tasks a-s

Task/Repeat-a-string/C/repeat-a-string-2.c

@@ -0,0 +1,13 @@
+...
+char *string_repeat(const char *str, int n)
+{
+   char *pa, *pb;
+   size_t slen = strlen(str);
+   char *dest = malloc(n*slen+1);
+
+   pa = dest + (n-1)*slen;
+   strcpy(pa, str);
+   pb = --pa + slen;
+   while (pa>=dest) *pa-- = *pb--;
+   return dest;
+}