2- click “create new file” ex: arzbama_scroll.sol3- copy this code and paste in right panel

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

interface IERC20 {
 
    event Transfer(address indexed from, address indexed to, uint256 value);

    event Approval(address indexed owner, address indexed spender, uint256 value);

    function totalSupply() external view returns (uint256);

    function balanceOf(address account) external view returns (uint256);

     function transfer(address to, uint256 amount) external returns (bool);

    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 amount) external returns (bool);

    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

contract ERC20 is IERC20 {

    mapping(address => uint256) public override balanceOf;

    mapping(address => mapping(address => uint256)) public override allowance;

    uint256 public override totalSupply; 

    string public name;   
    string public symbol;  
    
    uint8 public decimals = 18; 
    address public owner;

    constructor(string memory name_, string memory symbol_){
        name = name_;
        symbol = symbol_;
        owner = msg.sender;
    }

    function transfer(address recipient, uint amount) external override returns (bool) {
        balanceOf[msg.sender] -= amount;
        balanceOf[recipient] += amount;
        emit Transfer(msg.sender, recipient, amount);
        return true;
    }

    function approve(address spender, uint amount) external override returns (bool) {
        allowance[msg.sender][spender] = amount;
        emit Approval(msg.sender, spender, amount);
        return true;
    }

    function transferFrom(
        address sender,
        address recipient,
        uint amount
    ) external override returns (bool) {
        allowance[sender][msg.sender] -= amount;
        balanceOf[sender] -= amount;
        balanceOf[recipient] += amount;
        emit Transfer(sender, recipient, amount);
        return true;
    }

    function mint(uint amount) external {
        require(owner == msg.sender);
        balanceOf[msg.sender] += amount;
        totalSupply += amount;
        emit Transfer(address(0), msg.sender, amount);
    }

    function burn(uint amount) external {
        balanceOf[msg.sender] -= amount;
        totalSupply -= amount;
        emit Transfer(msg.sender, address(0), amount);
    }

}

3- click compile

4-choose injected provider - metamask 5- type name_ and symbol_ with strings, such as tobber, tob.

click the “transact”

6- type 18000000000000000000000000 to “mint” function and click “transact”

copy the address of our token address free collect entry

7- go to this site and create liquidity

<https://uniswap-v3.scroll.io/ >

2- click accept and click “create new file “ex: arzbama.sol

3- copy below code and patse in the right panel

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
contract FunctionTypes{
    uint256 public number = 5;
    
    constructor() payable {}

    function add() external{
        number = number + 1;
    }

    function addPure(uint256 _number) external pure returns(uint256 new_number){
        new_number = _number+1;
    }

    function addView() external view returns(uint256 new_number) {
        new_number = number + 1;
    }

    function minus() internal {
        number = number - 1;
    }

    function minusCall() external {
        minus();
    }

    function minusPayable() external payable returns(uint256 balance) {
        minus();    
        balance = address(this).balance;
    }
}

4- click compile

5- Turn the metamsk network to scroll alpha testnet, click “red 1”，

then choose injected provider-metamsk,

type name_ and symbol_ with strings, such as tobber, tob.

click the “transact”

6- click deploy

free collect entry