<div style="display:inline-block;background-color:#ffffff;"> <div style="font-family:'나눔고딕', NanumGothic, '돋움', Dotum;"> <div style="font-size:12px;display:inline;width:auto;"> </div></div> <div> <table style="font-size:13px;font-family:NanumGothicCoding, '나눔고딕코딩', '나눔고딕', NanumGothic, '돋움', Dotum;white-space:nowrap;" cellspacing="0" cellpadding="0" border="0"><tbody><tr style="padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;"><td style="border-right:#000099 3px solid;color:#888888;padding-bottom:0px;text-align:right;padding-top:0px;padding-left:3px;margin:0px;padding-right:3px;background-color:#ffffff;"> <div>1</div> <div>2</div> <div>3</div> <div>4</div> <div>5</div> <div>6</div> <div>7</div> <div>8</div> <div>9</div> <div>10</div> <div>11</div> <div>12</div> <div>13</div> <div>14</div> <div>15</div> <div>16</div> <div>17</div> <div>18</div> <div>19</div> <div>20</div> <div>21</div> <div>22</div> <div>23</div> <div>24</div> <div>25</div> <div>26</div> <div>27</div> <div>28</div></td> <td style="white-space:nowrap;color:#010101;padding-bottom:0px;padding-top:0px;padding-left:3px;margin:0px;padding-right:3px;" nowrap> <div style="background-color:#f7f7f7;"><font color="#00aacc">#include</font><stdio.h><font color="#00aacc"></font></div> <div style="background-color:#ffffff;"><font color="#00aacc"></font> </div> <div style="background-color:#f7f7f7;"><font color="#00aacc">int</font> main(<font color="#00aacc"></font>)<font color="#00aacc"></font></div> <div style="background-color:#ffffff;"><font color="#00aacc"></font>{<font color="#00aacc"></font></div> <div style="background-color:#f7f7f7;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc">int</font> i,<font color="#00aacc"></font> j;<font color="#00aacc"></font></div> <div style="background-color:#ffffff;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc">int</font> arr[2]<font color="#00aacc"></font>[4]<font color="#00aacc"></font> <font color="#00aacc"></font>=<font color="#00aacc"></font> <font color="#00aacc"></font>{<font color="#00aacc"></font> 1,<font color="#00aacc"></font> 2,<font color="#00aacc"></font> 3,<font color="#00aacc"></font> 4,<font color="#00aacc"></font> 5,<font color="#00aacc"></font> 6,<font color="#00aacc"></font> 7,<font color="#00aacc"></font> 8 <font color="#00aacc"></font>}<font color="#00aacc"></font>;<font color="#00aacc"></font></div> <div style="background-color:#f7f7f7;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> printf(<font color="#00aacc"></font><font color="#993333">"%d %d %d \n"</font><font color="#00aacc"></font>,<font color="#00aacc"></font> arr,<font color="#00aacc"></font> arr[0]<font color="#00aacc"></font>,<font color="#00aacc"></font> arr[1]<font color="#00aacc"></font>)<font color="#00aacc"></font>;<font color="#00aacc"></font></div> <div style="background-color:#ffffff;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> printf(<font color="#00aacc"></font><font color="#993333">"arr-arr[0] =%d  \n"</font><font color="#00aacc"></font>,<font color="#00aacc"></font> <font color="#00aacc"></font>*arr <font color="#00aacc"></font>-<font color="#00aacc"></font> arr[0]<font color="#00aacc"></font>)<font color="#00aacc"></font>;<font color="#00aacc"></font></div> <div style="background-color:#f7f7f7;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> printf(<font color="#00aacc"></font><font color="#993333">"arr[1]-arr[0] =%d \n"</font><font color="#00aacc"></font>,<font color="#00aacc"></font> arr[1]<font color="#00aacc"></font> <font color="#00aacc"></font>-<font color="#00aacc"></font> arr[0]<font color="#00aacc"></font>)<font color="#00aacc"></font>;<font color="#00aacc"></font></div> <div style="background-color:#ffffff;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> printf(<font color="#00aacc"></font><font color="#993333">"int size= %d (byte)\n"</font><font color="#00aacc"></font>,<font color="#00aacc"></font> <font color="#00aacc">sizeof</font>(<font color="#00aacc">int</font>)<font color="#00aacc"></font>)<font color="#00aacc"></font>;<font color="#00aacc"></font></div> <div style="background-color:#f7f7f7;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> printf(<font color="#00aacc"></font><font color="#993333">"arr size= %d (byte)\n\n"</font><font color="#00aacc"></font>,<font color="#00aacc"></font> <font color="#00aacc">sizeof</font>(arr)<font color="#00aacc"></font>)<font color="#00aacc"></font>;<font color="#00aacc"></font></div> <div style="background-color:#ffffff;"><font color="#00aacc"></font> </div> <div style="background-color:#f7f7f7;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> printf(<font color="#00aacc"></font><font color="#993333">"arr[0] size= %d (byte)\n"</font><font color="#00aacc"></font>,<font color="#00aacc"></font> <font color="#00aacc">sizeof</font>(arr[0]<font color="#00aacc"></font>)<font color="#00aacc"></font>)<font color="#00aacc"></font>;<font color="#00aacc"></font></div> <div style="background-color:#ffffff;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> printf(<font color="#00aacc"></font><font color="#993333">"arr[1] size= %d (byte)\n\n"</font><font color="#00aacc"></font>,<font color="#00aacc"></font> <font color="#00aacc">sizeof</font>(arr[1]<font color="#00aacc"></font>)<font color="#00aacc"></font>)<font color="#00aacc"></font>;<font color="#00aacc"></font></div> <div style="background-color:#f7f7f7;"><font color="#00aacc"></font> </div> <div style="background-color:#ffffff;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> printf(<font color="#00aacc"></font><font color="#993333">"원소의 갯수 sizeof(arr) / sizeof(arr[0]) = %d \n"</font><font color="#00aacc"></font>,<font color="#00aacc"></font> <font color="#00aacc">sizeof</font>(arr)<font color="#00aacc"></font> <font color="#00aacc"></font>/<font color="#00aacc"></font> <font color="#00aacc">sizeof</font>(arr[0]<font color="#00aacc"></font>)<font color="#00aacc"></font>)<font color="#00aacc"></font>;<font color="#00aacc"></font></div> <div style="background-color:#f7f7f7;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> printf(<font color="#00aacc"></font><font color="#993333">"원소의 갯수 sizeof(arr) / sizeof(int) = %d \n"</font><font color="#00aacc"></font>,<font color="#00aacc"></font> <font color="#00aacc">sizeof</font>(arr)<font color="#00aacc"></font> <font color="#00aacc"></font>/<font color="#00aacc"></font> <font color="#00aacc">sizeof</font>(<font color="#00aacc">int</font>)<font color="#00aacc"></font>)<font color="#00aacc"></font>;<font color="#00aacc"></font></div> <div style="background-color:#ffffff;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc">int</font>(<font color="#00aacc"></font>*who_b)<font color="#00aacc"></font>[4]<font color="#00aacc"></font> <font color="#00aacc"></font>=<font color="#00aacc"></font> arr;<font color="#00aacc"></font></div> <div style="background-color:#f7f7f7;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc">for</font> <font color="#00aacc"></font>(i <font color="#00aacc"></font>=<font color="#00aacc"></font> 0;<font color="#00aacc"></font> i <font color="#00aacc"></font><<font color="#00aacc"></font> 2;<font color="#00aacc"></font> i+<font color="#00aacc"></font>+<font color="#00aacc"></font>)<font color="#00aacc"></font></div> <div style="background-color:#ffffff;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font>{<font color="#00aacc"></font></div> <div style="background-color:#f7f7f7;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc">for</font> <font color="#00aacc"></font>(j <font color="#00aacc"></font>=<font color="#00aacc"></font> 0;<font color="#00aacc"></font> j <font color="#00aacc"></font><<font color="#00aacc"></font> 4;<font color="#00aacc"></font> j+<font color="#00aacc"></font>+<font color="#00aacc"></font>)<font color="#00aacc"></font></div> <div style="background-color:#ffffff;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font>{<font color="#00aacc"></font></div> <div style="background-color:#f7f7f7;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> printf(<font color="#00aacc"></font><font color="#993333">"%d "</font><font color="#00aacc"></font>,<font color="#00aacc"></font> who_b[i]<font color="#00aacc"></font>[j]<font color="#00aacc"></font>)<font color="#00aacc"></font>;<font color="#00aacc"></font></div> <div style="background-color:#ffffff;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font>}<font color="#00aacc"></font></div> <div style="background-color:#f7f7f7;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> printf(<font color="#00aacc"></font><font color="#993333">"\n"</font><font color="#00aacc"></font>)<font color="#00aacc"></font>;<font color="#00aacc"></font></div> <div style="background-color:#ffffff;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font>}<font color="#00aacc"></font></div> <div style="background-color:#f7f7f7;"><font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc"></font> <font color="#00aacc">return</font> 0;<font color="#00aacc"></font></div> <div style="background-color:#ffffff;"><font color="#00aacc"></font>}<font color="#00aacc"></font></div></td></tr></tbody></table></div></div> <div style="text-align:left;"><img style="border-top:medium none;border-right:medium none;border-bottom:medium none;border-left:medium none;" alt="배열크기.JPG" src="http://thimg.todayhumor.co.kr/upfile/201503/14266795522sEVFN3p8zYFxu4jvyB2G2.jpg" width="666" height="304"></div> <div style="text-align:left;"> </div> <div style="text-align:left;">아래 다른분 질문올려놓은거 연습해보다 궁금한게 있어 질문 올립니다.</div> <div style="text-align:left;"> </div> <div style="text-align:left;">6번째 줄 배열 arr를 int형으로 선언했습니다.</div> <div style="text-align:left;">int 크기는 4 byte</div> <div style="text-align:left;">배열의 크기(arr)는 32 byte로 나옵니다.</div> <div style="text-align:left;"> </div> <div style="text-align:left;">[질문]</div> <div style="text-align:left;">배열의 요소  하나 크기를 보면 arr[0]는 16 byte로 나오는데 왜 이렇게 나오나요?</div> <div style="text-align:left;">배열을 int 형으로 선언했으면 배열의 요소 하나도 4 byte로 나와야 되는거 아닌가요?</div> <div style="text-align:left;"> </div> <div style="text-align:left;">어떻게 이해해야할까요?</div> <div style="text-align:left;">배열의 크기로 배열속에 있는 원소의 갯수를 알아보려고 했는데 16번째줄로 하면 안되고 17번째줄처럼 해야 원소의 갯수를 알 수 있네요.</div>