QuestionMarks.js

/*
Questions Marks
Have the function QuestionsMarks(str) take the str string parameter, 
which will contain single digit numbers, letters, and question marks, and 
check if there are exactly 3 question marks between every pair of two numbers 
that add up to 10. If so, then your program should return the string true, 
otherwise it should return the string false. If there aren't any two numbers 
that add up to 10 in the string, then your program should return false as well.

For example: if str is "arrb6???4xxbl5???eee5" then your program should return 
true because there are exactly 3 question marks between 6 and 4, and 3 question 
marks between 5 and 5 at the end of the string.
*/

function QuestionsMarks(str) { 

    let arr = [], bool = false;
  
    str.split('').map((item, idx) => {
      if(item != '?'){
        arr = []
      }else{
        arr.push(item)
      }
      console.log( arr.join(''))
      if(arr.join('') == '???'){
        bool = true;
      }
  
    })
  
    // code goes here  
    return bool;
  }
// More Efficient for all cases
  function QuestionsMarks2(str) { 
    res = false;
    for(let i=0; i<str.length; i++){
        for(let j=i+1; j<str.length; j++){
            if(Number(str[i]) + Number(str[j])=== 10){
                res = true;
                if(str.slice(i,j).split("?").length -1 < 3){
                    return false;
                }
            }
        }
    }
    return res;
}
     
  // keep this function call here 
  console.log(QuestionsMarks(readline()));