C :

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char *argv[])
{
  int a,b;
  scanf("%d",&a);
  b=a/100000;
  switch(b)
  {
     case 0:
          printf("%.f",a*0.1); break;
     case 1:      
          printf("%.f",(a-100000)*0.75+10000); break;
     case 2:
     case 3:
          printf("%.f",(a-200000)*0.5+10000+7500); break;
     case 4:
     case 5:
          printf("%.f",(a-400000)*0.03+10000+7500+10000);break;                
     case 6:
     case 7:
     case 8:
     case 9:
          printf("%.f",(a-600000)*0.015+10000+7500+10000+6000);break;
     default:
           printf("%.f",(a-1000000)+10000+7500+10000+6000+6000); break; 
               
  }

  return 0;
}

C++ :

#include<iostream>
using namespace std;
int main()
{
	int i;
	double bonus,bon1,bon2,bon4,bon6,bon10;
	bon1=100000*0.1;
	bon2=bon1+100000*0.075;
	bon4=bon2+200000*0.05;
	bon6=bon4+200000*0.03;
	bon10=bon6+400000*0.015;
	cin>>i;
	if (i<100000) bonus=i*0.1;
	else if (i<=200000) bonus=bon1+(i-100000)*0.075;
	else if (i<=400000) bonus=bon2+(i-200000)*0.05;
	else if (i<=600000) bonus=bon4+(i-400000)*0.03;
	else if (i<=1000000) bonus=bon6+(i-600000)*0.015;
	else bonus=bon10+(i-1000000)*0.01;
	cout<<int(bonus)<<endl;
	return 0;
}