fib faren cel ( oop lab 1) 3rd sem

#include<iostream>
#include<string.h>
using namespace std;
float farenhite(int c)
{
    float res=(c*(9.0/5.0))+32.0;
    return res;
}
float celcius(int f)
{
     float res=((f-32.0)*5.0)/9.0;
    return res;
}
int main()
{
    int n;
    cout<<"Enter n"<<"\n";
    cin>>n;
    float ar[100];
    ar[0]=0.0;
    ar[1]=1.0;
    int i;
    for(i=2;;i++)
    {
        ar[i]=ar[i-1]+ar[i-2];
        if(ar[i]>n)
            break;
    }
    int len=i;
    cout<<"Num  "<<"Farenhite  "<<"Celcius"<<"\n";
    for(i=2;i<len;i++)
    {
        int a=ar[i];
        float res1=farenhite(a);
        float res2=celcius(a);
        cout<<a<<"\t"<<res1<<"\t"<<res2<<"\t"<<"\n";
    }
}