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//Write your own contracts here. Currently compiles using solc v0.4.15+commit.bbb8e64f.

pragma solidity ^0.4.18;

contract BoardMemberContract {
    struct BoardMember {
        address memberAddress;   // Address of the board member
        string name;             // Name of the board member
        uint256 joiningDate;     // Timestamp of when the member joined
    }

BoardMember[] public boardMembers;
    mapping(address => bool) public isBoardMember;

event BoardMemberAdded(address indexed memberAddress, string name, uint256 joiningDate);
    event BoardMemberRemoved(address indexed memberAddress);

function addBoardMember(address _memberAddress, string _name) public {
        require(!isBoardMember[_memberAddress]);
        require(bytes(_name).length > 0);

BoardMember memory newMember = BoardMember({
            memberAddress: _memberAddress,
            name: _name,
            joiningDate: block.timestamp
        });

boardMembers.push(newMember);
        isBoardMember[_memberAddress] = true;

BoardMemberAdded(_memberAddress, _name, block.timestamp);
    }

function removeBoardMember(address _memberAddress) public {
        require(isBoardMember[_memberAddress]);

for (uint i = 0; i < boardMembers.length; i++) {
            if (boardMembers[i].memberAddress == _memberAddress) {
                // Move the last board member to this position and then shorten the array
                boardMembers[i] = boardMembers[boardMembers.length - 1];
                delete boardMembers[boardMembers.length - 1];
                boardMembers.length--;
                break;
            }
        }

isBoardMember[_memberAddress] = false;

BoardMemberRemoved(_memberAddress);
    }

function getBoardMemberCount() public view returns (uint) {
        return boardMembers.length;
    }

function getBoardMember(uint index) public view returns (address memberAddress, string name, uint256 joiningDate) {
        require(index < boardMembers.length);

BoardMember memory member = boardMembers[index];
        return (member.memberAddress, member.name, member.joiningDate);
    }

function isAddressBoardMember(address _memberAddress) public view returns (bool) {
        return isBoardMember[_memberAddress];
    }
}