// SPDX-License-Identifier: MIT

pragma solidity ^0.8.9;

contract StorageToStorageReferenceTypeAssignment {

    // Define two state arrays, stateArray1 and stateArray2, both containing two uint elements.

    // stateArray1 initially contains [1, 2], and stateArray2 contains [3, 4].

    uint[2] stateArray1 = [uint(1), 2];

    uint[2] stateArray2 = [uint(3), 4];

    // In the following function:

    // - stateArray1 is assigned to be a reference to stateArray2.

    // - stateArray2's second element is updated to 5.

    // Therefore, stateArray1 now references the same storage location as stateArray2,

    // and the value of stateArray1[1] is 5.

    function getUInt() public returns (uint) {

        stateArray1 = stateArray2;

        stateArray2[1] = 5;

        // Returns the value of stateArray1's second element, which is 5 after the assignment.

        return stateArray1[1]; // returns 5

    }

}

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