obtain three times repeated values in arraylist.. how..

Turkalp Kucur

14y3.6kVisual Basic .NET

Hello my friends...

I have an arraylist les say

string[] list = new list{4,5,6,6,7,8,6,7,3,8,7,9,7 };

I want to identify the three times repeated values in arraylist list.

e.g. program will output that:

The value 6 is repeated three times..

The value 7 is repeated 4 times..

note: I don't need the whole program.. I just don't have any idea how a value is checked whether if it repeated itself three or more times....

help please....

6 Replies

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Vulpes14y ago
Accepted answer
Another approach:

using System;

class Program
{
static void Main()
{
int[] list = {4,5,6,6,7,8,6,7,3,8,7,9,7};
Array.Sort(list);
int current = list[0];
int count = 1;
for(int i = 1; i < list.Length; i++)
{
if (list[i] == current)
{
count++;
if (i < list.Length - 1) continue;
}
if (count >= 3)
{
Console.WriteLine("The value {0} is repeated {1} times", current, count);
}
current = list[i];
count = 1;
}
Console.ReadKey();
}
}
Turkalp Kucur14y ago
This handle the problem:

string kontrolet(string[] a)
{
string s = "";
foreach (string item in a)
{
int sayici = 0;
for (int i = 0; i < a.Length; i++)
{
if (item == a[i])
{
sayici++;

}


}

if (sayici == 2)
{
s="Elinizde bir ikili var.";
}
if (sayici == 3)
{
s = "Elinizde bir üçlü var.";
}
if (sayici == 4)
{
s = "Elinizde bir dörtlü var.";
}

if (sayici == 5)
{
s = "Elinizde bir besli var.";
}

}

return s;

}

Thank you!
Santhosh Kumar Jayaraman14y ago
Its because your return statement is inside if block. So What will it return if its else?
So you need to have generic return statement at the end of program after if block or create else block and return something.
Turkalp Kucur14y ago
Hello.

I wrote a function:
string kontrolet(string[] a)
{
Array.Sort(a);

int sayici = 0;

string degisken = a[0];

for (int i = 1; i < a.Length; i++)
{
if (a[i] == degisken)
{
sayici++;
if (i < a.Length - 1)
{
continue;
}

if (sayici > 2)
{
return "You have got triple value.";

}
degisken = a[i];
sayici= 1;
}}}

it says, "not all part of the code returns a value....
what can I do...
V S N Raju Kanumuri14y ago
string[] list=new list{4,5,6,6,7,8,6,7,3,8,7,9,7};
foreach (int item in list)
{
Console.Write(item.ToString() + "is repeated ");
int count = 0;
for (int i = 0; i < list.Length; ++i)
{
if (list[i] == item) ++count;
}
Console.WriteLine(count.ToString()+" times"); }
Santhosh Kumar Jayaraman14y ago
Just check this

class Program
{
static void Main(string[] args)
{
int[] list = new int[] { 4, 5, 6, 6, 7, 8, 6, 7, 3, 8, 7, 9, 7 };
var result = list.GroupBy(x => x).Where(x => x.Count() >= 3).Select(x => new { x.Key, count = x.Count() });
foreach (var item in result)
{
Console.WriteLine(item.Key + " is repeated " + item.count + " times");
}

}
}