2021-07-16-C++学习笔记

原创已于 2025-04-04 14:41:56 修改 · 176 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#c++ #学习 #笔记

于 2021-07-16 01:08:28 首次发布

学习笔记同时被 2 个专栏收录

88 篇文章

订阅专栏

C++学习笔记

32 篇文章

订阅专栏

本文介绍如何修复并完善一个手机运营商的促销代码，通过输入的倍增器正确调整用户的网速。提供了一个示例输入和输出，以及完成的`promotion`函数调用，确保了带宽在促销前后计算的准确性。

You operate a mobile provider running a promotion that multiplies a user’s internet bandwidth.
Fix the program by completing the function and calling it, so that the given megabyte outputs before and after the promotion work correctly.
The multiplier is taken as input inside the multiplier function.

Sample Input
5
2

Sample Output
Before the promotion: 5
After the promotion: 10

Explanation
The first input is the count of megabytes, the second is multiplier.
The first outputted line represents the count of megabytes before the function-multiplier call, and the second one - after.

//my code
#include <iostream>
using namespace std;
//Created by Liu Chong on 2021/07/15

/*complete the function to multiple the megabytes*/
int promotion(int *m,int n) {
    
    //taking multiplier as input
    int multiplier;
    cin>>multiplier;
    *m=multiplier*n;  

    //cout<<*m<<endl;
    
    
}

int main() {
    //getting initial count of megabytes
    int megabytes;
    cin >> megabytes;
    
    //printing the count of megabytes 
    cout << "Before the promotion: " << megabytes << endl;
    
    //complete the function call
    
    promotion(&megabytes,megabytes);
    
    //printing the count of megabytes after the promotion
    cout << "After the promotion: " << megabytes<< endl;
    
    return 0;
}