Help me in solving ZCO14003 problem

help
,
1

My issue

how the revenue is calculated on the basis of budget. we does not given the price of smartphone

My code

#include <iostream>
using namespace std;

int main() {
	int n;
	int a,b,c,d;
	scanf("%d",&n);
	for(int i=0;i<n;i++){
	    scanf("%d%d%d%d",&a,&b,&c,&d);
	}
	return 0;
}

Problem Link: CodeChef: Practical coding for everyone

2

@neeraj1305
plzz refer this solution for better understanding of the logic.
This is my c++ code but its easy to understand.

#include <bits/stdc++.h>
using namespace std;

int main() {
	// your code goes here
	long long int n;
	cin>>n;
	long long int a[n];
	for(int i=0;i<n;i++)
	{
	    cin>>a[i];
	}
	sort(a,a+n);
	long long int mn=0;
	for(int i=0;i<n;i++)
	{
	    mn=max(mn,a[i]*(n-i));
	}
	cout<<mn<<endl;
	return 0;
}