Get the First Positive Value that Does not Exist in Array (Javascript)












0














function solution(A) {
var len = A.length;
if(len > 1){
var max = Math.max.apply(null, A);
var range = Array.from(Array(max).keys());
for(let i = 0; i < range.length; i++){
if(A.includes(range[i]) === false){
if(range[i] > 0){
return range[i];
}
continue;
}
continue;
}
return max + 1;
}else if(len == 1 && (A[0] < 1 || A[0] > 1)){
return 1;
}else if((len == 1) && (A[0] == 1)){
return 2;
}
return 1;
}


This is mainly used to get the first positive value that does not exist in sequence of integers in an array



There is a time complexity of (O(N ** 2)).



Can it be better than this?



If there is no better complexity, can we optimize the for loop better than that?









share







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Mostafa A. Hamid is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

























    0














    function solution(A) {
    var len = A.length;
    if(len > 1){
    var max = Math.max.apply(null, A);
    var range = Array.from(Array(max).keys());
    for(let i = 0; i < range.length; i++){
    if(A.includes(range[i]) === false){
    if(range[i] > 0){
    return range[i];
    }
    continue;
    }
    continue;
    }
    return max + 1;
    }else if(len == 1 && (A[0] < 1 || A[0] > 1)){
    return 1;
    }else if((len == 1) && (A[0] == 1)){
    return 2;
    }
    return 1;
    }


    This is mainly used to get the first positive value that does not exist in sequence of integers in an array



    There is a time complexity of (O(N ** 2)).



    Can it be better than this?



    If there is no better complexity, can we optimize the for loop better than that?









    share







    New contributor




    Mostafa A. Hamid is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























      0












      0








      0







      function solution(A) {
      var len = A.length;
      if(len > 1){
      var max = Math.max.apply(null, A);
      var range = Array.from(Array(max).keys());
      for(let i = 0; i < range.length; i++){
      if(A.includes(range[i]) === false){
      if(range[i] > 0){
      return range[i];
      }
      continue;
      }
      continue;
      }
      return max + 1;
      }else if(len == 1 && (A[0] < 1 || A[0] > 1)){
      return 1;
      }else if((len == 1) && (A[0] == 1)){
      return 2;
      }
      return 1;
      }


      This is mainly used to get the first positive value that does not exist in sequence of integers in an array



      There is a time complexity of (O(N ** 2)).



      Can it be better than this?



      If there is no better complexity, can we optimize the for loop better than that?









      share







      New contributor




      Mostafa A. Hamid is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      function solution(A) {
      var len = A.length;
      if(len > 1){
      var max = Math.max.apply(null, A);
      var range = Array.from(Array(max).keys());
      for(let i = 0; i < range.length; i++){
      if(A.includes(range[i]) === false){
      if(range[i] > 0){
      return range[i];
      }
      continue;
      }
      continue;
      }
      return max + 1;
      }else if(len == 1 && (A[0] < 1 || A[0] > 1)){
      return 1;
      }else if((len == 1) && (A[0] == 1)){
      return 2;
      }
      return 1;
      }


      This is mainly used to get the first positive value that does not exist in sequence of integers in an array



      There is a time complexity of (O(N ** 2)).



      Can it be better than this?



      If there is no better complexity, can we optimize the for loop better than that?







      javascript algorithm





      share







      New contributor




      Mostafa A. Hamid is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










      share







      New contributor




      Mostafa A. Hamid is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.








      share



      share






      New contributor




      Mostafa A. Hamid is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 8 mins ago









      Mostafa A. Hamid

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      11




      New contributor




      Mostafa A. Hamid is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.





      New contributor





      Mostafa A. Hamid is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      Mostafa A. Hamid is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.



























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