Task

Express a number in decimal as a fixed-length string with leading zeros.



For example, the number   7.125   could be expressed as   00007.125.




#include <iostream>
#include <iomanip>
 
int main()
{
  std::cout << std::setfill('0') << std::setw(9) << std::fixed << std::setprecision(3) << 7.125 << std::endl;
  return 0;
}