package com.ricky.www;
public class Test{
  public static void main(String args[]){
    int z = 0;
    for(int x = 0 ; x < 100 ; x ++){
      for(int y = 0 ; y < 100 ; y ++){
        z = 100 - x - y;
        if((3 * x + 5 * y + 0.5 * z) == 100){
          System.out.println("当x = " + x + " y = " + y + " z = " + z + "时候等式成立.");
        }
      }
    }
  }
}

package com.algorithm;

public class FormulaXyz
{
    public static void main(String[] args)
    {
        Integer x = Integer.MIN_VALUE;
        Integer y = Integer.MIN_VALUE;
        Integer z = Integer.MIN_VALUE;
        
        // I want to calculate the time to execute this algorithm
        long startTime = System.currentTimeMillis();
        
        for (x = Integer.MIN_VALUE; x < Integer.MAX_VALUE; x++)
        {
            for (y = Integer.MIN_VALUE; x < Integer.MAX_VALUE; x++)
            {
                for (z = Integer.MIN_VALUE; x < Integer.MAX_VALUE; x++)
                {
                    if (x + y + z == 100 && 3*x + 5*y + 0.5*z == 100)
                    {
                        System.out.println("Bingo, formula solved, we have found x,y,z:");
                        System.out.println("x = " + x);
                        System.out.println("y = " + y);
                        System.out.println("z = " + z);
                    }
                }
            }
        }
        
        long stopTime = System.currentTimeMillis();
        
        System.out.println("Time to execute this program takes: " 
                + (stopTime - startTime) + "milliseconds");
    }
}