• + 1 comment
    [deleted]
    • + 1 comment

      can u guyz tell me whats wrong in my code?

      long arrayManipulation(int n, vector> queries) {

      long int arr[n+1];
      memset(arr,0,sizeof(arr));
      long int m = queries.size();
      long int max = 0;
      long int sum = 0;
      for(int i=0;i<m;i++)
      {
          long int a = queries[i][0];
          long int b = queries[i][1];
          long int k = queries[i][2];
      
          arr[a-1] += k;
          arr[b] -= k;
      }
      for(int x=0;x<n;x++)
      {
          sum += arr[x];
          if(max < sum)
              max = sum;
      }
      return max;
      

      }

      • + 2 comments

        Addition needs to be done at a and subtraction at b+1. Also,avoid memset on hackerrank sometimes it doesn't work fine. Lastly,the final loop would run till <=n.

        • + 0 comments

          actually this code works fine in 1st 3 test cases... and my code is for 0-indexed that is why I used a-1 and b does it wrong?