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#include <bits/stdc++.h> | |
using namespace std; | |
class Shape | |
{ | |
public: | |
virtual void draw() = 0; | |
virtual ~Shape() = default; | |
}; |
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// SPDX-License-Identifier: MIT | |
pragma solidity ^0.8.8; | |
abstract contract abst{ | |
uint public val = 3; | |
function imp() public pure virtual returns(uint); | |