Question

我对编程完全陌生，我目前正在参加编程课程。我需要调整以下代码以允许未指定数量的正整数。我已经看了这个，似乎没有正确的平均值。请帮忙。谢谢。

    #include <stdio.h>

    int main ()
    {
    /* variable definition: */
    int count, value, sum;
    double avg;
    /* Initialize variables */
    count = 0;
    sum = 0;
    avg = 0.0;
    // Loop through to input values
    while (count < 20)
    {
    printf("Enter a positive Integer\n");
    scanf("%d", &value);
    if (value >= 0) {
        sum = sum + value;
        count = count + 1;
    }
    else {
         printf("Value must be positive\n");
    }
    }
    // Calculate avg. Need to type cast since two integers will yield an                                          
    // integer 
    avg = (double) sum/count;
    printf("average is %lf\n ", avg );
    return 0;
    }

Answer 1

您可以使用无限循环并检查负值和for(;;) { printf("Enter a positive Integer\n"); if(scanf("%d", &value) == 1 ) { if (value >= 0) { sum = sum + value; count = count + 1; } else { printf("Value must be positive\n"); break; } } else { break; } }的返回结果作为中断条件。

示例代码如下：

    int count = 0, value = 0, sum = 0;
    double avg = 0;

此外，您的初始化代码是可以的，但可以通过这种方式更清洁（不需要在声明和初始化之间分开 - 您可以将它们分成一行）：

function getGroups{

    $Groups += Get-ADGroup -Filter * -SearchBase "ou=Groups,ou=DCM,ou=NTG,dc=prod,dc=main,dc=ntgov" | Select-Object -ExpandProperty samaccountname

    return $Groups
}

Measure-Command{ 


$Groups = getGroups
write-host "Groups:" $Groups.Count 

}

Measure-Command{



$date = $(get-date).ToString("dd MMM yyyy")
$global:FileName = "Active Directory Group Membership - DCM -" + $date

$stringBuilder = New-Object System.Text.StringBuilder

foreach ($GroupName in $Groups){

        Get-ADGroupMember -Identity $GroupName | Sort-Object $_.SamAccountName | ForEach-Object {
            $ParentGroupName = (Get-ADGroup -Identity $GroupName).SamAccountName 
            $MemberName = $_.SamAccountName # Member of the Group.


            if ($_.ObjectClass -eq 'group') {



                $DisplayName = ' - '

            } elseif ($_.ObjectClass -eq 'user') {


                $a = (Get-ADUser -Identity $MemberName -Properties Displayname)
                $DisplayName = $a.DisplayName 

            }



            $null = $stringBuilder.Append("$ParentGroupName, $MemberName, $DisplayName")


        }
    } 


outputArray = $stringBuilder.ToString()


out-file C:\Users\augut\Desktop\$FileName.csv


outputArray | out-file C:\Users\augut\Desktop\$FileName.csv
}

如何调整此代码以允许未指定数量的正整数

1 个答案: