Question

程序编程：求能被3整除且有一位数字为6的三位数个数

Answer 1

#include <stdio.h>
int main()
{
int sum,i,n;
n=0;

for(i=100;i<1000;i++)
{
sum=i;
if(sum%3==0)
{
if(sum%10==6)
n++;
else if(sum%100==6)
n++;
}
}

printf("能被3整除且有一位数字为6的三位数个数为：%d\n",n);
return 0;

}

答案是30个。。

Answer 2

计算结果 94 用excel vba 实现。
Private Sub CommandButton1_Click()
For i = 0 To 9
For j = 0 To 9
If (i + j) Mod 3 = 0 Then
If i = 0 Then n = n + 1 Else n = n + 3
End If
Next
Next
Cells(1, 1) = n
End Sub

Answer 3

VB code:

Private Sub Command1_Click()
Dim i, s As Integer
For i = 100 To 999
If i Mod 3 = 0 And InStr(1, CStr(i), "6") > 0 Then s = s + 1
Next
Print s
End Sub

答案是84个