5.22 3.1

Posted 2023-05-22 yindantong

一、问题描述

求某一范围内完数的个数。
如果一个数等于它的因子之和，则称该数为“完数”(或“完全数”。例如，6 的因子为1，2，3，而6=1+2+3，因此6是“完数”。

二、分析

for(i=2;i<=n;i++)

....

for(j=l;j<i;j++)

...

if(s==i)
输出当前i是完数

三、代码

#include<iostream>
using namespace std;
int mian()

int i,j,s,n;
cout<<"请输入所选范围上限：";
cin>>n;
for(i=2;i<=n;i++)

s=0;
for(j=1;j<i;j++)

if(i%j==0)
s+=j;

if(s==1)
cout<<"It\'s aperfect number:"<<i<<endl;

四、结果

 

Android Studio - Cannot reload AVD list (d:skin)

问题描述：

I‘m trying to get google maps on an application on my android device. I was testing how it works so i started with adding a simple map. However when i try to run it it gives me this error.

Cannot reload AVD list: cvc-complex-type.2.4.d: Invalid content was found starting with element ‘d:skin‘. No child element is expected at this point. Error parsing /Applications/Android Studio.app/sdk/system-images/android-22/android-wear/armeabi-v7a/devices.xml cvc-complex-type.2.4.d: Invalid content was found starting with element ‘d:skin‘. No child element is expected at this point. Error parsing /Applications/Android Studio.app/sdk/system-images/android-22/android-wear/x86/devices.xm

 

解决方式：

   点击工具栏上的 SDK Manager  ---- 找到Android Wear ARM 和   Intel images 选项， 选中删除即可 ！