pragma solidity >=0.4.22 <0.7.0;


contract myArray {
    function getArraySum(uint[] memory _array) public pure returns (uint sum_) {
        sum_ = 0;

        for (uint i = 0; i < _array.length; i++) {
            sum_ += _array[i];
        }
    }
    
    function getArrayMultipliedByScalar(uint[] memory _array, uint scalar) public pure returns (uint[] memory outputArray) {
        outputArray = new uint[](_array.length);

        for (uint i = 0; i < _array.length; i++) {
            outputArray[i] = _array[i] * scalar;
        }
    }

    
    function getFixedArrayMultipliedByScalar(uint[3] memory _array, uint scalar) public pure returns (uint[] memory outputArray) {
        assert(_array.length == 3);
    
        outputArray = new uint[](_array.length);
        for (uint i = 0; i < _array.length; i++) {
            outputArray[i] = _array[i] * scalar;
        }
    }
}