Question

Ray, Shiv and Ansh are conducting a survey for a group of people. The survey is only meant for twins but there are certain people who are not twins and wanting to take part in the survey. Write an algorithm to help them identify the person from the given input who is not a twin.

Input The first line of input consists of an integer- inputArr_size, representing the number of entries in the array (N). The next line consists of N spaceseparated integer elements in the array. Output Print the smallest value of the person who is not a twin from the given array of elements.

Answer 1

To identify the person who is not a twin from the given array of elements, we can use the concept of frequency counts. We can create a dictionary to store the frequency of each element in the array. Then, we can iterate through the dictionary and find the element with a frequency of 1, as that would be the person who is not a twin. Finally, we can print the smallest value of that person.

Step-by-step explanation:

To identify the person who is not a twin from the given array of elements, we can use the concept of frequency counts. We can create a dictionary to store the frequency of each element in the array. Then, we can iterate through the dictionary and find the element with a frequency of 1, as that would be the person who is not a twin. Finally, we can print the smallest value of that person.

Algorithm:

1. Create an empty dictionary called frequency
2. Iterate through the input array:
   
   • 
     
   • If the element is not in the dictionary, add it with a frequency of 1
   • 
     
   • If the element is already in the dictionary, increment its frequency by 1
   • 
     
3. Initialize min_value as infinity
4. Iterate through the dictionary:
   
   • 
     
   • If the frequency is 1 and the element is less than min_value, update min_value to the element
   • 
     
5. Print min_value