function avoidObstacles(nums) {
    let arr = []
    let maxValue = Math.floor(nums[nums.length-1] / 2)
    let checker = (arr, target) => target.every(v => !arr.includes(v))
    for (let x = 2; x < maxValue+1; x++ ) {
        for(let y = 1; y < maxValue; y++) {
            arr.push([x] * [y])
        }
        if(checker(arr,nums)) {
            return arr[0]
        }
        arr = []
    }
}



/**
* Test Suite 
*/
describe('avoidObstacles()', () => {
    it('returns minimal number of jumps in between numbers', () => {
        // arrange
        const nums = [5, 3, 6, 7, 9];
        
        // act
        const result = avoidObstacles(nums);

        // log
        console.log("result: ", result);
        
        // assert
        expect(result).toBe(4);
    });
});