I'm still a beginner and I wanted questions where you would store some information of arrays or maybe strings in hashmaps to improve the codes time complexity. Can any of you please recommend me some questions? Thank you
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Here are some problems for what u asked for,some might be hard for ur difficulty,
U can go in problemset and set tag to "hashing" u can get idea of map after reading it
[Your text to link here...]( https://mirror.codeforces.com/problemset/problem/4/C)
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[Your text to link here...](https://cod[Your text to link here...]( https://mirror.codeforces.com/contest/1629/submission/211515147)eforces.com/problemset/problem/1520/D)
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