Tags: prefix-sum hashmap modular-arithmetic

Subsequences Summing to Sevens, Medium

• Imp things.
  • You will be hitting a wall, if negative remainders will not be taken care of.
  • This includes some concept of NT(number theory)
• Things I learnt
  • How to do number theory with prefix sum
  • was new approach to me.
• More problems.
  • Subarray Divisibility, Medium