1. פתרון תרגיל 11

2. שאלה #1 Module Module1 Sub Main() Dim x(10, 10) As Integer Dim i, j As Integer For i = 1 To 10 For j = 1 To 10 x(i, j) = i * j Console.Write(" " & x(i, j)) Next Console.WriteLine() Next Console.ReadKey() End Sub End Module

3. שאלה #2 Module Module1 Sub Main() Dim x(3, 3) As Integer Dim i, j As Integer Dim num As New Random() Dim sum As Integer = 0 For i = 0 To 3 For j = 0 To 3 x(i, j) = num.Next(8, 14) If i = j Or (i + j) = 3 Then sum += x(i, j) End If Next Console.WriteLine("the sum is: " & sum) Console.ReadKey() End Sub End Module

4. שאלה #2 (כמעט זהה) Module Module1 Sub Main() Dim a(3, 3) As Integer Dim i, j, sam As Integer Dim num As New Random() sam = 0 For i = 0 To 3 For j = 0 To 3 a(i, j) = num.Next(8, 13) If i = j Then sam = sam + a(i, j) ElseIf i + j = 3 Then sam = sam + a(i, j) End If Next Console.WriteLine(sam) Console.ReadKey() End Sub End Module

5. שאלה 2 (איך שאני הייתי עושה) Module Module1 Sub Main() Dim sum1, sum2, i, j, x(3, 3) As Integer Dim r As New Random sum1 = 0 sum2 = 0 For i = 0 To 3 For j = 0 To 3 x(i, j) = r.Next(8, 13) Console.Write(x(i, j) & ",") Next Console.WriteLine() Next j = 4 For i = 0 To 3 sum1 += x(i, i) sum2 += x(i, j – i) Next Console.WriteLine("the sum is: " & sum1 + sum2) End Sub End Module

6. שאלה #3 Module Module1 Sub Main() Dim i, j, x(10, 5), y(10, 5) As Integer Dim r As New Random Dim b As Boolean b = True For i = 0 To 9 For j = 0 To 4 x(i, j) = r.Next(8, 18) y(i, j) = r.Next(3, 13) If x(i, j) <= y(i, j) Then b = False End If Next If b = True Then Console.WriteLine("yes") End If Console.ReadKey() End Sub End Module

7. פתרון יותר טוב? Module Module1 Sub Main() Dim a(4, 9), b(4, 9) As Integer Dim i, j, sam As Integer Dim num As New Random() sam = 0 For i = 0 To 4 For j = 0 To 9 a(i, j) = num.Next(8, 18) b(i, j) = num.Next(3, 13) If a(i, j) > b(i, j) Then sam = sam + 1 End If Next If sam = 50 Then Console.WriteLine("yes") End If Console.ReadKey() End Sub End Module

8. שאלה #4 Module Module1 Structure student Public name As String Public i_d As String Public average As Decimal End Structure Sub Main() Dim Pupile(4) As student Dim i As Integer Dim biggest As Decimal For i = 0 To 4 Console.WriteLine("please enter a name") Pupile(i).name = Console.ReadLine() Console.WriteLine("please enter an i d number") Pupile(i).i_d = Console.ReadLine() Console.WriteLine("please enter an average number") Pupile(i).average = Console.ReadLine() Next i = 0 biggest = Pupile(0).average For i = 0 To 4 If Pupile(i).average > biggest Then biggest = Pupile(i).average End If Next i = 0 For i = 0 To 4 If biggest = Pupile(i).average Then Console.WriteLine("the name of the student is: " & Pupile(i).name) End If Next Console.ReadKey() End Sub End Module

9. שאלה #4 Module Module1 Structure student Public name As String Public tz, memoza As Integer End Structure Sub Main() Dim sham(5) As student Dim i, j As Integer Dim n As String n = " " j = 0 For i = 1 To 5 Console.WriteLine("please enter the student name " & i) sham(i).name = Console.ReadLine Console.WriteLine("please enter the student i.d " & i) sham(i).tz = Console.ReadLine Console.WriteLine("please enter the student avrage " & i) sham(i).memoza = Console.ReadLine If sham(i).memoza > j Then j = sham(i).memoza n = sham(i).name End If Next Console.WriteLine("name: " & n & " tsiun is :" & j) Console.ReadKey() End Sub End Module