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

Plus Minus

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3162 Discussions

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  • ros_alex79
     + 0 comments
    def plusMinus(arr):
    # Write your code here
    total_count = len(arr)
    print(f'{sum([1 for x in arr if x > 0]) / total_count:.6f}')
    print(f'{sum([1 for x in arr if x < 0]) / total_count:.6f}')
    print(f'{sum([1 for x in arr if x == 0]) / total_count:.6f}')

  • kaadir_yaalcin
     + 0 comments

    Here is mine. It has also null check.

    public static void plusMinus(List arr) { double positiveQuantity, negativeQuantity, zeroQuantity = 0;

        foreach(var item in arr){
        if(item > 0) positiveQuantity++;
        else if(item < 0) negativeQuantity++;
        else zeroQuantity++;
    }

    int length = arr.Count;

    Console.WriteLine(positiveQuantity>0?(positiveQuantity/length):0);
    Console.WriteLine(negativeQuantity>0?(negativeQuantity/length):0);
    Console.WriteLine(zeroQuantity>0?(zeroQuantity/length):0);
}

  • alban_tyrex
     + 0 comments

    Here is my c++ solution, you can watch the explanation here : https://youtu.be/OqevjJbsN2Q

    void plusMinus(vector<int> arr) {
    double sp, sn, sz, pa = 1.0 / arr.size();
    sp = sn = sz = 0;
    for(int i = 0; i < arr.size(); i++){
        if(arr[i] > 0) sp+= pa;
        else if(arr[i]<0) sn+= pa;
        else sz+= pa;
    }
    cout << setprecision(6) << fixed;
    cout << sp <<endl;
    cout << sn <<endl;
    cout << sz <<endl;
}

  • soundarraja_2201
     + 0 comments

    Here is the solution in C:

    void plusMinus(int arr_count, int* arr) {
double positive=0,negative=0,zero=0;
for(int i=0;i<arr_count;i++){
    if(arr[i]>0) positive++;
    else if(arr[i]<0) negative++;
    else zero++;
}
positive/=arr_count;
negative/=arr_count;
zero/=arr_count;
printf("%.6f\n%.6f\n%.6f",positive,negative,zero);
}

  • karlasanchez0424
     + 0 comments

    Could be better. But here it is in golang:

    func plusMinus(arr []int32) {
    var pos int32
    var negs int32
    var zeros int32
    for _, a := range arr{
        if a < 0 {
            negs++
        } else if a > 0{
            pos++
        } else{
            zeros++
        }
        
    }
    positives := float32(pos) / float32(len(arr))
    negatives := float32(negs) / float32(len(arr))
    zers := float32(zeros) / float32(len(arr))
    fmt.Printf("%.6f\n%.6f\n%.6f\n", positives, negatives, zers)
    

}