Question

Write a C# program to generate Lists of random 5 elements each containing only binary numbers like 1 or 0 only such that there is only one 1 in the list in any random position and the rest four elements are zeroes. . For eg: (10000) or (01000) or (00100) or (00010) or (00001).

Answer 1

/* PLease read all the comments, */

/* Source code*/

using System;

public class Solution{
   static public void Main (){
   int TOTAL = 5;
   Random r = new Random();
   //Create array for 5 different place
       int []a= new int[TOTAL];
       for(int i=0;i<TOTAL;i++)
       a[i] = i;
         
       //loop to decide which index can be replaced by 1
       for (int i = TOTAL - 1; i > 0; i--)
{
int j = r.Next(0, i+1);
int temp = a[i];
a[i] = a[j];
a[j] = temp;
}
  
//Now we have different place for 1, fill it at specified and
//fill rest position with 0
//like if array ith value is 3, so fill 1 at index 3 and rest place would break
//like 00010
  
//Create static string based on Size which is here TOTAL = 5
//For this, below s variable would be finally "00000"
string s = "";
for(int i=0;i<TOTAL;i++)
s +="0";
  
  
//Now create total TOTAL string with value of s
string [] data = new string[TOTAL];
for(int i=0;i<TOTAL;i++)
data[i] = s;
  
//Now replace by 1 in each string array for specific manner made by randomized algorithm by
// first for loop
for(int i=0;i<TOTAL;i++)
{
//Convert the current to charArray for easy change in its respective index by 1
char [] charArray = data[i].ToCharArray();
  
//Now change by 1 in specific index, deciding it should be repeatative
charArray[a[i]] = '1';
  
//Again convert into string and replace by reassign
data[i] = new string(charArray);
}
  
//Now show the all resultant string
for(int i=0;i<TOTAL;i++){
Console.WriteLine(data[i]);
}
  
//NOTE: if you want to check for other value like 6 or 10, just change value of
//TOTAL declared at begining of program
  
   }
}

/* Editor screen*/

/* Output screen*/

/* Each time, you run you will have different output*/

  

/* That's all . Thanks*/