Practice - 022

A program to calculate electricity bill by reading units consumed

use text_io::scan;

/**
 * Units >= 250 - Flat charge 1000$
 * 150 <= Units < 250 - Charge = 200 + units*1.50
 * 100 <= Units < 150 - Charge = 100 + units*1.00
 *  50 <= Units < 100 - Charge =  50 + units*0.50
 *        Units <  50 - Flat charge 10$
 */

fn main() {
    practice22()
}

fn practice22() {
    let units_consumed: i32;
    let bill: f32;

    println!("Enter the number of units consumed:");
    scan!("{}", units_consumed);

    if units_consumed >= 250 {
        bill = 1000.0;
    } else if units_consumed < 250 && units_consumed >= 150 {
        bill = 200.0 + units_consumed as f32 * 1.50;
    } else if units_consumed < 150 && units_consumed >= 100 {
        bill = 100.0 + units_consumed as f32 * 1.00;
    } else if units_consumed < 100 && units_consumed >= 50 {
        bill = 50.0 + units_consumed as f32 * 0.50;
    } else {
        bill = 10.0;
    }

    println!("Amount to be paid = {}", bill);
}

Config

[package]
name = "practice"
version = "0.1.0"
edition = "2021"

[dependencies]
text_io = "0.1.12"

Result

Enter the number of units consumed:
55
Amount to be paid = 77.5