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C# program to determine if any two integers in array sum to given integer
The following is our array −
int[] arr = new int[] { 7, 4, 6, 2 };
Let’s say the given intger that should be equal to sum of two other integers is −
int res = 8;
To get the sum and find the equality.
for (int i = 0; i < arr.Length; i++) { for (int j = 0; j < arr.Length; j++) { if (i != j) { int sum = arr[i] + arr[j]; if (sum == res) { Console.WriteLine(arr[i]); } } } }
Example
using System; using System.Collections.Generic; namespace Demo { public class Program { public static void Main(string[] args) { int[] arr = new int[] { 7, 4, 6, 2 }; // given integer int res = 8; Console.WriteLine("Given Integer {0}: ", res); Console.WriteLine("Sum of:"); for (int i = 0; i < arr.Length; i++) { for (int j = 0; j < arr.Length; j++) { if (i != j) { int sum = arr[i] + arr[j]; if (sum == res) { Console.WriteLine(arr[i]); } } } } } } }
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