Added leetcode codes for two Trees and Graph problems

codemistic / Data-Structures-and-Algorithms

A repository to help the open-source community with DSA related contributions

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Added leetcode codes for two Trees and Graph problems #568

Closed sahanmndl closed 1 year ago

sahanmndl commented 1 year ago

This PR contains two code files for Binary Trees LCA and Target Sum under CPP / Trees, and two Leetcode solutions regarding graphs i.e. Flood Fill and Number of Closed Islands, under CPP / Problems.