// SPDX-License-Identifier: MIT pragma solidity ^0.8.19; contract PackingIssues { // Poor struct packing - wastes storage slots struct User { bool isActive; // 1 byte uint256 balance; // 32 bytes bool isVerified; // 1 byte uint256 timestamp; // 32 bytes uint8 level; // 1 byte } User[] public users; function addUser(uint256 balance, uint8 level) external { users.push(User({ isActive: true, balance: balance, isVerified: false, timestamp: block.timestamp, level: level })); } }