Results fill in the blanks for beer and drinks

Beer per pot 2.3 element , Beverage cans 1.9 element . Xiao Ming bought some beer and drinks , A total of flowers. 82.3 element .

We also know that he buys fewer beers than drinks , Please calculate how many cans of beer he bought .

Be careful ： The answer is an integer .

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answer

11

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The problem solving process

A very regular topic , It should be noted that floating point numbers here are ：abs( actual value - The value of comparison )<1e-n .

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Attach code

#include<iostream>
#include<cmath>
using namespace std;
int main()
{
	double p_price,y_price;
	int x,y;
	for(x=0;x<=38;x++)
	{
		for(y=0;y<=44;y++)
		{
			if(x<y)
			{
				p_price=x*2.3;
				y_price=y*1.9;
				if(abs(p_price+y_price-82.3)<1e-8)
					cout<<x<<endl;
			}
		}
	}
	return 0;
}