Lohann

// Implementation of itoa (int to ASCII), which converts an 64-bit to decimal string.
//
// Based on Tigran Hayrapetyan Algorithm: `34% faster Integer to String conversion algorithm`
// ref: https://towardsdatascience.com/34-faster-integer-to-string-conversion-algorithm-c72453d25352/
//
// @author Lohann Paterno Coutinho Ferreira <[email protected]>
#include "itoa.h"

// lookup table of powers of 10, used by `ilog10` and `itoa`.
static uint64_t const powers_of10[20] = {

Lohann

// Author: Lohann Paterno Coutinho Ferreira
//
// Heap's Permutation Algorithm

/// Move all duplicated elements to the end of the array.
/// Returns the number of distinct elements.
fn move_duplicated<T: PartialEq>(array: &mut [T]) -> usize {
    let mut n = array.len();
    let mut i = 0;
    while i < n {

Lohann

/*
 * @author Lohann Paterno Coutinho Ferreira <[email protected]>
 *
 * Example on how to add numbers using only bitwise operators:
 * - xor: ^ 
 * - and: &
 * - not: ~
 * - or:  |
 *
 * # Motivation

Lohann

// Script auxiliar para fazer a chamada automaticamente no WebAluno a partir do
// arquivo `.csv` gerado pelo Microsoft Teams, para utilizar o script basta logar
// no WebAluno e abrir a chamada, então basta copiar e colar a função abaixo no
// console do navegador, o script então:
// 1 - Irá pedir para vc abrir o Report CSV gerado pelo Microsoft Teams.
// 2 - Irá extrair os alunos automaticamente da primeira coluna do CSV.
// 3 - Irá marcar as checkbox dos alunos que faltaram, e desmarcar dos que vieram.
// 4 - Os nomes que estavam no Teams, mas não na lista de chamada serão reportados no final da execuçãp.
// Aproveite!
// 

Lohann

// WasteGas
// This contract spends 100% of the gas you provide to it, always, and return success.
// @author Lohann Paterno Coutinho Ferreira <[email protected]>
//
JUMPDEST
PUSH1 52
GAS
GT
PUSH0
JUMPI

Lohann

[package]
name = "rust-wasm-minimal"
version = "0.1.0"
edition = "2021"

[lib]
name = "rust_wasm_minimal"
crate-type = ["cdylib"]

[target.'cfg(not(target_arch = "wasm32"))'.dependencies]

Lohann

[package]
name = "wasm-executor"
version = "0.1.0"
edition = "2021"

[dependencies]
anyhow = "1.0.91"
wasmtime = { version = "26.0.0", default-features = false, features = ["cache", "cranelift", "wat", "parallel-compilation", "pooling-allocator"] }

Lohann

// -- package.json --
// "dependencies": {
//     "wabt": "^1.0.36"
// }

/**
 * The WAT code (WebAssembly Text Format) which must be compiled to WASM (binary).
 * - Library used to compile: https://github.com/WebAssembly/wabt
 * - WebAssembly instructions set: https://webassembly.github.io/spec/core/text/instructions.html
 */

Lohann

// -- Cargo.toml --
// [dependencies]
// rand = { version = "0.8.5" }
// const-hex = { version = "1.13.1" }
use rand::prelude::*;

// Tamanho do secret e do vetor de inicialização.
const BLOCK_SIZE: usize = 16;

#[allow(clippy::manual_memcpy)]

Lohann

const fn modpow(g: u32, exp: u128, n: u32) -> u32 {
    let mut exponente = exp;
    let mut resultado = 1;
    let mut double = g;
    while exponente > 0 {
        if exponente % 2 == 1 {
            resultado *= double;
            resultado %= n;
        }
        exponente /= 2;