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leetcode/problem/transpose-file.html

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+<p>Given a text file <code>file.txt</code>, transpose its content.</p>
+
+<p>You may assume that each row has the same number of columns, and each field is separated by the <code>&#39; &#39;</code> character.</p>
+
+<p><strong>Example:</strong></p>
+
+<p>If <code>file.txt</code> has the following content:</p>
+
+<pre>
+name age
+alice 21
+ryan 30
+</pre>
+
+<p>Output the following:</p>
+
+<pre>
+name alice ryan
+age 21 30
+</pre>