Hi,

You can find the "standard" instructor solution in the new code, the trick is to calculate the lower range of the bomb-effect and the total count of numbers destroyed. For some reason, when trying to test your solution, judge gives as input only a single array (?), but the logic of the solution is still valid.

;-)

// function bombDetonation(arr1)// => Judge {
function bombDetonation(arr1, arr2) {

    let specialBombNum = arr2.shift();
    let powerBomb = arr2.shift();

    // Judge Input Setup, when only single array is passed => bombDetonation(['1 2 2 4 2 2 2 9', '4 2', '']);
    // let [specialBombNum, powerBomb] = [...arr1[1].split(' ').map(Number)];
    // let numberArray = [...arr1[0].split(' ').map(Number)];

    // for (let i = 0; i < numberArray.length; i++) {
    for (let i = 0; i < arr1.length; i++) {

        // if (arr1.includes(specialBombNum)) {
        if (arr1[i] === specialBombNum) {

            // let indexSpecial = arr1.indexOf(specialBombNum);

            // for (let i = indexSpecial - 1; i >= powerBomb; i--) {
            //     arr1.splice(i, 1);

            // }

            // for (let i = powerBomb - 1; i <= indexSpecial; i++) {
            //     arr1.splice(i, 1);

            // }

            // arr1.splice(specialBombNum);



            // If bombNumber is included in the numberArray, calulate its lower range position
            // and bombCount in order to set up your splice function. Carefull, lower range can be
            // negative and therefor validation must check and correct the range and count accordingly
            let lowerRange = i - powerBomb;
            let bombCount = 1 + (powerBomb * 2);

            while (lowerRange < 0) {
                lowerRange++;
                bombCount--;
            }

            arr1.splice(lowerRange, bombCount);
            // Important to set back the for-loop, since it has been modified and not to miss out on
            // a valid bombNumber or use includes() and indexOf() to avoid setting back i
            i--;
        }

    }
    let reducer = (a, b) => a + b;
    console.log(arr1.reduce(reducer));
}

bombDetonation([1, 1, 2, 1, 1, 1, 2, 1, 1, 1],
    [2, 1]
);
bombDetonation([1, 7, 7, 1, 2, 3],
    [7, 1]
);
bombDetonation([1, 2, 2, 4, 2, 2, 2, 9],
    [4, 2]
);
bombDetonation([1, 4, 4, 2, 8, 9, 1],
    [9, 3]
);