serhiops

'use strict';

const RevercedArray = function(...args) {
  return Reflect.construct(Array, args, new.target);
};

Object.setPrototypeOf(RevercedArray.prototype, Array.prototype);

const arr = new RevercedArray(1, 2, 3);

console.log(arr); // RevercedArray(3) [ 1, 2, 3 ]

#include <iostream>

using std::cout, std::endl;

void printArray(short** arr, const int N){
    for(int i{0}; i<N; ++i){
        for(int j{0}; j <  N - i; ++j){
            cout << arr[i][j] << ' ';
        }
        cout << endl;
    }
}

int main(int argc, char* argv[])
{
    const int N{ 7 };

    short** arr = new short*[N];

    for(int i{ 0 }; i < N; ++i){
        arr[i] = new short[N - i];
        for(int j{0}; j < N - i; ++j){
            arr[i][j] = i + 1;
        }
    }

    printArray(arr, N);

    for(int i{ 0 }; i < N; ++i){
        delete[] arr[i];
    }
    delete[] arr;
    return 0;
}

for (int a = 2; a < 18; a++)
  {
    float t = 4 * a;
    cout << "z=" << 3.5 * pow(t,2) - 7 * t + 16 << "\n";
  }

{
    cout << "z=" << 3.5 * pow(t,2) - 7 * t + 16 << "\n";
 }

class CustomUserModelSerializer(serializers.ModelSerializer):
    """give all users"""
    status = serializers.SerializerMethodField()
    class Meta:
        model= CustomUser
        fields = ('id','email','name','status', 'avatar')

    def get_status(self, obj):
        if obj.is_active == True:
            status = 'active'
        else:
            status = 'inactive'
        return status
 def to_representation(self, instance):
        response = super().to_representation(instance)
        response['avatar'] = instance.user.avatar if not None else "Путь к фото"
        return response

python -m venv venv  #последнее слово - название виртуального окружения