0xOsiris

0xOsiris

### Keybase proof

I hereby claim:

  * I am 0xosiris on github.
  * I am 0xosiris (https://keybase.io/0xosiris) on keybase.
  * I have a public key ASBrLVP8Id9YT6JSHDTlWfyYmlSSYTbpKlWboDMj3F1c8go

To claim this, I am signing this object:

0xOsiris

//SPDX-License-Identifier: UNLICENSED
pragma solidity 0.6.12;

pragma experimental ABIEncoderV2;

interface IERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external view returns (string memory);

0xOsiris

//SPDX-License-Identifier: UNLICENSED
pragma solidity 0.6.12;

pragma experimental ABIEncoderV2;

interface IERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external view returns (string memory);

0xOsiris

public class ListSet<T> implements Set<T>{
  private int find(T e){
    int i = 0; 
    while(elements.hasNext()){
      if(elements.next()==null){
        return -1;
      }else{
        if(e==elements.next(){
          return elements.next()
        }