PBPeter Blockmaninpeterblockman.hashnode.dev·Jul 29, 2023 · 3 min readQuick guide to Rust's From/Into and TryFrom/TryInto TraitsWhile working with Rust, I find myself implementing a lot of From/Into or TryFrom/TryInto traits in my code. Whether you're dealing with simple conversions or handling more complex scenarios with potential errors, mastering these traits is key to wri...00
PBPeter Blockmaninpeterblockman.hashnode.dev·Nov 10, 2022 · 2 min readCairo: Uint256Introduction If you are confused about what value should be passed into the low and high of Uint256 in Cairo? you are not alone. I was confused the first time I saw it too. After digging into the code and asking around, I finally figured it out. What...00
PBPeter Blockmaninpeterblockman.hashnode.dev·Nov 8, 2022 · 3 min readCairo exercise: Polynomial EquationProblem Write a program poly.cairo that computes the expression: $$ x^3 + 23x^2+ 45x + 67 = 0, x = 100 $$ After the program ends, the value should be at [ap - 1]. For this exercise, you may assume that the fp register is constant and initialized to...00
PBPeter Blockmaninpeterblockman.hashnode.dev·Nov 8, 2022 · 3 min readCairo: compute Pedersen hash of an array of felts challengeIntroduction Cairo provides a built-in hash2 function to calculate the Pedersen hash of two felts. In this challenge, we will recursively compute the hash of an array of felts. The challenge ex_hash_chain.cairo // Task: // Develop a function that is...00
PBPeter Blockmaninpeterblockman.hashnode.dev·Nov 6, 2022 · 5 min readCairo: pattern of bits challengeIntroduction In Encode's Cairo Bootcamp, there is an interesting bit manipulation challenge. It took me some time to figure it out. In this article, I will discuss the challenge and the solution. The challenge ex7.cairo %lang starknet from starkware....00
