This requires splitting the array which contains age and name of the person, and then performing search operation on the name variable and finally print the age if the name is present in the array.
So, far I have only created a 2D array but don't know how to split and then perform the search
String[,] arr = { { "aakif", "25" }, {"ali", "31"} , {"ben","35"}, {"hassnain" ,"45" } };
using System;
namespace ConsoleApp
{
static partial class Program
{
static void Main(string[] args)
{
Test();
Console.WriteLine();
Console.WriteLine("End.");
Console.ReadKey();
}
static void Test()
{
string[,] arr =
{
{ "aakif", "25" },
{ "ali", "31" },
{ "ben", "35" },
{ "hassnain", "45" }
};
string search = "ali";
string age = arr.GetAge(search);
if ( age != null )
Console.WriteLine($"{search} age = {age}");
else
Console.WriteLine($"{search} not found");
}
static string GetAge(this string[,] array, string name)
{
for ( int index = array.GetLowerBound(0); index <= array.GetUpperBound(0); index++ )
if ( array[index, array.GetLowerBound(1)] == name )
return array[index, array.GetUpperBound(1)];
return null;
}
}
}
Output:
ali age = 31
I do disagree with the way you store your input but you can achieve your search with the following:
String[,] arr = new string[2,4];
arr[0, 0] = "saif";
arr[0, 1] = "25";
arr[0, 2] = "ali";
arr[0, 3] = "17";
arr[1, 0] = "aakif";
arr[1, 1] = "11";
arr[1, 2] = "hassnain";
arr[1, 3] = "50";
int index = -1;
int jindex = -1;
for ( int i =0 ; i <arr.GetLength(0) ; i++) {
for ( int j =0 ; j <arr.GetLength(1) ; j++) {
if (arr[i,j]== "ali") {
index = i;
jindex = j;
break;
}
}
}
if ( index != -1) {
Console.WriteLine(arr[index,jindex] + " " + arr[index,jindex +1 ]);
}
else Console.WriteLine("Not Found");
The first index of the index [0,0], [1,0] if the name you are looking for. [Index, 1] and print the age value.
string[,] arr = { { "aakif", "25" }, { "ali", "31" }, { "ben", "35" }, { "hassnain", "45" } };
string search = "ali";
for (int i = 0; i < arr.GetLength(0); i++)
{
if (arr[i,0].ToString() == search)
{
Console.WriteLine(arr[i, 0] + " " + arr[i, 1] + " years old");
}
}
Dictionary.startandendof the range that you are searching. At some point you will calculate themidpointbetweenstartandendand then update eitherstartorendand assign it the value ofmidpointto continue searching in either the first half or second half of the range.