set precision in c++ no decimal places\ code example

Example 1: how print fload wiht 3 decimal in c++

#include <iostream>
#include <cstdio>
using namespace std;

int main() 
{
    // This code helps you to print a number with desired decimal
    double Number=10.3454;
    printf("%.3lf",Number);

    return 0;
}

Example 2: set precision with fixed c++

int x = 109887;
cout << fixed << setprecision(3) << x;

Example 3: set precision in c++ no decimal places\

14049.304930000