Find the Symmetric Difference The mathematical term symmetric difference (△ or ⊕) of two sets is the set of elements which are in either of the two sets but not in both. For example, for sets A = {1, 2, 3} and B = {2, 3, 4}, A △ B = {1, 4}. Symmetric difference is a binary operation, which means it operates on only two elements. So to evaluate a…

solution.js

function sym() {
    //return symmetric difference for two arrays 
    const getSym = (x,y) => {
        x = [...new Set(x)].sort((a, b) => a - b);
        y = [...new Set(y)].sort((a, b) => a - b);
        const xLength = x.length;
        const yLength = y.length;
        let i = 0;
        let j = 0;
        let result = []; 
        while(i != xLength && j != yLength){
            if(x[i]>y[j]){
                result.push(y[j]);
                j++;
            }
            else if(x[i]<y[j]){
                result.push(x[i]);
                i++;
            }
            else {
                i++;
                j++;
            }
        }
        while(i<xLength){
            result.push(x[i++]);
        }
        while(j<yLength){
            result.push(y[j++]);
        }
        return result;
    }
    const argsLeng = arguments.length; 
    let tempResult = arguments[0];
    for(let i=1;i<argsLeng;i++){
        tempResult = getSym(tempResult,arguments[i]);
    }
    return tempResult;
}


console.log(sym([1, 2, 5], [2, 3, 5], [3, 4, 5]));