18_Equal_Pairs

18_Equal_Pairs

using System;

namespace _18_Equal_Pairs
{
    class EqualPairs
    {
        static void Main(string[] args)
        {
            int length = int.Parse(Console.ReadLine());;
            int sum = 0;
            int maxDifference = int.MinValue;
            bool allEqual = true;

            for (int i = 0; i < length; i++)
            {
                int number1 = int.Parse(Console.ReadLine());
                int number2 = int.Parse(Console.ReadLine());
                int newSum = number1 + number2;

                if (i == 0)
                {
                    sum = number1 + number2;
                }

                if (newSum != sum)
                {
                    allEqual = false;
                    int difference = Math.Abs(newSum - sum);
                    maxDifference = Math.Max(maxDifference, difference);
                    sum = newSum;
                }
            }

            if (allEqual)
            {
                Console.WriteLine("Yes, value={0}", sum);
            }
            else
            {
                Console.WriteLine("No, maxdiff={0}", maxDifference);
            }
        }
    }
}