add hackathon week

HACKATHON_WEEK.md

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+`# Hacker Principle
+you're code don't have to be pretty or have many function but need to be presentable and runnable
+
+# Project Idea
+
+1. toy tornado cash
+a mixer
+reference below starter code and instruction
+https://securitylab.github.io/cs251-fall21/
+https://securitylab.github.io/cs251-fall21/hw/proj4.pdf
+https://securitylab.github.io/cs251-fall21/lectures/lecture13.pdf
+https://learn.0xparc.org/materials/circom/learning-group-1/breaking-down-tornado
+
+2. zk calculator
+prove your calculation is correct, 
+you may want to reference this: https://github.com/jtriley-eth/zk-calculator
+
+3. battleship
+read https://github.com/darkforest-eth/circuits and understand how it work and make your battleship
+
+4. very simple rollup
+can be even simpler than this https://github.com/rollupnc/RollupNC 
+https://securitylab.github.io/cs251-fall21/lectures/lecture17.pdf
+
+5. solve below puzzle and present to us
+https://zkhack.dev/puzzles/
+
+6. *OR YOUR OWN PROJECT*
+!!!!!! UNVEIL YOUR POWER ANON !!!!!
+
+# Toolkit to Use
+https://github.com/privacy-scaling-explorations/zkp-app-boilerplate
+https://battlezips.gitbook.io/battlezips/development/circom-tester
+https://battlezips.gitbook.io/battlezips/development/hardhat-circom
+https://battlezips.gitbook.io/battlezips/development/shield`