[Solved] Write a program in C# which uses Iterative Binary Search algorithm to search age of the person using his / her name

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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");

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solved Write a program in C# which uses Iterative Binary Search algorithm to search age of the person using his / her name