((m13==0)&&(m11!=0)&&(m7!=0))
outs<<temp_a<<" is a multiple of 13."<<endl;
else if((m7==0)&&(m11==0)&&(m13!=0))
outs<<temp_a<<" is a multiple of 7 and 11."<<endl;
else if((m11==0)&&(m13==0)&&(m7!=0))
outs<<temp_a<<" is a multiple of 11 and 13."<<endl;
else if((m7==0)&&(m13==0)&&(m11!=0))
outs<<temp_a<<" is a multiple of 7 and 13."<<endl;
else if((m7==0)&&(m11==0)&&(m13==0))
outs<<temp_a<<" is a multiple of 7, 11, and 13."<<endl;
else
outs<<temp_a<<" is not a multiple of 7, 11, or 13."<<endl;
}
ins>>temp_a;
}
outs<<endl;
}
//problem with this function!!!!!
void even_odd(int total)//function to find it total is even or odd
{
int p;
while(!ins.eof())
{
ins>>total;
total+=total;
}
cout<<total<<endl;
p=total%2;
if(p==0)
outs<<"Even"<<endl;
else
outs<<"Odd"<<endl;
getch();
}
void square_root(double temp_c)//function to find square root
{
while(!ins.eof())
{
ins>>temp_c;
if(temp_c>0)
outs<<sqrt(temp_c)<<endl;
}
}
void prime(int num)//function t find prime numbers
{
while(!ins.eof())
{
ins>>num;
bool isPrime=true;
for ( int j = 2; j <num; j++)
{
if ( num % j == 0 )
{
isPrime=false;
break;
}
}
if (isPrime)
{
outs<<num<<" is a prime number."<<endl;
}
isPrime=true;
}
}
```

the only function that isnt working propery is the void even_odd() function, i dont know whats wrong with it, its pretty simple so how is it messing up??

another problem is that it will do everytihng for the first function properly, but it doesnt start doing everytihng for the next function? it should do all the steps in void multiple then move on to the next function, but its not, and i tihnk im just missing someithng to make it do that but im not sure what it is because i ahve no idea what to look for or whats its called?