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How to negate the positive elements of an integer array in C#?
The following is the array and its elements −
int[] arr = { 10, 20, 15 };Set negative value to positive elements.
if (arr[i] > 0) arr[i] = -arr[i];
Loop the above until the length of the array.
for (int i = 0; i < arr.Length; i++) {
Console.WriteLine(arr[i]);
if (arr[i] > 0)
arr[i] = -arr[i];
}Let us see the complete example.
Example
using System;
public class Demo {
public static void Main(string[] args) {
int[] arr = { 10, 20, 15 };
Console.WriteLine("Displaying elements...");
for (int i = 0; i < arr.Length; i++) {
Console.WriteLine(arr[i]);
if (arr[i] > 0)
arr[i] = -arr[i];
}
Console.WriteLine("Displaying negated elements...");
for (int i = 0; i < arr.Length; i++) {
Console.WriteLine(arr[i]);
}
}
}Output
Displaying elements... 10 20 15 Displaying negated elements... -10 -20 -15
Updated on 23-Jun-2020 08:00:23
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