{"id":34098,"date":"2024-11-01T09:24:06","date_gmt":"2024-11-01T09:24:06","guid":{"rendered":"http:\/\/atmokpo.com\/w\/?p=34098"},"modified":"2024-11-01T10:53:25","modified_gmt":"2024-11-01T10:53:25","slug":"c-coding-test-course-finding-the-sum-of-numbers","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/34098\/","title":{"rendered":"C# Coding Test Course, Finding the Sum of Numbers"},"content":{"rendered":"
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Date: October 20, 2023<\/p>\n

Author: Algorithm Expert<\/p>\n<\/header>\n

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1. Problem Description<\/h2>\n

\n Many modern software development positions evaluate candidates’ algorithm and problem-solving skills through coding tests.
\n The topic of this course is “Calculating the Sum of Numbers.” You are required to write a program that calculates the sum of the given numbers.
\n The problem is as follows:\n <\/p>\n

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Problem:<\/strong> Given an integer N, write a program to output the sum of N integers A1, A2, …, AN given in sequence.<\/p>\n<\/blockquote>\n

\n The first line of input consists of the integer N, and the second line contains N integers.
\n You should output the sum of the given N integers on one line.\n <\/p>\n

Example<\/h3>\n

Input<\/h4>\n
\n    5\n    1 2 3 4 5\n    <\/pre>\n
Output<\/h4>\n
\n    15\n    <\/pre>\n<\/section>\n
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2. Problem Analysis<\/h2>\n
\n      This problem requires simple arithmetic operations. You need to count the number of given numbers and execute the task of adding them all.
\n      A confusing part can be the method used to receive input.
\n      In C#, Console.ReadLine()<\/code> is primarily used, and it’s important to note that the read data needs to be converted to an appropriate data type.
\n      Since the input data is space-separated, you can use the Split()<\/code> method.\n    <\/p>\n<\/section>\n
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3. Problem Solving Approach<\/h2>\n
\n      The approach to solve the problem is as follows:\n    <\/p>\n
    \n
  1. Read the integer N from the first line of input.<\/li>\n
  2. Read N integers from the next line and store them in an array.<\/li>\n
  3. Calculate the sum of all numbers stored in the array.<\/li>\n
  4. Output the calculated sum.<\/li>\n<\/ol>\n
    3.1. Input Method<\/h3>\n
    \n      In C#, you can read a line of input using Console.ReadLine()<\/code>.
    \n      Since this method reads the input in string format, it should be converted to an integer with int.Parse()<\/code> or Convert.ToInt32()<\/code> if necessary.\n    <\/p>\n
    3.2. Sum Calculation<\/h3>\n
    \n      In C#, there are various ways to calculate the sum of an array. You can implement it using loops or Linq according to your preference.
    \n      Using a loop to calculate the sum will help in understanding the operation more explicitly.\n    <\/p>\n<\/section>\n
    \n
    4. C# Coding<\/h2>\n
    Now, let’s write the C# code to solve the problem. Below is the complete code:<\/p>\n
    \n    using System;\n\n    class Program\n    {\n        static void Main(string[] args)\n        {\n            \/\/ Read the integer N from the first line.\n            int N = Convert.ToInt32(Console.ReadLine());\n            \n            \/\/ Read N integers from the second line and store them in an array.\n            string[] inputNumbers = Console.ReadLine().Split(' ');\n            int sum = 0;\n\n            \/\/ Convert each number to an integer and calculate the sum.\n            for (int i = 0; i < N; i++)\n            {\n                sum += Convert.ToInt32(inputNumbers[i]);\n            }\n\n            \/\/ Output the final sum.\n            Console.WriteLine(sum);\n        }\n    }\n    <\/pre>\n
    4.1. Code Explanation<\/h3>\n