{"id":192,"date":"2019-08-08T13:22:00","date_gmt":"2019-08-08T13:22:00","guid":{"rendered":"https:\/\/imwarming.com\/?p=192"},"modified":"2019-08-08T13:22:00","modified_gmt":"2019-08-08T13:22:00","slug":"%e7%ae%80%e5%8d%95%e7%ae%97%e6%b3%95%e5%a4%8d%e6%9d%82%e5%ba%a6%e8%ae%a1%e7%ae%97","status":"publish","type":"post","link":"https:\/\/imwarming.com\/?p=192","title":{"rendered":"\u7b80\u5355\u7b97\u6cd5\u590d\u6742\u5ea6\u8ba1\u7b97"},"content":{"rendered":"<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> <span style=\"color: #0000ff;\">void<\/span> reverse( <span style=\"color: #0000ff;\">string<\/span> &amp;<span style=\"color: #000000;\">s ){\n<\/span><span style=\"color: #008080;\">2<\/span>     <span style=\"color: #0000ff;\">int<\/span> n =<span style=\"color: #000000;\"> s.size();\n<\/span><span style=\"color: #008080;\">3<\/span>     <span style=\"color: #0000ff;\">for<\/span>(<span style=\"color: #0000ff;\">int<\/span> i = <span style=\"color: #800080;\">0<\/span> ; i &lt; n\/<span style=\"color: #800080;\">2<\/span> ; i++ )<span style=\"color: #008000;\">\/\/<\/span><span style=\"color: #008000;\">\u8fd9\u4e2a\u5faa\u73af\u8d70\u4e86n\/2\u6b21\uff0c\u6240\u4ee5o(n)<\/span>\n<span style=\"color: #008080;\">4<\/span>         swap( s[i] , s[n-<span style=\"color: #800080;\">1<\/span>-<span style=\"color: #000000;\">i] );\n<\/span><span style=\"color: #008080;\">5<\/span> }<\/pre>\n<\/div>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> <span style=\"color: #0000ff;\">int<\/span> count = <span style=\"color: #800080;\">1<\/span><span style=\"color: #000000;\">;      \n<\/span><span style=\"color: #008080;\">2<\/span> <span style=\"color: #0000ff;\">while<\/span> (count &lt; n){<span style=\"color: #008000;\">\/\/<\/span><span style=\"color: #008000;\">cout*2^x=n,x=logn,\u6240\u4ee5o(logn)<\/span>\n<span style=\"color: #008080;\">3<\/span>    count = count * <span style=\"color: #800080;\">2<\/span><span style=\"color: #000000;\">;\n<\/span><span style=\"color: #008080;\">4<\/span> }<\/pre>\n<\/div>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> <span style=\"color: #0000ff;\">int<\/span><span style=\"color: #000000;\"> i, j;      \n<\/span><span style=\"color: #008080;\">2<\/span> <span style=\"color: #0000ff;\">for<\/span>(i = <span style=\"color: #800080;\">1<\/span>; i &lt; n; i++)<span style=\"color: #008000;\">\/\/<\/span><span style=\"color: #008000;\">n^3<\/span>\n<span style=\"color: #008080;\">3<\/span>     <span style=\"color: #0000ff;\">for<\/span>(j = <span style=\"color: #800080;\">1<\/span>; j &lt; n; j++<span style=\"color: #000000;\">)\n<\/span><span style=\"color: #008080;\">4<\/span>         <span style=\"color: #0000ff;\">for<\/span>(j = <span style=\"color: #800080;\">1<\/span>; j &lt; n; j++<span style=\"color: #000000;\">){\n<\/span><span style=\"color: #008080;\">5<\/span> <span style=\"color: #000000;\">               ......\n<\/span><span style=\"color: #008080;\">6<\/span>         }<\/pre>\n<\/div>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> <span style=\"color: #0000ff;\">int<\/span><span style=\"color: #000000;\"> i, j;      \n<\/span><span style=\"color: #008080;\">2<\/span> <span style=\"color: #0000ff;\">for<\/span>(i = <span style=\"color: #800080;\">0<\/span>; i &lt; n; i++){<span style=\"color: #008000;\">\/\/<\/span><span style=\"color: #008000;\">n^2<\/span>\n<span style=\"color: #008080;\">3<\/span>     <span style=\"color: #0000ff;\">for<\/span>(j = i; j &lt; n; j++<span style=\"color: #000000;\">){   \n<\/span><span style=\"color: #008080;\">4<\/span> <span style=\"color: #000000;\">        .....\n<\/span><span style=\"color: #008080;\">5<\/span> <span style=\"color: #000000;\">    }\n<\/span><span style=\"color: #008080;\">6<\/span> }<\/pre>\n<\/div>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> <span style=\"color: #0000ff;\">for<\/span>(<span style=\"color: #0000ff;\">int<\/span> i=<span style=\"color: #800080;\">2<\/span>;i*i&lt;=n;i++){<span style=\"color: #008000;\">\/\/<\/span><span style=\"color: #008000;\">sqrt(n)<\/span>\n<span style=\"color: #008080;\">2<\/span> <span style=\"color: #000000;\">    ....\n<\/span><span style=\"color: #008080;\">3<\/span> <span style=\"color: #000000;\">}<\/span><\/pre>\n<\/div>\n<p>&nbsp;<img decoding=\"async\" src=\"https:\/\/img2018.cnblogs.com\/blog\/1634852\/201908\/1634852-20190809114808883-680312248.png\" alt=\"\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1 void reverse( string &amp;s ){ 2 int n = s.size( 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