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  1. Practice
  2. Algorithms
  3. Warmup
  4. Plus Minus
  5. Discussions

Plus Minus

  • michael_tepp + 1 comment

    Or for short:

    import java.util.Scanner;

    public class Solution {

    public static void main(String[] args) {
    Scanner in = new Scanner(System.in);
    final int n = in.nextInt();
    final float[] count = new float[3];

    for (int i=0;i<n;i++) {
        count[1+Integer.signum(in.nextInt())]++;
    }
    System.out.printf("%.6f %n",count[2]/n);
    System.out.printf("%.6f %n",count[0]/n);
    System.out.printf("%.6f %n",count[1]/n);
}

    }

    • subas113 + 1 comment

      using System; using System.Collections.Generic; using System.IO; using System.Linq; class Solution {

      static void Main(String[] args) {
    int n = Convert.ToInt32(Console.ReadLine());
    //string[] arr_temp = Console.ReadLine().Split(' ');
    //int[] arr = Array.ConvertAll(arr_temp,Int32.Parse);
    decimal positiveNum = 0, negativeNum = 0, zeroNum = 0, temp = (decimal)1 / n;

    foreach (string ch in Console.ReadLine().Split(' '))
    {
    Int16 num = Convert.ToInt16(ch);
    if (num > 0)
    {
    ++positiveNum;
    }
    else if (num < 0)
    {
    ++negativeNum;
    }
    else if (num == 0)
    {
    ++zeroNum;
    }
    }

    Console.WriteLine(Math.Round(positiveNum * temp, 6));
    Console.WriteLine(Math.Round(negativeNum * temp, 6));
    Console.WriteLine(Math.Round(zeroNum * temp, 6));

}

      }

      • ashutoshkabra + 0 comments

        My C# Version:

        int n = Convert.ToInt32(Console.ReadLine());
string[] arr_temp = Console.ReadLine().Split(' ');
int[] arr = Array.ConvertAll(arr_temp, Int32.Parse);
int[] count = new int[] { 0, 0, 0 };
decimal[] fraction = new decimal[] { 0, 0, 0 };

foreach (int num in arr)
{
    if (num == 0)
        count[2]++;
    else if (num > 0)
        count[0]++;
    else
        count[1]++;
}

for(int idx = 0; idx < fraction.Length; idx++)
{
    fraction[idx] = (decimal)count[idx] / (decimal)arr.Count();
}

foreach(decimal num in fraction)
{
    Console.WriteLine(string.Format("{0:N6}", num));
}