find occurance of a number

Danish Habib

take input from users like 123234567 and then find how many times a number appear the number to find must be taken from user input ,,, show your code I want to check memory optimization for Hook up solutions

3 Replies

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Pankaj Kumar Choudhary11y ago
Hello @Danish check this code

string str;
int n;
int[] Number = new int[10] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
Console.WriteLine("Enter Number");
str = Console.ReadLine();
foreach (char c in str)
{
n = int.Parse(c.ToString());
Number[n] += 1;
}
for (int i = 0; i < 10; i++)
Console.WriteLine("{0} = {1}", i, Number[i]);
Console.ReadKey();
Rahul Prajapat11y ago
string str;
int n;
int[] Number=new int[10]{0,0,0,0,0,0,0,0,0,0};
Console.WriteLine("Enter Number");
str=Console.ReadLine();
foreach (char c in str)
{
n=int.Parse(c.ToString());
switch (n)
{
case 0:
Number[n]++;
break;
case 1:
Number[n]++;
break;
case 2:
Number[n]++;
break;
case 3:
Number[n]++;
break;
case 4:
Number[n]++;
break;
case 5:
Number[n]++;
break;
case 6:
Number[n]++;
break;
case 7:
Number[n]++;
break;
case 8:
Number[n]++;
break;
case 9:
Number[n]++;
break;
}
}
for (int i = 0; i < 10; i++)
Console.WriteLine("{0} = {1}", i, Number[i]);
Console.ReadKey();
Hariharasudhan Chandramurthy11y ago
var values = textBox1.Text.Select(c => c.ToString()).ToList();
var result = values.Distinct().ToDictionary(v => v, v => values.Count(s => s.Equals(v)).ToString()); foreach (var r in result) {
listBox1.Items.Add(string.Format("{0}-{1} times", r.Key, r.Value));
}