现有用户?据一种href="//www.parkandroid.com/account/login/?next=/practice/strings-level-4-5-challenges/" id="problem-login-link-alternative" class="btn-link ax-click" data-ax-id="clicked_login_from_generic_modal" data-ax-type="button" data-is_modal="true" data-next="/practice/strings-level-4-5-challenges/">登录据/a>
现有用户?据一种href="//www.parkandroid.com/account/login/?next=/practice/strings-level-4-5-challenges/" id="problem-login-link-alternative" class="btn-link ax-click" data-ax-id="clicked_login_from_problem_modal" data-ax-type="button" data-is_modal="true" data-next="/practice/strings-level-4-5-challenges/">登录据/a>
假设我们有两个字符串据span class="katex">
一种据/span>和据span class="katex">
B.据/span>。我们想设计一个功能据span class="katex">
F据/span>(据/span>一种据/span>那据/span>B.据/span>)据/span>这告诉我们两个字符串的近距离。合理的测量是测量必须对一个字符串进行多少“编辑”操作以便将其更改为另一个字符串。有三种可能的“编辑”操作:据/p>
替换:替换单个角色据span class="katex">
一种据/span>所以它匹配据span class="katex">
B.据/span>成本据span class="katex">
1据/span>。如果据span class="katex">
一种据/span>=据/span>腐烂据/span>和据span class="katex">
B.据/span>=据/span>点据/span>。然后据span class="katex">
F据/span>(据/span>一种据/span>那据/span>B.据/span>)据/span>=据/span>1据/span>。据/p>
插入:插入单个字符也成本据span class="katex">
1据/span>。即,如果据span class="katex">
一种据/span>=据/span>女孩据/span>和据span class="katex">
B.据/span>=据/span>女孩们据/span>, 然后据span class="katex">
F据/span>(据/span>一种据/span>那据/span>B.据/span>)据/span>=据/span>1据/span>。据/p>
删除:删除单个字符也成本据span class="katex">
1据/span>。IE。如果据span class="katex">
一种据/span>=据/span>小时据/span>和据span class="katex">
B.据/span>=据/span>我们的据/span>然后据span class="katex">
F据/span>(据/span>一种据/span>那据/span>B.据/span>)据/span>=据/span>1据/span>。据/p>
给予据span class="katex">
一种据/span>和据span class="katex">
B.据/span>,计算据span class="katex">
F据/span>(据/span>一种据/span>那据/span>B.据/span>)据/span>。据/p>
您确定要查看解决方案吗?据/p>
让我们据strong>逆转据/strong>一个正整数据span class="katex"> N据/span>,表示据span class="katex"> R.据/span>(据/span>N据/span>)据/span>那据/span>当数字的数字后退时是结果;例如,据span class="katex"> R.据/span>(据/span>1据/span>9.据/span>0.据/span>)据/span>=据/span>0.据/span>9.据/span>1据/span>那据/span>要不就据span class="katex"> 9.据/span>1据/span>。据/span>
叫正整数据span class="katex"> N据/span>杰出的据/strong>如果据span class="katex-display"> N据/span>+据/span>R.据/span>(据/span>N据/span>)据/span>
是13的倍数。让据span class="katex"> B.据/span>是据span class="katex"> 1据/span>0.据/span>0.据/span>0.据/span>0.据/span>泰铢的数字。计算最后三位数字据span class="katex"> B.据/span>。据/span>
您确定要查看解决方案吗?据/p>
回文 - 素数或据strong>pallime.据/strong>是一个也是一个回文的素数。前几个宫殿是据span class="katex"> 2据/span>那据/span>3.据/span>那据/span>5.据/span>那据/span>7.据/span>那据/span>1据/span>1据/span>那据/span>1据/span>0.据/span>1据/span>那据/span>1据/span>3.据/span>1据/span>那据/span>1据/span>5.据/span>1据/span>那据/span>1据/span>8.据/span>1据/span>那据/span>1据/span>9.据/span>1据/span>。据/span>。据/span>。据/span>。让据span class="katex"> S.据/span>是最大的Palprime的数字的总和据span class="katex"> N据/span>这样据span class="katex"> N据/span>据据/span>1据/span>0.据/span>9.据/span>。值是什么据span class="katex"> S.据/span>还是据/p>
您确定要查看解决方案吗?据/p>
问题加载......据/p>
注意加载......据/p>
设置加载......据/p>