Leetcode 523. Continuous Subarray Sum | Coding Decoded SDE Sheet
Here is the solution to "Continuous Subarray Sum" leetcode question. Hope you have a great time going through it.
🎉Question: leetcode.com/problems/continu...
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Пікірлер: 9
Awesome explanation Thank you
Why your are not uploading videos? What happened?
Bro if Constraints: 1
Plse tell that how did you managed to change light to dark theme in leetcode panel
@gauravpatil07
Жыл бұрын
yes this is always headache for me
@SK-vs9ry
Жыл бұрын
Click on your profile option (the one beside the Streak counter) on the menu and switch on the Dark Mode over there to get the darker theme across the entire page Note that this works only in case of the new Leetcode version In the old Leetcode version, we can change only the coding area's theme by clicking on the "Editor Settings" option which is shown below the Streak counter and over there we can select whichever theme we want.
why did you take m[0] = -1?
@Codebreaker0702
Жыл бұрын
did u got it?
MORE EASY WAY class Solution { public boolean checkSubarraySum(int[] arr, int k) { int n = arr.length; // remainder, index // agr koi remainder vapas repeat hua toh vo vapas iska matlab beech //vale numbers divisible h k sa HashMap hm = new HashMap(); hm.put(0,-1); // agr shuru k 2 he k sa divisible hogye prefix sum pa he toh // zero hashmap m mil jaye and -1 isliye ke agr phla element divisible hua k sa // toh ans na return karde we need minimum 2 elements int prefixSum = 0; for(int i = 0 ; i prefixSum += arr[i]; int key = prefixSum%k; if(hm.containsKey(key)){ if(i - hm.get(key) >= 2) return true; }else hm.put(key,i); } return false; } }