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/** This example code is designed to quickly deploy an example contract using Remix.
 *  If you have never used Remix, try our example walkthrough: https://docs.chain.link/docs/example-walkthrough
 *  You will need testnet ETH and LINK.
 *     - Ropsten ETH faucet: https://faucet.ropsten.be/
 *     - Ropsten LINK faucet: https://ropsten.chain.link/
 */
 
pragma solidity ^0.6.0;

import "https://github.com/smartcontractkit/chainlink/evm-contracts/src/v0.6/ChainlinkClient.sol";

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pragma solidity >=0.4.22 <0.7.0;

/**
 * @title Storage
 * @dev Store & retrieve value in a variable
 */
contract Storage {

    uint256 number;

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Overflow and Underflow Analysis for Vault State Variables

Overview

This document analyzes all state variables in the vault program for potential overflow and underflow vulnerabilities. The analysis covers the Vault account, UserAccount account, and related data structures.

State Variable Analysis

1. Vault Account State Variables

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Smart Contract Security Audit Report

Sol-Vault Protocol - Critical Vulnerabilities Found

Audit Date: July 2025 Test Scenarios: 5,000+ contract execution flows

---

Executive Summary

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Overflow and Underflow Analysis for Vault State Variables

Overview

This document analyzes all state variables in the vault program for potential overflow and underflow vulnerabilities. The analysis covers the Vault account, UserAccount account, and related data structures.

State Variable Analysis

1. Vault Account State Variables

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🧮 Vault Batch Processing Computational Benchmark

KEY FINDINGS

The maximum users per batch in real execution conditions is 59 users as found by the compute units stress limits test. Previously Rowship developer @WalquerX who is in charge of unit test mentioned that the limit lied between 7 and 100 users. Through boundary exploration we found out the hard limit of this implementation of the Vault program is 59 users.

LIMITS ANALYSIS

Compute Unit Limits

After several tests under different conditions computing units per user lie between 23728 and 51852 CU/User.

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import { useEffect, useState } from "react";
import "./styles.css";

// Instructions:
// Create a custom Hook to detect if the user scrolled to the bottom of the page

const usePageBottom = () => {
  /* logic goes here */
  const [reachedBottom, setReachedBottom] = useState(false);
  useEffect(() => {

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import { useState } from "react";
import "./styles.css";

/* Visit www.reactchallenges.live */

/* Instructions: 
   Create a Progress Bar that should fill based on the input percentage value
*/

const ProgressBar = ({ width }) => {

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import React, { useState, useEffect, useRef } from "react";
import "./styles.css";

// AbortController is a built-in Web API - no import needed in modern browsers/Node.js
// For older environments, you might need a polyfill
function useFetch(url) {
  const [data, setData] = useState(null);
  const [loading, setLoading] = useState(true);
  const [error, setError] = useState("");

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// SPDX-License-Identifier: GPL-3.0

pragma solidity ^0.5.16;
pragma experimental ABIEncoderV2;

import "./Base/XTokenOracle.sol";
import "./Uniswap/UniswapAnchoredView.sol";
import "./Chainlink/ChainlinkPriceOracle.sol";