I am not able to understand this code

#1

void convert(int ll, int ul,int step){

   for(int i=ll;i<=ul;i=i+step){
        int c=(int)((5.0/9)*(i-32));  

    cout<<i<<"\t"<<c<<endl; 
    }

what does void convert means

#2

whats the meaning of steps in this question

#3

hello @suryansh771
image
here first u have to read 3 numbrs.

first number is minimum fehrenheit,
second number is maximum fehrenheit,
third number is step (i,e jump that u have to take).
for example if input is 0 25 5
then u need to first convert 0 to fehrenhiet
and then 5 to fehrenhiet
and then 10 to fehrenhiet
and then 15 to fehrenhiet
and then 20 to fehrenhiet