I am not getting Chef and Street Food question can anyone explain me

contensr 2 1 question

PROBLEM IS SIMPLE ! IT EXPLAINS THAT THERE ARE N STREET FOODS DENOTED BY
i ∈ {1,2,…N} . NOW FOR EACH “i” THERE ARE THREE INPUT Si= No. OF STORES SELLING i th FOOD
Pi= No OF PEOPLE THAT BUY THAT FOOD AND Vi = COST OF FOOD…
NOW U JUST NEED TO FIND THE MAX PROFIT STAGE CONSIDERING EQUAL DIVISION OF PEOPLE TO EACH SHOP…
Here is link to my solution:
https://www.codechef.com/viewsolution/29163886

thanks got it