New to c++ ,paint costs code coach

Question

#include <iostream>
#include <math.h>
using namespace std;

int main() {
int a;
cin>>a;
cout <<round((40+5*a)*1.1);
return 0;
}
Failing in last test case
( In python I did the same way and passed)

Answer 1

Prabhas Koya

It returns integral value but as a floating-point value but need as a integer so we need to cast with int or you can assign result to int then print int value.

int d = round((40 + 5 * a) * 1.1);

cout << d;

here is round function in c++:

double round (double x);
float round (float x);
long double round (long double x);
double round (T x);

Answer 2

Prabhas Koya

Cast with int

cout << int(round((40 + 5 * a) * 1.1));

Answer 3

A͢J - S͟o͟l͟o͟H͟e͟l͟p͟e͟r͟
Doesn't round produce an integral value