电费计算程序
给定一个整数 U 表示用电量的千瓦时单位，任务是借助以下费用计算电费:
- 1 to 100 units–
- 100 to 200 units–
- 200 to 300 units–
- More than 300 units–
例:
输入: U = 250 输出: 3500 说明: 前 100 台收费–10 * 100 = 1000 100 至 200 台收费–15 * 100 = 1500 200 至 250 台收费–20 * 50 = 1000 总电费= 1000 +以上
做法:思路是识别其所属的收费条，然后根据上述收费计算账单。以下是步骤说明:
- 检查消耗的单位是否小于等于 100，如果是，则总电费为:
- 否则，如果检查消耗的单位小于等于 200，如果是，则总电费将为:
- 否则，如果检查消耗的单位小于等于 300，如果是，则总电费将为:
- 否则，如果检查消耗的单位大于 300，如果是，则总电费为:
以下是上述方法的实现:
C++
// C++ implementation to calculate the
// electricity bill
#include<bits/stdc++.h>
using namespace std;
// Function to calculate the
// electricity bill
int calculateBill(int units)
{
// Condition to find the charges
// bar in which the units consumed
// is fall
if (units <= 100)
{
return units * 10;
}
else if (units <= 200)
{
return (100 * 10) +
(units - 100) * 15;
}
else if (units <= 300)
{
return (100 * 10) +
(100 * 15) +
(units - 200) * 20;
}
else if (units > 300)
{
return (100 * 10) +
(100 * 15) +
(100 * 20) +
(units - 300) * 25;
}
return 0;
}
// Driver Code
int main()
{
int units = 250;
cout << calculateBill(units);
}
// This code is contributed by spp____
Java 语言(一种计算机语言，尤用于创建网站)
// Java implementation to calculate the
// electricity bill
import java.util.*;
class ComputeElectricityBill {
// Function to calculate the
// electricity bill
public static int calculateBill(int units)
{
// Condition to find the charges
// bar in which the units consumed
// is fall
if (units <= 100) {
return units * 10;
}
else if (units <= 200) {
return (100 * 10)
+ (units - 100)
* 15;
}
else if (units <= 300) {
return (100 * 10)
+ (100 * 15)
+ (units - 200)
* 20;
}
else if (units > 300) {
return (100 * 10)
+ (100 * 15)
+ (100 * 20)
+ (units - 300)
* 25;
}
return 0;
}
// Driver Code
public static void main(String args[])
{
int units = 250;
System.out.println(
calculateBill(units));
}
}
Python 3
# Python3 implementation to calculate the
# electricity bill
# Function to calculate the
# electricity bill
def calculateBill(units):
# Condition to find the charges
# bar in which the units consumed
# is fall
if (units <= 100):
return units * 10;
elif (units <= 200):
return ((100 * 10) +
(units - 100) * 15);
elif (units <= 300):
return ((100 * 10) +
(100 * 15) +
(units - 200) * 20);
elif (units > 300):
return ((100 * 10) +
(100 * 15) +
(100 * 20) +
(units - 300) * 25);
return 0;
# Driver Code
units = 250;
print(calculateBill(units));
# This code is contributed by Code_Mech
C
// C# implementation to calculate the
// electricity bill
using System;
class ComputeElectricityBill{
// Function to calculate the
// electricity bill
public static int calculateBill(int units)
{
// Condition to find the charges
// bar in which the units consumed
// is fall
if (units <= 100)
{
return units * 10;
}
else if (units <= 200)
{
return (100 * 10) +
(units - 100) * 15;
}
else if (units <= 300)
{
return (100 * 10) +
(100 * 15) +
(units - 200) * 20;
}
else if (units > 300)
{
return (100 * 10) +
(100 * 15) +
(100 * 20) +
(units - 300) * 25;
}
return 0;
}
// Driver Code
public static void Main(String []args)
{
int units = 250;
Console.WriteLine(calculateBill(units));
}
}
// This code is contributed by spp____
java 描述语言
<script>
// Javascript implementation to calculate the
// electricity bill
// Function to calculate the
// electricity bill
function calculateBill(units)
{
// Condition to find the charges
// bar in which the units consumed
// is fall
if (units <= 100)
{
return units * 10;
}
else if (units <= 200)
{
return (100 * 10)
+ (units - 100)
* 15;
}
else if (units <= 300)
{
return (100 * 10)
+ (100 * 15)
+ (units - 200)
* 20;
}
else if (units > 300)
{
return (100 * 10)
+ (100 * 15)
+ (100 * 20)
+ (units - 300)
* 25;
}
return 0;
}
// Driver Code
var units = 250;
document.write(calculateBill(units));
// This code is contributed by Khushboogoyal499
</script>
Output:
3500
时间复杂度:0(1)
辅助空间:0(1)
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