C :

#include <stdio.h>
int main()
{
	int n;
	double m=0;
	scanf("%d",&n);

	if(n>1000000)
	{
		m += (n-1000000)*0.01;
		n = 1000000;
	}
	if(n>600000)
	{
		m += (n-600000)*0.015;
		n = 600000;
	}
	if(n>400000)
	{
		m += (n-400000)*0.03;
		n = 400000;
	}
	if(n>200000)
	{
		m += (n-200000)*0.05;
		n = 200000;
	}
	if(n>100000)
	{
		m += (n-100000)*0.075;
		n = 100000;
	}
	m += n*0.1;
	printf("%d\n",(int)m);
	return 0;
}

C++ :

#include<iostream>
using namespace std;
int main()
{
    int m,n;
    cin>>n;
    if(n<=100000)
    m=n*0.1;
    else if(n<=200000)
    m=10000+(n-100000)*0.075;
    else if(n<=400000)
    m=10000+7500+(n-200000)*0.05;
    else if(n<=600000)
    m=10000+7500+10000+(n-400000)*0.03;
    else if(n<=1000000)
    m=10000+7500+10000+6000+(n-60000)*0.015;
    else m=10000+75000+10000+6000+6000+(n-1000000);
    cout<<m;
    return 0;
}

Java :

import java.util.Scanner;

public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		final int n = 100000;
		
		Scanner input = new Scanner(System.in);
		
		int N = input.nextInt();
		int award = 0;
		switch(N/n){
		    case 0 : award = N/10; break;
		    case 1 : award = n/10 + (N - n)*75/1000; break;
		    case 2 : ;
		    case 3 : award = n/10 + n*75/1000 + (N - 2*n)/20; break;
		    case 4 : ;
		    case 5 : award = n/10 + n*75/1000 + 2*n/20 + (N - 3*n)*3/100; break;
		    case 6 : ;
		    case 7 : ;
		    case 8 : ;
		    case 9 : award = n/10 + n*75/1000 + 2*n/20 + 2*n*3/100 + (N - 5*n)*15/1000; break;
		    default : award = n/10 + n*75/1000 + 2*n/20 + 2*n*3/100 + 4*15/1000 + (n-9*n)/1000; break;
		}
		System.out.println(award);
		input.close();
	}
	
	

}

Python :

a = map(lambda x:int(x), raw_input().split())
x = r = a[0]
listt = [100000,200000,400000,600000,100000]
listt2 = [0.1,0.075,0.05,0.03,0.015,0.01]
prize = 0
i = 0
while i < 5 :
    x -= listt[i]
    if x < 0:
        x += listt[i]
        prize += x * listt2[i] 
        break
    prize += listt[i] * listt2[i]
    i += 1
    if i == 5:
        prize += x * listt2[i]
print int(prize)