Question

How to use llround() function to round nearest long long integer value in C++

Answer 1

#include <iostream>
#include <cmath>

using namespace std;

int main()
{
	cout << "llround(3.3) = " << llround(3.3) << endl;
	cout << "llround(3.5) = " << llround(3.5) << endl;
	cout << "llround(4.5) = " << llround(4.5) << endl;
	cout << "llround(4.6) = " << llround(4.6) << endl;
	cout << "llround(-3.3) = " << llround(-3.3) << endl;
	cout << "llround(-3.5) = " << llround(-3.5) << endl;
	cout << "llround(-4.5) = " << llround(-4.5) << endl;
	cout << "llround(-4.6) = " << llround(-4.6) << endl;

	return 0;
}

/*
run:

llround(3.3) = 3
llround(3.5) = 4
llround(4.5) = 5
llround(4.6) = 5
llround(-3.3) = -3
llround(-3.5) = -4
llround(-4.5) = -5
llround(-4.6) = -5

*/

 

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