// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
library MathLib {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
}
contract Calculator {
function compute(uint256 x, uint256 y) public pure returns (uint256) {
return MathLib.add(x, MathLib.mul(x, y));
}
}