inital commit

1 files changed, 70 insertions, 0 deletions

diff --git a/1.19.c b/1.19.c
new file mode 100644
index 0000000..c156afe
--- /dev/null
+++ b/1.19.c
@@ -0,0 +1,70 @@
+#include <stdio.h>
+
+#define MAXLINE 1000
+
+void reverse(char str[]);
+void str_cp(char to[], char from[]);
+
+int
+main(void)
+{
+	int input, i;
+	char str[MAXLINE];
+
+	i = 0;
+
+	while ((input = getchar()) != EOF) {
+		str[i] = input;
+		i++;
+
+		if (input == '\n') {
+                        str[i] = '\0';
+			i = 0;
+			reverse(str);
+                        printf("%s\n", str);
+		}
+	}
+
+	return 0;
+}
+
+void 
+str_cp(char to[], char from[])
+{
+	int i, last_non_blank;
+
+        last_non_blank = -1;
+
+	for (i = 0; from[i] != '\0'; ++i) {
+          if (from[i] != ' '&& from[i] != '\n' && from[i] != '\t')
+            last_non_blank = i;
+
+          to[i] = from[i];
+        }
+		
+        if (last_non_blank >= 0)
+          to[last_non_blank+1] = '\0';
+        else
+          to[i] = '\0';
+}
+
+void
+reverse(char str[])
+{
+	int i, len;
+	char storage[MAXLINE];
+
+        i = len = 0;
+
+	str_cp (storage, str);
+	
+	for ( len = 0; storage[len] != '\0'; len++)
+		;
+
+	for ( i = 0; i < len; ++i)
+		str[i] = storage[len-1-i];
+
+	str[i] = '\0';
+}
+
+