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  1. Practice
  2. Algorithms
  3. Greedy
  4. Candies
  5. Discussions

Candies

  • nikunj_gupta447 + 4 comments

    try this test case:-

    10
    9 2 3 6 5 4 3 2 2 2

    • vicky2922 + 3 comments
      [deleted]
      • gauravagarwal271 + 0 comments

        how answer will be 20?

      • ranchoparikh + 0 comments
        [deleted]
      • rav_gupta11 + 1 comment

        how it is 20?

        • rav_gupta11 + 2 comments

          In your solution '<' should be there instead of '<=', read first solved example.

          • vicky2922 + 0 comments
            [deleted]
          • vicky2922 + 4 comments
                for(int i = 1 ; i < n  ;i++){ //forward track
        if(arr[i] > arr[i-1]){
            dp[i] = dp[i] + dp[i-1]; 
        }
    }

    for(int i = n-2 ; i >= 0 ; i--){ // back track
        if(arr[i] > arr[i+1] && dp[i] <= dp[i+1]){
            dp[i] = dp[i+1] + 1;
        }
    }

    its 22 ..
            • paul_dirac + 0 comments
              [deleted]
            • khushlanipiyush + 1 comment

              I don't think it's a true dp as we are doing reinforcement in the dp array which is not done generally. I also had somewhat same solution but my array name was not dp as mentioned earlier.

              • ariellyrycs + 2 comments

                9 2 3 6 5 4 3 2 2 2

                1,1,2,3,1,1,1,1,1,1 right

                2,1,1,5,4,3,2,1,1,1 left

                find out the max for each reasult

                2,1,2,5,4,3,2,1,1,1

                2+1+2+5+4+3+2+1+1= 20

                • paullb + 0 comments
                  [deleted]
                • anmolmittal53 + 0 comments

                  brother your maths need to be brushed up first off all you havn't included the last (1) in your result and even if you have not included, you haven't sum up all the values right 2+1+2+5+4+3+2+1+1 = 21

            • yashiagarwal1812 + 0 comments

              how is this working i am unable to get it . could you please explain

            • yashiagarwal1812 + 0 comments
              [deleted]
    • thakkarjinal99 + 0 comments
      [deleted]
    • smritirastogi33 + 0 comments

      22?

    • rutulpatel2000 + 0 comments
      [deleted]