ELECTRICITY BILL- C Language

/* ELECTRICITY BILL */

#include<stdio.h>

#include<conio.h>

#include<math.h>

void main()

{

int u,y,z;

float b;

clrscr();

printf("Enter the no.of units::");

scanf("%d",&u);

if (u<=100)

{

b=u*3;

printf("The bill is%f",b);

}

else

if(u>100 && u<=200)

{

y=u-100;

b=(y*4)+300;

printf("The bill is %f",b);

}

else

{

z=u-200;

b=(z*4.5)+700;

printf("The bill is %f",b);

}

getch();

}

/************************OUTPUT***************************

Enter the no. of units::700

The bill is 2950.000000  */