- Maximum Subarray Sum after inverting at most two elements
- Largest number not greater than N which can become prime after rearranging its digits
- Count number of subsets whose median is also present in the same subset
- Smallest multiple of N formed using the given set of digits
- Generate an Array in which count of even and odd sum sub-arrays are E and O respectively
- Minimum number of given operations required to reduce the array to 0 element
- Check whether given string can be generated after concatenating given strings
- Create a sequence whose XOR of elements is y
- Maximize the size of array by deleting exactly k sub-arrays to make array prime
- Remove elements to make array satisfy arr[ i+1] < arr[i] for each valid i
- Convert many to many mappings to maximum no of one to one mappings
- Find maximum path sum in a 2D matrix when exactly two left moves are allowed

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