1 files changed, 19 insertions, 0 deletions

diff --git a/1/9.c b/1/9.c
new file mode 100644
index 0000000..2fb4866
--- /dev/null
+++ b/1/9.c
@@ -0,0 +1,19 @@
+#include <stdio.h>
+
+/* replaces one or more blanks with a single blank */
+int main(int argc, char *argv[]) {
+  int prev, curr;
+
+  prev = 'a';
+
+  while ((curr = getchar()) != EOF) {
+    if (prev == ' ' && curr == ' ') {
+      continue;
+    }
+
+    putchar(curr);
+    prev = curr;
+  }
+
+  return 0;
+}
\ No newline at end of file