Problem 32

function getNumberFromArray(array) {

let sum = 0;

array.forEach((element, index) => { sum += element * 10 ** (array.length - 1 - index)}) ;

return sum;

}

function checkCondition(lhsArray, rhsArray) {

const preposition1 = getNumberFromArray(lhsArray.slice(0,1)) * getNumberFromArray(lhsArray.slice(1,lhsArray.length)) === getNumberFromArray(rhsArray);

const preposition2 = getNumberFromArray(lhsArray.slice(0,2)) * getNumberFromArray(lhsArray.slice(2,lhsArray.length)) === getNumberFromArray(rhsArray);

return preposition1 || preposition2;

// return true;

}

// console.log(checkCondition([3,9,1,8,6], [7,2,5,4]))

function checkPalindrome(toUseArray, lhsArray, rhsArray) {

if (toUseArray.length === 0) {

if (checkCondition(lhsArray, rhsArray)) {

console.log(lhsArray + ' ' + rhsArray);

}

return checkCondition(lhsArray, rhsArray)

} else {

if (rhsArray.length === 4) {

let makesUpForPalindrome = false;

toUseArray.forEach((item, index) => {

const arrayCopy = [...toUseArray];

const a = arrayCopy.splice(index,1)

makesUpForPalindrome = makesUpForPalindrome || checkPalindrome(arrayCopy, [...lhsArray, a], rhsArray)

})

const result = makesUpForPalindrome

if (result) {console.log(result)}

return result;

} else {

let sum = 0;

toUseArray.forEach((item, index) => {

const arrayCopy = [...toUseArray];

const a = arrayCopy.splice(index, 1)

sum += checkPalindrome(arrayCopy, [], [...rhsArray,a]) ? 1 : 0

})

return sum

}

}

}

console.log(checkPalindrome([1,2,3,4,5,6,7,8,9], [], []));