numeric lab

#include<bits/stdc++.h>
using namespace std;
void bin(int temp)
{
    int n,i=0,j,x,a[100];
    n=temp;
    while(n!=0)
    {
        x=n%2;
        n=n/2;
        a[i] = x;
        i++;
    }
    for(j=i-1; j>=0; j--)
    {
        cout << a[j];
    }

    cout << endl;
}
void octal(float temp)
{
    int n,z,i=0,j,x,a[100],b[100];
    n=temp;
    float y = temp-n;
    while(n!=0)
    {
        x=n%8;
        n=n/8;
        a[i] = x;
        i++;
    }
    cout << "Integral: ";
    for(j=i-1; j>=0; j--)
    {
        cout << a[j];
    }
    int k=0;
    while(z!=8)
    {
        z = y*8;
        b[k] = z;
        y = y-z;
        k++;
    }
    cout << "Fraction: ";
    for(j=0; j<=k; j++)
    {
        cout << b[j];
    }
    cout << endl;
}
void hex(int temp)
{
    int n,i=0,j,x,a[100];
    n=temp;
    while(n!=0)
    {
        x=n%16;
        n=n/16;
        a[i] = x;
        i++;
    }
    for(j=i-1; j>=0; j--)
    {
        if(a[j] == 10)
            cout << "A";
        else if(a[j] == 11)
            cout << "B";
        else if(a[j] == 12)
            cout << "C";
        else if(a[j] == 13)
            cout << "D";
        else if(a[j] == 14)
            cout << "E";
        else if(a[j] == 15)
            cout << "F";
        else
            cout << a[j];
    }
    cout << endl;
}
int main()
{
    int op;
    float n;
    cout << "Decimal to non-decimal" << endl;
    while(1)
    {
        cout << "Enter option: ";
        cin >> op;
        if(op == 1)
        {
            cin >> n;
            cout << "Binary: "<< endl;
            bin(n);
        }
        if(op == 2)
        {
            cin >> n;
            cout << "Octal: "<< endl;
            octal(n);
        }
        if(op == 3)
        {
            cin >> n;
            cout << "Hexadecimal: "<< endl;
            hex(n);
        }
    }

    return 0;
}