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bytesDecode.sol

// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.7.0 <0.9.0;

contract Try {
    function createBytes(uint256 n) public pure returns (bytes memory data) {
        uint256[] memory ret = new uint256[](n);
        for (uint256 i = 0; i < n; i++) {
            ret[i] = i;
        }
        data = abi.encode(ret);
    }

    function decodeBytes(bytes memory data) public pure returns (uint256[] memory ret) {
        return abi.decode(data, (uint256[]));
    }

    function decodeBytes(uint256 n) public pure returns (uint256[] memory ret) {
        bytes memory data = createBytes(n);
        return decodeBytes(data);
    }
}