Ekaterina Vostrikova

Code example (C#)

Task:

The first input array is the key to the correct answers to an exam, like ["a", "a", "b", "d"]. The second one contains a student's submitted answers.The two arrays are not empty and are the same length. Return the score for this array of answers, giving +4 for each correct answer, -1 for each incorrect answer, and +0 for each blank answer, represented as an empty string.

          
            using System;
            
            public static class Kata
            {
                public static int CheckExam(string[] arr1, string[] arr2)
                {
                    int result = 0;
            
                    for (int i = 0; i < arr1.Length; i++)
                    {
                      if (arr1[i] == arr2[i])
                        result += 4;
                      
                      else if (arr2[i] != "")
                        result -= 1;
                    }
                  if (result < 0)
                    result = 0;
                  return result;
                }
            }