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Question #24 Difficulty: 3

According to the Solidity 0.8.17 compiler (200 optimization runs) 

    // What does C.f() return?

contract C {

  function f() external pure returns (uint) {

    uint[] memory arr = new uint[](2);
    arr[0] = 3;
    arr[1] = 3;

    assembly {
      mstore(arr, 1)
    }

    return arr[1];
  }
}

Hint:

The first 32 bytes of an array is the length

Answer:

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