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Adding PiApproximation algo (#6602)

* Adding PiApproximation algo

* Added clang formatting

* Added private method

* checkstyle fix

* checkstyle fix

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Co-authored-by: Deniz Altunkapan <93663085+DenizAltunkapan@users.noreply.github.com>
Y
Yash Rajput committed
b031a0bbbac28a4ce2af6ddbd1efe00b0188fe2f
Parent: 5f8d8ee
Committed by GitHub <noreply@github.com> on 10/8/2025, 12:16:14 PM