diff --git a/The C Programming Language/1.16.c b/The C Programming Language/1.16.c
new file mode 100644
index 0000000..88d96c9
--- /dev/null
+++ b/The C Programming Language/1.16.c	
@@ -0,0 +1,51 @@
+#include <stdio.h>
+
+#define MAXLINE 10
+
+int _getline(char line[], int maxline);
+void copy(char to[], char from[]);
+
+main()
+{
+	int len;
+	int max;
+	char line[MAXLINE];
+	char longest[MAXLINE];
+
+	max = 0;
+	while ((len = _getline(line, MAXLINE)) > 0)
+		if (len > max)
+		{
+			max = len;
+			copy(longest, line);
+		}
+	if (max > 0)
+		printf("%d: %s\n", max, longest);
+
+	return 0;
+}
+
+int _getline(char s[], int lim)
+{
+	int c, i, j;
+	for (i = 0; (c = getchar()) != '\n'; ++i)
+	{
+		if (i < lim - 1)
+			s[i] = c;
+	}
+
+	j = i;
+	if (j > lim - 1)
+		j = lim - 1;
+	s[j] = '\0';
+	return i;
+}
+
+void copy(char to[], char from[])
+{
+	int i;
+
+	i = 0;
+	while ((to[i] = from[i]) != '\0')
+		++i;
+}