关于SegmentFault:思维私塾一行代码解决算法

<div class=”output_wrapper” id=”output_wrapper_id” style=”font-size: 15px; color: rgb(62, 62, 62); line-height: 1.8; word-spacing: 2px; letter-spacing: 2px; font-family: ‘Helvetica Neue’, Helvetica, ‘Hiragino Sans GB’, ‘Microsoft YaHei’, Arial, sans-serif; background-image: linear-gradient(90deg, rgba(50, 0, 0, 0.05) 3%, rgba(0, 0, 0, 0) 3%), linear-gradient(360deg, rgba(50, 0, 0, 0.05) 3%, rgba(0, 0, 0, 0) 3%); background-size: 20px 20px; background-position: center center;”> 有些算法题目，只有把握了思路就能够用很短的代码来实现它。比方上面这几道题目：
<h3 id=”h” style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; border-bottom: 2px solid rgb(239, 112, 96); font-size: 1.3em;”><span style=”font-size: inherit; line-height: inherit; margin: 0px; display: inline-block; font-weight: normal; background: rgb(239, 112, 96); color: rgb(255, 255, 255); padding: 3px 10px 1px; border-top-right-radius: 3px; border-top-left-radius: 3px; margin-right: 3px;”> 二的幂 </h3>
<h4 id=”h-1″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; font-size: 1.2em;”> 问题 </h4>
 判断一个数字是否是 2 的 n 次方 
<h4 id=”h-2″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; font-size: 1.2em;”> 解答 </h4>
 遇到 2 的幂次方，要建设位移操作的思维，如果 n 是二的幂，即最高位为 1 其余地位为 0，那么 n - 1 就是最高位为 0，其余地位为 1，那么 n &(n-1) 就是 0 
<pre style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px;”><span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">1<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">boolean isPowerOfTow(<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">int n){ <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">2 <span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">return (n>0)%%(n&(n-1))==0; <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">3}</pre>
<h3 id=”h-3″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; border-bottom: 2px solid rgb(239, 112, 96); font-size: 1.3em;”><span style=”font-size: inherit; line-height: inherit; margin: 0px; display: inline-block; font-weight: normal; background: rgb(239, 112, 96); color: rgb(255, 255, 255); padding: 3px 10px 1px; border-top-right-radius: 3px; border-top-left-radius: 3px; margin-right: 3px;”> 三的幂 </h3>
<h4 id=”h-4″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; font-size: 1.2em;”> 问题 </h4>
 判断一个数字是否为 3 的 n 次方 
<h4 id=”h-5″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; font-size: 1.2em;”> 解答 </h4>
int 类型中不溢出状况下 3 的最高次方即为 1162261467，那么只有这个数去约 n 为 0，那么阐明 n 的约数只有三，即为 3 的 n 次方.
 同样的做法也能够实用于 5 的幂,7 的幂,X 的幂（X 是一个素数）之类的题目。
<pre style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px;”><span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">1<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">boolean isPowerOfThree(<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">int n){ <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">2 <span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">return (n>0)&&(116261467%n)==0; <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">3}</pre>
<h3 id=”h1″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; border-bottom: 2px solid rgb(239, 112, 96); font-size: 1.3em;”><span style=”font-size: inherit; line-height: inherit; margin: 0px; display: inline-block; font-weight: normal; background: rgb(239, 112, 96); color: rgb(255, 255, 255); padding: 3px 10px 1px; border-top-right-radius: 3px; border-top-left-radius: 3px; margin-right: 3px;”> 二进制 1 的个数 </h3>
<h4 id=”h-6″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; font-size: 1.2em;”> 问题 </h4>
 给定一个数字 n，求 n 转换为二进制示意中 1 的个数 
<h4 id=”h-7″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; font-size: 1.2em;”> 解答 </h4>
JDK 大法好，间接应用自带的办法：
<ul style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; padding-left: 32px; list-style-type: disc;”>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”>bitCount：返回二进制中 1 的个数 </li>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”>lowestOneBit：返回二进制示意中最低位 1 的地位 </li>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”>highestOneBit：返回二进制示意中最高位 1 的地位 </li>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”>numberOfLeadingZeros：返回二进制示意中高位 0 的数目 </li>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”>numberOfTrailingZeros：返回二进制示意中低位 0 的数目 </li>
</ul>
<pre style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px;”><span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">1 int bitCount(int num) { <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">2 <span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">return Integer.bitCount(num); <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">3 }</pre>
 或者也能够不应用 jdk 类库的解法 
<pre style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px;”><span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">1int bitOfOne(int num) { <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">2 <span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">return num == 0 ? 0 : 1 + bitOfOne(num & (num - 1)); <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">3 }</pre>
<h3 id=”h-8″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; border-bottom: 2px solid rgb(239, 112, 96); font-size: 1.3em;”><span style=”font-size: inherit; line-height: inherit; margin: 0px; display: inline-block; font-weight: normal; background: rgb(239, 112, 96); color: rgb(255, 255, 255); padding: 3px 10px 1px; border-top-right-radius: 3px; border-top-left-radius: 3px; margin-right: 3px;”> 阶乘后的零 </h3>
<h4 id=”h-9″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; font-size: 1.2em;”> 问题 </h4>
 给定一个数字 n，求 n！位数中的 0 的个数。
<h4 id=”h-10″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; font-size: 1.2em;”> 解答 </h4>
 这种问题咱们要剖析 0 的产生起因，因为 10=52，对于一个 n！的数字而言，开端为 0 的数字即 n！的约数中蕴含的 5 2 的次数，因为 2 的次数是足够的，也就是说这道题等价于求 n！中约数 5 的个数（留神诸如 25 这种数字，约数中包含了 2 个 5）。
<pre style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px;”><span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">1int zeroAtTheEndCount(int num) { <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">2 <span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">return num / 5 + zeroAtTheEndCount(num / 5); <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">3 }</pre>
<h3 id=”h-11″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; border-bottom: 2px solid rgb(239, 112, 96); font-size: 1.3em;”><span style=”font-size: inherit; line-height: inherit; margin: 0px; display: inline-block; font-weight: normal; background: rgb(239, 112, 96); color: rgb(255, 255, 255); padding: 3px 10px 1px; border-top-right-radius: 3px; border-top-left-radius: 3px; margin-right: 3px;”> 燃烧的灯 </h3>
<h4 id=”h-12″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; font-size: 1.2em;”> 问题 </h4>
 有 x 个灯，一个开关管制一个灯，按下开关会使灯燃烧或者关上，当初灯都是燃烧的状态，咱们进行 n 次操作，每次操作都把编号为 i 的倍数的开关全副按下，即 
<ul style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; padding-left: 32px; list-style-type: disc;”>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”> 将编号为 1 的倍数的开关全副按下 </li>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”> 将编号为 2 的倍数的开关全副按下 </li>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”>…</li>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”> 将编号为 x 的倍数的开关全副按下 </li>
</ul>
 已知灯的总数为 x，求最初灯亮起来状态的数量 
<h4 id=”h-13″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; font-size: 1.2em;”> 解答 </h4>
 首先任意取灯的编号 n，会有几次操作会影响这个灯的状态呢？答案是 n 的所有约数的个数次。
 好比说编号为 12 的灯，12 的约数有 1，2，3，4，6，12。也就是说编号为 12 的灯的状态会被切换 6 次，别离在第 1，2，3，4，6，12 次切换开关的时候。
 那么从上面 2 种状况思考：
<ul style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; padding-left: 32px; list-style-type: disc;”>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”> 假如 n 是一个非齐全平方的数：因为为一个非平方的数的约数个数为偶数个，也就是说会切换偶数次状态，也就是说状态不会变。</li>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”> 假如 n 是一个齐全平方数：齐全平方数的约数是奇数个，其状态会产生扭转。</li>
</ul>
 那么依照题目的要求，一开始全是燃烧状态的，求亮起来状态的灯数目，就是说求会发生变化的编号的数目，也就是相当于求 1～x 之间齐全平方数的个数。
<pre style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px;”><span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">1<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">int lightCount(<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">int num) { <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">2 <span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">return (<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">int) Math.sqrt(num); <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">3 }</pre>
<h3 id=”h-14″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; border-bottom: 2px solid rgb(239, 112, 96); font-size: 1.3em;”><span style=”font-size: inherit; line-height: inherit; margin: 0px; display: inline-block; font-weight: normal; background: rgb(239, 112, 96); color: rgb(255, 255, 255); padding: 3px 10px 1px; border-top-right-radius: 3px; border-top-left-radius: 3px; margin-right: 3px;”> 奇怪的数 </h3>
<h4 id=”h-15″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; font-size: 1.2em;”> 问题 </h4>
 给定一个非空数组，其中除了一个元素只呈现一次外，其余元素都呈现了两次，求这个只呈现一次的元素 
<h4 id=”h-16″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; font-size: 1.2em;”> 解答 </h4>
 这里的一个要害运算符是 ^ 异或运算符，次要是利用到了异或运算 a^b 满足的如下法则：
<ul style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; padding-left: 32px; list-style-type: disc;”>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”>a^b=b^a 交换律 </li>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”>a^b^c=a^(b^c) 结合律 </li>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”>a^a=0, 同时 0^0=0</li>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”>0^a=a</li>
</ul>
<pre style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px;”><span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">1int loseNumber(int[] num) { <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">2 <span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">return Arrays.stream(num).reduce(0, (n1, n2) -> n1 ^ n2); <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">3 }</pre>
<h3 id=”h-17″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; border-bottom: 2px solid rgb(239, 112, 96); font-size: 1.3em;”><span style=”font-size: inherit; line-height: inherit; margin: 0px; display: inline-block; font-weight: normal; background: rgb(239, 112, 96); color: rgb(255, 255, 255); padding: 3px 10px 1px; border-top-right-radius: 3px; border-top-left-radius: 3px; margin-right: 3px;”> 约瑟夫环问题 </h3>
<h4 id=”h-18″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; font-size: 1.2em;”> 问题 </h4>
 编号为 1 - n 的 n 个兵士围成一圈，从编号 1 的兵士开始顺次报数，数到 m 的兵士会淘汰，当前的兵士再从新报数，直到剩下一个士兵，求这个士兵的编号 
<h4 id=”h-19″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; font-size: 1.2em;”> 解答 </h4>

删除前（old）	删除后（new）
m-2	n-2
m-1	n-1
m	无
m+1	1
m+2	2

<ul style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; padding-left: 32px; list-style-type: disc;”>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”> 假如 old 为删除前的节点编号，new 为删除后的节点编号 </li>
<li style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; margin-bottom: 0.5em;”>- 关系：old=(new+m-1)%n+1</li>
</ul>
<blockquote style=”line-height: inherit; display: block; padding: 15px 15px 15px 1rem; font-size: 0.9em; margin: 1em 0px; color: rgb(0, 0, 0); border-left: 5px solid rgb(239, 112, 96); background: rgb(239, 235, 233); overflow: auto; overflow-wrap: normal; word-break: normal;”>
 留神：并不是 old=(new+m)%n，因为编号是从 1 开始的而不是从 0 开始的，如果 new+m== n 的话，会导致最初的计算结果 old=0.
</blockquote>
<pre style=”font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px;”><span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">1<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">int f(<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">int n,<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">int m){ <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">2 <span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">if(n==1) <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">3 <span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">return n; <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">4 <span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-weight: bold; word-wrap: inherit !important; word-break: inherit !important;">return (f(n-1,m)+m-1)%n+1; <span class="linenum hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(0, 128, 128); padding-right: 20px; word-spacing: 0px; word-wrap: inherit !important; word-break: inherit !important;">5}</pre>
<h3 id=”h-20″ style=”color: inherit; line-height: inherit; padding: 0px; margin: 1.6em 0px; font-weight: bold; border-bottom: 2px solid rgb(239, 112, 96); font-size: 1.3em;”><span style=”font-size: inherit; line-height: inherit; margin: 0px; display: inline-block; font-weight: normal; background: rgb(239, 112, 96); color: rgb(255, 255, 255); padding: 3px 10px 1px; border-top-right-radius: 3px; border-top-left-radius: 3px; margin-right: 3px;”> 最初 </h3>
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