console.log('Zadanie 3');

function bigestSumOfTwoElements(array) {
    var result=0;
    if(array.length==0){
        return false;
    }
    else if(array.length==1){
        return result=array[0];
    }
    else if(array.length>1){
        array.sort(function (a,b) {
            return b-a;
        })
        result=array[0]+array[1];
        return result;
    }
}

console.log(bigestSumOfTwoElements([1,2,3,4]));
console.log(bigestSumOfTwoElements([]));
console.log(bigestSumOfTwoElements([76]));
console.log(bigestSumOfTwoElements([23,45,17,12]));