Two Sum problem | Leetcode problem 1

Two Sum problem.
Leetcode problem number 1.
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[@shivam1gaur]

great explanation

[@user-ns8ht9tu3d]

brute force to check is 2 numbers in an array adds to a particular sum

[@hemantchaudhari9331]

nice

[@techrahul2702]

Internal working nhi smj aayi hai..how it works behind the scene??

[@manjotkaur2083]

How to do it withour hashmaps with Time complexity O(n)

[@venkateshvenkat5335]

u r explained in java what abiut python

[@vivekmalviya3036]

Thank u didi❤

[@user-ns8ht9tu3d]

first show the program clearly end 2 end , if any one can take Screenshot of Every programs