C / C++ / MFC

int main()
{
	int start = clock();
	double result;
	//<...>
	for (size_t i = 1; i < 100000000; i++)
	{
		result = sin((i * 25) / i * i);
	}
	//<...>
	int end = clock();//Now check what amount of ticks we have now. 
	//To get the time, just subtract start from end, and divide by CLOCKS_PER_SEC.
	std::cout << "it took " << end - start << "ticks std::endl;
}

using System.Diagnostics;

class TestClass
{
    static void Main(string[] args)
    {
        Stopwatch sw = new Stopwatch();
        double result;

        sw.Start();
        {
            for (int i = 1; i < 100000000; i++)
            {
                result = Math.Sin((i * 25)/i * i);
            }
        }
        sw.Stop();
        Console.WriteLine(sw.ElapsedMilliseconds.ToString());
    }
}

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#include <iostream>
using namespace std;

bool checkSquareNumber(int num)
{
    int i=0;
    while(i*i <= num)
    {
        if(i*i==num)
            return true;
        i++;
    }
    return false;
}
int squareNumber(int num)
{
    int i=0;
    while(i*i <= num)
    {
        if(i*i==num)
            return i;
        i++;
    }
    return i;
}
int numberOfStep(int num)
{
    int cnt =0;
    int i =0;
    while(num)
    {
        if(checkSquareNumber(num)== true)
            {
                num = squareNumber(num);
                cnt++;
            }
        else if(num%3==0)
        {  
            num = num/3;
            cnt++;
        }
        else if(num%2==0) 
        {   
            num/=2;
            cnt++;
        }
        else  
        {
            num--;
            cnt++;
        }
    }
    return cnt;
}
int main()
{
    int num,t;
    cin>>t;
    while(t--)
    {
        cin>>num; 
        cout<<numberOfStep(num)<<endl;
    }
    return 0;
}